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Courses
Agronomy
Steven L. Fales, Chair of Department
Distinguished Professors: Fehr
Professor: Anderson, Arritt, Barnhart, Blackmer, Campbell, Cianzio,
Cruse, Fales, Fenton, Gutowski, Hartzler, Horton, Killorn, Lamkey,
Lee, Liebman, Loynachan, Miller, Moore, Mullen, Owen,
P. Peterson, Sandor, Schnable, Tabatabai, Takle, Taylor, Whigham
Professors (Collaborators): Hatfield, Jaynes, Karlen, Kaspar, Palmer,
Shoemaker
Distinguished Professors (Emeritus): Bremner, Frey, Hallauer, Pesek,
Russell, Shaw
Professors (Emeritus): I. Anderson, M. Anderson, Atkins, Benson,
Burris, I. Carlson, R. Carlson, George, Green, Hodges, Imsande,
Keeney, Larson, Pearce, Schafer, Schaller, A. Scott, Shibles, Shrader,
Skrdla, Stritzel, H. Thompson, L. Thompson, Troeh, Voss, Wedin,
Woolley, Yarger
Associate Professors: Brummer, Burras, Dekker, Knapp, Mallarino,
Manu, T. Peterson, Salvador, Sawyer, M. Thompson, Wang, Westgate,
Wiedenhoeft
Associate Professors (Collaborators): Cambardella, Grant, Kovar,
Laird, Logsdon, Moorman, Olson, Pollak, M. Scott
Assistant Professors: Al-Kaisi, Becraft, Bhattacharyya, Delate,
Gibson, Goggi, Gu, Halverson, Henning, Jannink, Muenchrath, Polito
Assistant Professors (Adjunct): Heuchelin, Todey
Assistant Professors (Collaborators): Gardner, Guan, Sauer, Widrlechner
Instructors: Ziegler
Undergraduate Study
For undergraduate curriculum in agronomy, see College of
Agriculture, Curricula.
The Department of Agronomy provides a curriculum for students interested
in crop science, soil science, agricultural meteorology and environmental
science.
Students selecting agronomy as a major will elect an option in general
agronomy, environmental science, or science.
Graduates have the theoretical and practical knowledge needed for
efficient and sustainable production of food, feed, and fiber. They
have a broad understanding of the role and diversity of plants,
soils, and climates of the world. Graduates are skilled in communications,
critical thinking, problem solving, and working effectively with
others. Students develop these skills in our required courses. They
understand the ethical, cultural, and environmental dimensions of
issues facing professionals in agriculture and natural resources.
An agronomy major prepares students for employment in agricultural
business and industry, agricultural service organizations, crop
production and soil management, environmental and natural resource
management, farm management, and governmental agencies. Graduates
pursue careers in the seed, fertilizer, and agricultural chemical
industries as field agronomists, crop and soil management specialists,
research technicians, sales and marketing specialists, and production
managers. State and federal agencies employ agronomists as extension
specialists, county extension directors, environmental and natural
resource specialists, research associates, soil surveyors, soil
conservationists, and in regulatory agencies as plant, food, and
grain inspectors. Additional areas of work open to agronomists include
integrated pest management, land appraisal, agricultural finance,
turfgrass management, and the home lawn care industry.
The department offers a minor in agronomy. Students are required
to complete an approved minor program that includes Agron 114, 154,
212, 354, and 6 additional credits, of which a minimum of 3 credits
must be at the 300+ level. A minimum of 15 credits for the agronomy
major and 9 credits for the agronomy minor must be earned at Iowa
State. Students work with an agronomy advisor to select courses
in crops, soils, and meteorology that are appropriate to their career
goals. A list of approved courses is available from an agronomy
advisor.
Students can also design a strong basic science education in crop
science, soil science, agricultural meteorology, or biotechnology
to prepare themselves for science-based jobs, graduate study, or
for research careers.
Graduate Study
The department offers the degrees master of science and
doctor of philosophy, with majors in agricultural meteorology; crop
production and physiology with optional specializations in seed
science and weed science; plant breeding; and soil science with
specialization in soil chemistry, soil fertility, soil management,
soil microbiology and biochemistry, soil morphology and genesis,
or soil physics. Minor work is offered for students with majors
in other departments. A M.S. nonthesis option is available for students
desiring a general degree program with additional coursework and
a written creative component substituting for thesis research. The
nonthesis option is not intended to prepare students for entering
a Ph.D. program.
Graduates have a broad knowledge base germane to their area of study.
They are trained to integrate and apply knowledge to different situations.
Students develop skills in scientific reasoning, organization, and
logical presentation of ideas.
A master of science degree in agronomy designed for the continuing
education of professional agronomists is offered by the department.
The program is taught at a distance using computer-based instructional
media. It is a nonthesis degree requiring completion of a written
creative component.
The department cooperates in the interdepartmental program in professional
agriculture; interdepartmental majors in ecology and evolutionary
biology, genetics, MCDB (molecular, cellular, and developmental
biology), plant physiology, sustainable agriculture, and water resources.
Prerequisite to major work in this department is completion of an
undergraduate degree program with emphasis on agronomic, biological,
and physical sciences. The foreign language requirement, if any,
for the Ph.D. degree is established on an individual basis by the
program of study committee appointed to guide the work of the student.
Courses open for nonmajor graduate credit: 306, 334, 342, 351, 351L,
354, 356, 402, 402I, 404, 406, 421, 434, 473, 473I, 485, 493.
Courses Primarily for Undergraduate Students
Agron 105. Leadership
Experience. Cr. R. F.S.SS. Staff. A participatory experience
in activities or completion of a course that enhances the development
of leadership and group-dynamic skills. See adviser for departmental
requirements.
Agron 110. Professional Development in Agronomy:
Orientation. (1-0) Cr. 0.5. F. Pogranichniy. Orientation
to college life, the profession of agronomy, and the agronomy curriculum.
Agron 114. Principles of Agronomy.
(2-3 to 4 individualized study). Cr. 3. F.S. Mullen. A foundation
course in crop production and soil management principles for the
basic agronomic crops. Includes introductory concepts of plant,
soil, tillage, pest, environmental, and sustainable aspects of crop
production. Off-campus version offered through internet by interactive
computer courseware.
Agron 120. Introduction to Renewable Resources.
(Same as AST 120, Env S 120, NREM 120.) (3-0) Cr. 3. F.S. Overview
of soil, water, plants, and animals as renewable natural resources
in an ecosystem context. History and organization of resource management.
Concepts of integrated resource management.
Agron 154. Fundamentals of Soil Science.
(2-2 to 4 individualized study) Cr. 3. F.S. Off-campus version offered
in Spring semester. Prereq: Chem 163. Manu. Introduction
to physical, chemical, and biological properties of soils, their
formation, classification, and distribution. Use of soil survey
and computer databank information in balancing agronomic, economic,
and environmental concerns in soil management. Credit for only one
of 154, 155, or 156 may be applied toward graduation, not both.
Agron 155. Soils for Horticultural Scientists.
(2-2 to 4 individualized study) Cr. 3. F.S. Prereq: Chem 163.
Restricted to students in Horticulture. Manu. Physical, chemical
and biological properties of natural and manufactured soils. Use
of soil information when producing plants on natural and manufactured
soils. Credit for only one of 154, 155, or 156 may be applied toward
graduation.
Agron 156. Soils for Urban Use. (2-2
to 4 individualized study) Cr. 3. F.S. Restricted to students outside
the College of Agriculture. Manu. Fundamental properties of soils
and their application to urban settings. Development of a site plan
for area of land using data from soil survey and computerized data
bank information. Field trip. Credit for only one of 154, 155 or
156 may be applied toward graduation, not both.
Agron 206. Introduction
to Meteorology. (Same as Mteor 206.) (3-0) Cr. 3. F.S. R.
Taylor or Cervato. Basic concepts in meteorology, including atmospheric
measurements, radiation, stability, precipitation, winds, fronts,
forecasting, and severe weather. Applied topics include global warming,
ozone depletion, El Nino, world climates, weather safety, and atmospheric
optics. Self-study laboratory assignments utilize interactive computerized
exercises, worksheets and computerized real-time forecasting. Self-study
section available to distant education students all semesters.
Agron 210. Professional Development in Agronomy:
Career Planning. (1-0) Cr. 1. F.S. Prereq: Sophomore classification.
Pogranichniy, Sandor. Career planning, résumé and
cover letter preparation, and interviewing techniques. Career orientation
through invited speakers.
Agron 212. Grain and Forage Crops.
(3-2) Cr. 4. F.S. Prereq: 114. Gibson. Production and management
practices for corn, soybean, small grain, and forage crops common
to Midwestern U.S. agriculture. Emphasis on growth and development,
plant characteristics, management practices, crop use, quality,
and problem-solving.
Agron 230. Crop Structure-Function Relationships.
(3-0) Cr. 3. F.S. Prereq: Biol 202. Salvador. Basic principles
concerning the growth, development, and production of crop communities
in relation to their environment.
Agron 260. Soils and Environmental Quality.
(3-0) Cr. 3. F.S. Prereq: 154. Burras. Role of soils in environmental
quality and natural resources management. Emphasis on soil erosion
and conservation, water quality, and environmental planning. Saturday
field trip.
Agron 283. Pesticide Application Certification.
(Same as Ent 283.) See Entomology.
Agron 298. Cooperative Education.
Cr. R each time taken. F.S.SS. Prereq: Permission of department
cooperative education coordinator, sophomore classification.
Required of all cooperative education students. Students must register
for this course prior to commencing each work period.
Agron 306. Use of Weather
Data in Agriculture. (Same as Mteor 306.) (1-1) Cr. 1. S.
Prereq: 206. Arritt. Instrumentation, collection, and analyses
of weather data relative to crop production in the Midwest. Weather
parameters are analyzed using computer applications.Nonmajor graduate
credit.
Agron 310. Professional Development in Agronomy:
Internship. Cr. R. F.S.SS. Staff. Professional work experience
in agronomy. See adviser for departmental requirements.
Agron 317. Principles of Weed Science.
(Same as P M 317, Pl HP 317.) (2-2) Cr. 3. F.S. Prereq: Biol
201 and 202. Gibson, Liebman, Hartzler. Identification, biology,
and ecology of weeds. Principles and practices of integrated weed
management systems. Herbicide mechanisms, classification, and fate
in plants and soils.
Agron 320. Genetics, Agriculture and Biotechnology.
(Same as Gen 320.) (3-0) Cr. 3. F.S. Prereq: Biol 201 and 202.
Transmission genetics with an emphasis on applications in agriculture,
the structure and expression of the gene, how genes behave in populations
and how recombinant DNA technology can be used to improve agriculture.
Credit for graduation will not be allowed for more than one of the
following: Gen 260, 301, 320 and Biol 301 and 301L.
Agron 330. Crop and Seed Identification Laboratory.
(0-4) Cr. 2. S. Prereq: 114. Staff. Identification, agronomic
and binomial classification of crops, weeds, and diseases. Analysis
of crop seed samples for contaminants of weed and other crop seeds.
Agron 331. Intercollegiate Crop Identification,
Seed Analysis and Grain Grading. (0-6) Cr. 2. F. Prereq:
330, permission of instructor. Staff. Intensive training in
crop, weed, and disease identification, seed analysis, and grain
grading for intercollegiate competition in regional and national
crops contests.
Agron 332. Crop Quality, Traits, and Utilization.
(1-2) Cr. 2. S. Prereq: 212, Chem 163. Mullen. Characteristics,
uses, and processing of agronomic crops. Factors affecting quality
and utilization. Commercial grading and evaluation. One 1-day and
one one-half day field trips are required.
Agron 334. Forage Crop Management. (2-0)
Cr. 2. S. Prereq: 114. Wiedenhoeft. Management of forage
crop legume and grass species as related to climate, soils, and
utilization for harvested hay/silage, pasture, and soil conservation.
Production and management concepts applied to yield, quality, stand
persistence, and use of forage species. Nonmajor graduate credit.
Agron 338. Seed Science and Technology.
(Same as Hort 338.) (2-2) Cr. 3. S. Prereq: 114 or Hort 221,
Biol 201. Knapp. Seed production, maturation, dormancy, vigor,
deterioration, and related aspects of enhancement, conditioning,
storage, and quality evaluation. Aspects of the seed industry and
regulation of seed marketing.
Agron 342. World Food Issues: Past and Present.
(Same as Env S 324, FS HN 342, T SC 342, U St 342.) (3-0) Cr. 3.
S. Salvador. World food problems in context of historical development
of agriculture in major cradles of civilization. Emphasis on population
trends and socioeconomic policies to understand disparities between
potential agricultural production and present energy and nutritional
deficiencies in key areas of the developing world. Team projects.
Nonmajor graduate credit.
H. Honors Section. (For students in the University Honors Program
only.)
Agron 351. Turfgrass Establishment and Management.
(Same as Hort 351.) See Horticulture. Nonmajor graduate credit.
Agron 351L. Turfgrass Establishment and Management
Laboratory. (Same as Hort 351L.) See Horticulture. Nonmajor
graduate credit.
Agron 354. Soils and Plant Growth.
(Same as Pl HP 354.) (3-0) Cr. 3. F.S. Prereq: 154 and Biol 109
or 202. Killorn or Loynachan. Effects of chemical, physical,
and biological properties of soils on plant growth, with emphasis
on nutritive elements, pH, organic matter maintenance, and rooting
development. Nonmajor graduate credit.
Agron 354L. Soils and Plant Growth Laboratory.
(Same as Pl HP 354L.) (0-3) Cr. 1. F. S. Prereq: Credit or enrollment
in 354. Henning. Laboratory exercises in soil testing that assess
a soil’s ability to support nutritive requirements for plant
growth.
Agron 356. Soil, Fertilizer, and Water Management.
(3-2) Cr. 4. F. Prereq: 354. Recommended: 114. Polito, Killorn.
Integration of crop, tillage, drainage, erosion, fertility, and
fertilizer information in management decisions. Economic and environmental
implications of these decisions on long-term sustainability. Suitability
and accuracy of soil evaluation methods. Handling characteristics
and soil reactions of organic and mineral fertilizers. An in-depth
farm plan will be developed for a client. Nonmajor graduate credit.
Agron 360. Environmental Soil Science.
(Same as EnSci 360) (2-3) Cr. 3. S. Prereq: Agron 260 or Geol
100 or 201. Burras and Killorn. Application of soil science
to contemporary environmental problems; comparison of the impacts
that different management strategies have on short- and long-term
environmental quality and land development. Emphasis on participatory
learning activities.
Agron 370. Field Experience in Soil Description
and Interpretation. (0-3) Cr. 1. Can be taken four times.
F.S. Prereq: 154 and permission of instructor. Sandor. Description
and interpretation of soils in the field and laboratory, emphasizing
hands-on experience. Evaluation of soil information for land use.
Students may participate in intercollegiate judging contests.
Agron 392. Systems Analysis in Crop and Soil
Management. (2-3) Cr. 3. F.S. Prereq: 230, 354. Wiedenhoeft.
Management strategies at the level of the farm field. Emphasis will
be on participatory learning activities.
Agron 398. Cooperative Education.
Cr. R each time taken. F.S.SS. Prereq: Permission of department
cooperative education coordinator; junior classification. Required
of all cooperative education students. Students must register for
this course prior to commencing each work period.
Agron 402. Watershed Hydrology
and Surficial Processes. (Same as EnSci 402, For 402, Geol
402.) (3-3) Cr. 4. F. Prereq: Credit or enrollment in EnSci 330
or Geol 100 or 201, Math 165 or 181. Simpkins. Examination of
watersheds as systems wherein biological and physical factors control
hydrology, soil formation, and nutrient transport. Laboratory emphasizes
field investigation of watershed-scale processes. Nonmajor graduate
credit.
Agron 402I. Watershed Hydrology and Surficial
Processes. (Same as Ia LL 402I.) See Iowa Lakeside Laboratory.
Nonmajor graduate credit.
Agron 404. Global Change. (Same as
EnSci 404, Env S 404, Mteor 404.). (3-0) Cr. 3. S. Prereq: Four
courses in physical or biological sciences or engineering. Takle.
Recent changes in global biogeochemical cycles and climate; models
of future changes in climate system; impacts of global change on
agriculture, water resources and human health; ethical issues of
global environmental change. Nonmajor graduate credit.
Agron 406. Climate of the Continents.
(Same as Mteor 406.) (2-0) Cr. 2. F. Prereq: Agron/Mteor 206.
Arritt. The major climate controls and how they affect the world
climate. Climate classification. Combining controls and classification
to explain the pattern of climates of the different continents and
the world. Semester project and in-class presentation required.
Nonmajor graduate credit.
Agron 407. Mesoscale Meteorology. (Dual-listed
with 507; same as Mteor 407.) (3-0) Cr. 3. S. Prereq: Math 166
and Mteor 454. Arritt, Gallus. The physical nature and practical
consequences of mesoscale atmospheric phenomena. Mesoscale convective
systems, fronts, terrain-forced circulations. Observation, analysis,
and prediction of mesoscale atmospheric structure.
Agron 410. Professional Development in Agronomy:
Senior Forum. (1-0) Cr. 1. F.S. Prereq: Senior classification.
Staff. Development of an appropriate content for professionalism.
Topics include professional certification, ethics, and maintaining
an active network of information sources and professional contacts
in support of lifelong learning. Student interpretation, writings,
presentations, and discussions.
Agron 421. Introduction to Plant Breeding.
(3-0) Cr. 3. F. Prereq: 320 or Biol 301. Campbell. Breeding
methods used in the genetic improvement of self-pollinated, cross-pollinated
and asexually reproducing agronomic crops. Applications of molecular
techniques and biotechnological advancements as breeding tools in
the development of improved cultivars and transgenic plants. Nonmajor
graduate credit.
Agron 434. Forage Utilization. (2-0)
Cr. 2. F. Prereq: 334. Barnhart. Systems of forage utilization
including grazing, hay, and silage. Nutritional chemistry of forage
plants and the genetic, environmental, and post-harvest factors
that influence their use. Students enrolling for graduate credit
will be expected to complete an additional class project. Nonmajor
graduate credit.
Agron 446. World Agronomic Systems.
(3-0) Cr. 3. S. Prereq: 114, 154, 206. Muenchrath. Interdisciplinary
study and comparison of agricultural systems around the world, including
analysis of biophysical, social, economic, and political determinants
of the systems. Emphasis on the interrelationships among system
determinants. Analysis of system constraints and solution strategies.
Evaluation of the productivity and sustainability of the systems.
Team project and report.
Agron 450. Issues in Sustainable Agriculture.
(Same as Env S 450.) (2-0) Cr. 2. F. Salvador. Agricultural science
as a human activity; contemporary agricultural issues from agroecological
perspective. Comparative analysis of intended and actual consequences
of development of industrial agricultural practices.
Agron 457. Agronomic Applications of Site-Specific
Management. (2-2) Cr. 3. F. Prereq: 212, 354; Stat 101
or 104 or 105. Staff. Introduction and exploration of agronomic
applications of site-specific management for improved resource management
and environmental quality. Emphasis on developing a better understanding
of the evolving technologies that are applicable to production agriculture
and how these technologies can contribute to an improved environment.
Agron 459. Environmental Soil and Water Chemistry.
(Dual-listed with 559; same as EnSci 459.) (3-0) Cr. 3. Alt. F.,
offered 2003. Prereq: Agron 354 or EnSci 401, Chem 210 or 211.
An introduction to the chemical properties of soils, chemical reactions
and transformations occurring in the soils and their impact on the
environment. Topics include composition of soils, acid-base equilibria,
buffer systems, mineral dissolution and precipitation, speciation,
ion exchange, redox reactions, adsorption phenomena, soil pollution
and chemical-equilibria computer programs.
Agron 460. Agroforestry Systems. (Dual-listed
with 560; same as For 460.) See Forestry.
Agron 473. Soil Genesis and Landscape Relationships.
(Same as EnSci 473.) (2-3) Cr. 4. S. Prereq: 154 or 402.
Sandor. Relationships between soil formation, geomorphology, and
environment. Soil description, classification, geography, mapping,
and interpretation for land use. Two weekend field trips. Nonmajor
graduate credit. Credit for only 473 or 473I may be applied for
graduation, not both.
Agron 473I. Soil Genesis and Landscape Relationships.
(Same as EnSci 473I, Ia LL 473I.) Cr. 4. Alt. SS. offered
2004 at Lakeside Laboratory. Prereq: Agron 154 or 402 or 402I.
Burras. Relationships between soil formation, geomorphology, and
environment. Soil description, classification, geography, mapping,
and interpretation for land use. Credit for only 473 or 473I may
be applied for graduation, not both. Nonmajor graduate credit.
Agron 485. Soil Microbial Ecology.
(Same as EnSci 485, Micro 485.) (2-3) Cr. 3. F. Prereq: 154 or
402, Micro 201 (Micro 203 recommended). Loynachan. The living
organisms in the soil and what they do. Emphasis on soil-plant-microbial
relationships and environmental issues. Nonmajor graduate credit.
Agron 490. Independent Study. Cr.
1 to 3 each time taken; 4 cr. maximum allowed toward the total of
128 credits required for graduation. F.S.SS. Prereq: Junior or
senior classification with at least 8 credits in agronomy; permission
of instructor in specialty area after consultation. Selected
studies in crops, soils, or agricultural meteorology according to
the needs and interests of the student.
H. Honors
Agron 491. Seed Science Internship
Experience. (Same as AST 491, Hort 491.)
Cr. 1 to 2. May be repeated once. F.S.SS. Prereq: 338, advanced
approval and participation of employer and instructor. Staff.
A professional work experience and creative project for seed science
secondary majors. The project requires the prior approval and participation
of the employer and instructor. The student must submit a written
report.
Agron 492. Agronomic Issues: Science,
Policy, and Resource Management. (2-0)
Cr. 2. F.S. Prereq: Senior classification. Knapp. Objective
investigation of current agricultural issues from multiple perspectives.
Students will develop positions on or solutions to current agricultural
issues by investigating the scientific, technical, economic, environmental,
and social ramifications of agriculture and agricultural policy.
Agron 493. Workshop in Agronomy.
Cr. arr each time taken, maximum of 4. Prereq: Permission of
instructor. Staff. Workshop experience in crops, soils, or agricultural
meteorology. Nonmajor graduate credit.
Agron 495. Agricultural Travel Course
Preparation. (0-1) Cr. R. May be repeated.
F.S. Prereq: Permission of instructor. Limited enrollment.
Students enrolled in this course intend to register for Agron 496
the following term. Topics will include the agricultural industries,
climate, crops, culture, economics, geography, history, livestock,
marketing, soils, and preparation for travel to locations to be
visited.
Agron 496. Agricultural Travel Course.
Cr. arr. May be repeated. Prereq: Permission of instructor.
Limited enrollment. Tour and study of production methods in major
crop and livestock regions of the world. Influence of climate, economics,
geography, soils, landscapes, markets, and other factors on crop
and livestock production. Location and duration of tours will vary.
Tour expenses paid by students. Check with department for current
offerings.
A. International Tour
B. Domestic Tour
Agron 497. Agroecology Summer Field
Course. Cr. 3. SS. Prereq: Jr. or Sr.
classification with at least 8 credits in Agronomy. A one-week
intensive summer class, offered off-campus. Student will visit farms
within the Midwest and analyze the sustainability of each farm.
Agron 498. Cooperative Education.
Cr. R each time taken. F.S.SS. Prereq: Permission of department
cooperative education coordinator; senior classification. Required
of all cooperative education students. Students must register for
this course prior to commencing each work period.
Courses Primarily for
Graduate Students, open to qualified undergraduate students
Agron 500. Orientation Seminar.
(2-0). Cr. 1. F. Prereq: International agronomy graduate students
only. Pesek and staff. An introduction to Iowa and U.S. agriculture
for international scholars in agronomic majors. Field trips when
possible. Departmental role in the functioning of research, teaching,
and extension in fulfilling the charge given the land-grant university.
Offered on a satisfactory-fail grading basis only.
Agron 501. Crop Growth and Development.
(2-0) Cr. 2. F. Prereq: 114, Math 140, Chem 163, Biol 109.
Muenchrath, Westgate. Physiological processes in crop growth, development
and yield: photosynthesis, respiration, water relations, mineral
nutrition, assimilate partitioning, seedling vigor, light interception
and canopy growth, root growth, reproduction and yield. Required
course for the Master of Science in Agronomy degree program. Restricted
to graduate students enrolled in degree programs at Iowa State University.
Agron 502. Chemistry, Physics, and
Biology of Soils. (2-0) Cr. 2. F. Prereq:
114, 154, Biol 109, Chem 163, and Math 140. Burras. Soil chemical,
physical, and biological properties that control processes within
the soil, their influence on plant/soil interactions, and soil classification.
Basic concepts in soil science and their applications. Required
course for the Master of Science in Agronomy degree program. Restricted
to graduate students enrolled in degree programs at Iowa State University.
Agron 503. Climate and Crop Growth.
(2-0) Cr. 2. F. Prereq: 114 and Math
140. Taylor. Applied concepts in climate and agricultural meteorology
with emphasis on the climate-agriculture relationship and the microclimate-agriculture
interaction. Required course for the Master of Science in Agronomy
degree program. Basic meteorological principles are also presented
to support these applied concepts. Restricted to graduate students
enrolled in degree programs at Iowa State University.
Agron 504. Global Change.
(Dual-listed with 404; same as Mteor 504.) See Geological and Atmospheric
Sciences, Meteorology.
Agron 505. Biometeorology. (Same
as Mteor 505.) (3-0) Cr. 3. F. Prereq: Agron/Mteor 206. Arritt.
Energy, mass and momentum exchange near the ground. Radiation, turbulence,
conductance and evaporation as components of the heat balance. Temperature,
wind and humidity conditions in the microclimate. Modification of
the microclimate. Computer modeling of biophysical processes. Semester
project required.
Agron 507. Mesoscale Meteorology.
(Dual-listed with 407; same as Mteor 507.) (3-0) Cr. 3. S. Prereq:
Math 166 and Mteor 454. Arritt, Gallus. The physical nature
and practical consequences of mesoscale atmospheric phenomena. Mesoscale
convective systems, fronts, terrain-forced circulations. Observation,
analysis, and prediction of mesoscale atmospheric structure. Semester
project and in-class presentation required.
Agron 508. Biophysical Crop Ecology.
(3-0) Cr. 3. Alt. S., offered 2004. Prereq: 505. Taylor.
Principles of resource capture (light and water) applied to growth
and development. Ecological implications of radiation, temperature,
moisture, and the biological properties of size, shape, resistance
to water vapor loss, and absorptivity to solar and thermal radiation.
Physiological stress in the soil, plant, atmosphere continuum.
Agron 509. Agroecosystem Analysis.
(Same as Anthr 509, Soc 509, SusAg 509.)
(3-0) Cr. 3. F. Prereq: 6 credits in social sciences, 6 credits
in natural, biological or engineering sciences and senior or above
classification. Salvador, Butler. Field study of commercial
farming systems within the context of global energy flows and biogeochemical
cycles, including ecological, agronomic, and social perspectives.
Agron 511. Crop Improvement.
(2-0) Cr. 2. S. Prereq: 114, Math 140, Chem 163, Biol 109.
Campbell. Basic principles in the genetic improvement of crop plants.
Methods of cultivar development in self-pollinated and cross-pollinated
crop species. Required course for the Master of Science in Agronomy
degree program. Restricted to graduate students enrolled in degree
programs at Iowa State University.
Agron 512. Soil-Plant Environment.
(2-0) Cr. 2. S. Prereq: 502. Recommended 501. Loynachan.
Soil properties and their impact on soil/plant relationships. Soil
structure, aeration, moisture, and nutrients will be discussed in
the context of soil fertility and environmental quality management.
Required course for the Master of Science in Agronomy degree program.
Restricted to graduate students enrolled in degree programs at Iowa
State University.
Agron 513. Quantitative Methods for
Agronomy. (2-0) Cr. 2. S. Prereq: Math
140, Stat 104. Heuchelin. Quantitative methods for analyzing
and interpreting agronomic information. Principles of experimental
design, hypothesis testing, analysis of variance, regression, correlation,
and graphical representation of data. Use of spreadsheets for manipulating,
analyzing, and presenting data. Required course for the Master of
Science in Agronomy degree program. Restricted to graduate students
enrolled in degree programs at Iowa State University.
Agron 514. Integrated Pest Management.
(2-0) Cr. 2. SS. Prereq: 114, 501, Math 140, Chem 163, Biol 109.
Recommended: 502, 503. Heuchelin. Principles and practices of weed
science, entomology, and plant pathology applied to crop production
systems. Biology, ecology, and introductory principles of crop pest
management. Required course for the Master of Science in Agronomy
degree program. Restricted to graduate students enrolled in degree
programs at Iowa State University.
Agron 515. Integrated Crop and Livestock
Production Systems. (Same as A E 515,
SusAg 515, An S 515.) (3-0) Cr. 3. Alt. F., offered 2003. Prereq:
509. Richard, Russell, Wiedenhoeft. Managing productivity and
minimizing ecological impacts of agricultural systems by understanding
nutrient cycles, crop residue and manure management, and multi-species
interactions. Consideration of crop and livestock production within
landscapes and watersheds. The course includes a significant off-campus
component with teams analyzing Iowa farms.
Agron 516. Crop Physiology.
(3-0) Cr. 3. S. Prereq: Bot 320. Westgate. Physiological
and biochemical processes determining crop growth, reproductive
development, and grain yield.
Agron 517. Weed Biology and Ecology.
(3-0) Cr. 3. Alt. S., offered 2004. Prereq: 317, Bot 484.
Dekker. Weed evolution and biodiversity for exploitation of disturbed
and managed habitats. Selection and adaptation of weeds in agronecosystems:
soil weed seed banks, population shifts, and crop-weed interactions.
The genetic basis of colonizing plant species.
Agron 519. Herbicide Physiology and
Biochemistry. (2-0) Cr. 2. Alt. S., offered
2005. Prereq: 317; Bot 320. Owen. Herbicide mechanisms of
action, selectivity, uptake, and translocation. Specific sites of
herbicide action as they affect plant physiology. Herbicide resistance
in weeds and crops. Implications of herbicides on weed management.
Agron 521. Principles of Cultivar
Development. (3-0) Cr. 3. F. Prereq:
421; Stat 401. Brummer. Theoretical and practical analysis of
alternative breeding methods to improve crop plants. Strategies
to incorporate germplasm resources, develop populations, maximize
genetic gain, and use marker-assisted selection. Relationship of
breeding methods to commercial seed production.
Agron 522. Field Methods in Plant
Breeding. (0-6) Cr. 2. SS. Prereq:
521. Staff. Field experience in planning and conducting plant
breeding research for cross-pollinated and self-pollinated crops.
Offered on a satisfactory-fail basis only.
Agron 526. Field Plot Technique.
(3-0) Cr. 3. S. Prereq: Stat 401. Moore. Planning experiments
for agricultural research, analysis of data, and concepts in data
interpretation.
Agron 527. Plant Genetics.
(3-0) Cr. 3. S. Prereq: Gen 410. Bhattacharyya. Fundamental
genetic and cytogenetic concepts from plant perspective including
recombination, linkage analysis, genetic and molecular mapping,
male sterility, self incompatibility, apomixis, and polyploid evolution.
Agron 530. Ecologically Based Pest
Management Strategies. (Same as SusAg
530, Ent 530, Pl P 530.) (3-0) Cr. 3. Alt. F., offered 2004. Prereq:
SusAg 509. Liebman, Obrycki, Gleason. Durable, least-toxic strategies
for managing weeds, pathogens, and insect pests, with emphasis on
underlying ecological processes.
Agron 531. Crop Ecology and Management.
(2-0) Cr. 2. F. Prereq: 501, 502, 503.
Muenchrath. Environmental factors affecting crop growth and yield.
Climatic and edaphic adaptation of crop species. Management systems
for crops with an emphasis on row and forage crops. Required course
for the Master of Science in Agronomy degree program. Restricted
to graduate students enrolled in degree programs at Iowa State University.
Agron 532. Soil Management.
(2-0) Cr. 2. F. Prereq: 501, 503, 512. Recommended 513. Cruse.
Evaluates the impact of various soil management practices on soil
and water resources. Combines and applies basic information gained
in Agron 502 and Agron 512. Emphasizes the agronomic, economic,
and environmental effects of soil management strategies. Required
course for the Master of Science in Agronomy degree program. Restricted
to graduate students enrolled in degree programs at Iowa State University.
Agron 533. Crop Protection.
(2-0) Cr. 2. F. Prereq: 514. Heuchelin. Integrated management
systems for important crop pests. Cultural, biological and chemical
management strategies applicable to major crops grown in the Midwest.
Required course for the Master of Science in Agronomy degree program.
Restricted to graduate students enrolled in degree programs at Iowa
State University.
Agron 537. Environmental Stress Physiology.
(Same as Hort 537.) See Horticulture.
Agron 538. Seed Physiology.
(2-0) Cr. 2. Alt F., offered 2004. Prereq: 338; BBMB 301 or Chem
331. Goggi. Physiological aspects of seed development, maturation,
longevity, dormancy, and germination. Emphasis on current literature
and advanced methodology.
Agron 541. Applied Agricultural Meteorology.
(2-0) Cr. 2. F.S.SS. Available on and off campus. Prereq: 206
or upper division Biological Science. Taylor. Applied concepts
in agricultural meteorology. Basic concepts of weather and of crop/climate
relationships influencing production, protection, yield and associated
production risk factors. Credit for only one of 503 or 541 may be
applied toward graduation, not both. Self study sections are available
to resident and to distant education students all semesters.
Agron 542. Advanced Crop Management.
(2-0) Cr. 2. Off campus, offered as demand warrants. Prereq:
230. Staff. Basic concepts in plant-soil-climate relationships
with emphasis on recent advances in crop culture and management.
Designed for the master of agriculture program.
Agron 544. Soil Management.
(2-0) Cr. 2. Off campus, offered as demand warrants. Prereq:
354. Blackmer, Cruse. Basic concepts of soil management with
emphasis on how various tillage and fertilization practices influence
plant growth. Designed for the master of agriculture program.
Agron 546. Organizational Strategies
for Diversified Farming Systems. (Same
as Soc 546, Hort 546, SusAg 546.) (3-0) Cr. 3. Alt. S., offered
2004. Prereq: 509. Bell, Liebman. Organization and operation
of complex, diversified farming systems. Topics include systems
analysis, ecological diversity, agronomic diversity, economic diversity,
social diversity, analytical frames for evaluating farming system
sustainability, and problem-solving. Participation in several field
trips to Iowa farms is required.
Agron 550. Advanced Issues in Sustainable
Agriculture. (2-2) Cr. 3. F. Salvador.
Prereq: Two of 114, 154, 212, 516, and permission of instructor.
Agricultural science as a human activity; contemporary agricultural
issues for agroecological perspective. Comparative analysis of intended
and actual consequences of development of industrial agricultural
practices. Individual study and group analysis of environmental
literature and scientific reports.
Agron 551. Growth and Development
of Perennial Grasses. (Same as Hort 551.)
See Horticulture.
Agron 553. Soil-Plant Relationships.
(3-0) Cr. 3. F. Prereq: 354. Blackmer. Composition and properties
of soils in relation to the nutrition and growth of plants.
Agron 554. Advanced Soil Management.
(2-0) Cr. 2. Alt. F., offered 2003. Prereq: 354; Math 165.
Cruse. Implications of soil management on the soil environment and
root activity. Effect of soil physical properties on soil erosion.
Agron 555. Soil Clay Mineralogy.
(Same as Geol 555.) (3-0) Cr. 3. Alt. F., offered 2003. Prereq:
473, Chem 164. Recommend: Geol 311. Thompson. Structure and
behavior of clay minerals in soil environments, with emphasis on
layer silicates and on Fe, Mn, and Al oxides.
Agron 555L. Soil Clay Mineralogy Laboratory.
(Same as Geol 555L.) (0-3) Cr. 1. Alt. F., offered 2003. Prereq:
Credit or enrollment in 555. Thompson. Application of X-ray
diffraction, thermal analysis, infrared spectroscopy, and chemical
analyses to identification and behavior of clay minerals in soils.
Agron 558. Laboratory Methods in Soil
Chemistry. (2-3) Cr. 3. Alt. F., offered
2003. Prereq: 354 and Chem 210 or 211. Tabatabai. Experimental
and descriptive inorganic and organic analyses. Operational theory
and principles of applicable instruments, including spectrophotometry,
atomic and molecular absorption and emission spectroscopy, mass
spectrometry, X-ray diffraction and fluorescence, gas and ion chromatography,
and ion-selective electrodes.
Agron 559. Environmental Soil and
Water Chemistry. (Dual-listed with 459.)
(3-0) Cr. 3. Alt. F., offered 2003. Prereq: 354, Chem 210.
Tabatabai. An introduction to the chemical properties of soils,
chemical reactions and transformations occurring in the soils and
their impact on the environment. Topics include composition of soils,
acid-base equilibria, buffer systems, mineral dissolution and precipitation,
speciation, ion exchange, redox reactions, adsorption phenomena
and soil pollution.
Agron 560. Agroforestry Systems.
(Dual-listed with 460; same as For 560.) See Forestry.
Agron 561.
Population and Quantitative Genetics for Breeding. (Same as An S
561.) (4-0) Cr. 4. F. Prereq: Stat 401. Jannink. Population
and quantitative genetics for plant and animal breeding. Topics
include: forces that change gene frequency, covariance between relatives,
response to artificial selection, inbreeding depression, heterosis,
cross-breeding, genotype-by-environment interaction, linkage analysis,
mapping of quantitative trait loci, and marker assisted selection.
Agron 565.
Professional Practice in the Life Sciences. (Same as PL P 565.)
See Plant Pathology.
Agron 575. Soil Morphology, Genesis,
and Classification. (3-0) Cr. 3. Alt.
F., offered 2004. Prereq: 459, 473; Geol 100. M. Thompson.
Synthesis of how landscapes, water, organisms, and chemical reactions
determine the morphology, mineralogy and spatial distribution of
soils.
Agron 577. Soil Physics.
(3-0) Cr. 3. S. Prereq: 354. Recommended: Math 166. Horton.
The physical soil system: the soil components and their physical
interactions; transport processes involving water, air, and heat.
Agron 578. Laboratory Methods in Soil
Physics. (0-3) Cr. 1. S. Prereq: 577
concurrent. Horton. Methods of measuring soil physical properties
such as texture, density, and water content, and transport of heat,
water, and gases.
Agron 585. Soil Microbiology and Biochemistry.
(Same as Micro 585.) (2-0 or 2-3) Cr. 2 or 3. Alt. S., offered 2004.
Prereq: 485, one course in biochemistry. Loynachan. Ecological
and environmental considerations of soil microorganisms, organic
matter, enzymes, carbon, and other nutrient cycles. Laboratory emphasizes
creative component.
Agron 590. Special Topics.
Cr. arr. Prereq: 15 credits in agronomy. Literature reviews
and conferences on selected topics in crops, soils, or agricultural
meteorology according to needs and interest of student.
Agron 591. Agronomic Systems Analysis.
(3-0) Cr. 3. S. Prereq: 511, 513, 531, 532, 533. Wiedenhoeft.
Analysis of cropping systems from a problem-solving perspective.
Case studies will be used to develop the students’ ability
to solve agronomic problems. Required course for the Master of Science
in Agronomy degree program. Restricted to graduate students enrolled
in degree programs at Iowa State University.
Agron 592. Current Issues in Agronomy.
(3-0) Cr. 3. S. Prereq: 501, 503, 511, 512, 514. Knapp. Study
and discussion of topics of current interest to the field of agronomy.
While Agron 591 deals with agronomics at the farm and landscape
level, Agron 592 seeks to address issues on a broader scale including
off-farm agricultural impacts. Required course for the Master of
Science in Agronomy degree program. Restricted to graduate students
enrolled in degree programs at Iowa State University.
Agron 593. Workshop in Agronomy.
Cr. arr each time taken. Prereq: Graduate classification.
A. Crops
B. Soils
C. Agricultural Meteorology
D. Microcomputers in Agronomy
E. Seed Science
F. Weed Science
G. Agronomy Field Laboratory
Agron 594. Workshop in Agronomy.
(0-1) Cr. 1. SS. Prereq: 501, 502, 503, 514 (or current enrollment).
Recommended: 511, 512, 513. Heuchelin. Hands-on field and laboratory
experience including integrated pest management, climatology, soils,
crops, and statistics. Required course for the Master of Science
in Agronomy degree program. Restricted to graduate students enrolled
in degree programs at Iowa State University.
Agron 599. Creative Component.
Cr. arr. Prereq: Nonthesis M.S. option only. A written report
based on research, library readings, or topics related to the student’s
area of specialization and approved by the student’s advisory
committee.
A. Agricultural Meteorology
B. Crop Production and Physiology
C. Plant Breeding
D. Soil Chemistry
E. Soil Fertility
F. Soil Management
G. Soil Microbiology and Biochemistry
H. Soil Morphology and Genesis
I. Soil Physics
K. Seed Science
L. Weed Science
M. Agronomy
Courses for Graduate Students
Agron 600. Seminar.
(1-0) Cr. 1 each time taken. Reports and discussion of recent literature
and research.
A. Plant Breeding. M. Lee (F); K. Lamkey (S).
B. Soils. F.S. Staff.
C. Crop Production and Physiology. F.S. Staff. 600C offered on a
satisfactory-fail grading basis only.
Agron 609. Agricultural Meteorology
Conference. (1-0) Cr. 1 each time taken.
F.S.SS. Prereq: Permission of instructor. Staff. Literature
reviews and conferences with instructor on special problems relating
to agricultural meteorology, beyond the scope of current courses
offered.
Agron 616. Advanced Topics in Crop
Physiology and Biochemistry. (4-0) Cr.
4. Alt. S., offered 2004. Prereq: 516; Bot 511, 513; BBMB 404;
permission of instructor. Westgate. An in-depth treatment of
physiological, biochemical and molecular processes and regulating
plant growth and development. Emphasis on individual study followed
by in-class presentations and discussion.
Agron 621. Advanced Plant Breeding.
(3-0) Cr. 3. S. Prereq: 521, 526, 561; Gen 410. Lamkey. Estimation
and interpretation of genetic effects and variances of plant populations,
analysis of mating designs, heritability estimation, intra- and
interpopulation selection methods, prediction of genetic gain, inbreeding
and heterosis, classification and development of parental materials,
selection indices, and combining ability analysis.
Agron 625. Genetic Strategies in Plant
Breeding. (3-0) Cr. 3. Alt. S., offered
2005. Prereq: 521, Gen 410, Bot 545. Lee. Evaluation of genetic,
molecular, and cellular approaches to crop improvement; gene transfer
methods. Application and role of basic plant biology in breeding
programs and processes; genome structure and function, gene isolation,
expression, regulation, and modification. Integration of molecular
and cellular methods in breeding strategies; analysis of alternative
breeding methods, regulatory and ethical issues.
Agron 629. Colloquium in Plant Breeding
and Cytogenetics. (1-0) Cr. 1 each time
taken. Alt. S., offered 2004. Prereq: Gen 410 and permission
of instructor. Peterson. Presentation of papers and informal
discussion of related literature in plant breeding and cytogenetics.
Agron 634. Forage Research Methodology.
(2-0) Cr. 2. Alt. F., offered 2004. Prereq: 434, Stat 402 or
equivalent. Staff. Research methodology used to evaluate forage
production and quality. Advanced concepts in the design and analysis
of forage experiments.
Agron 655. Advanced Soil Fertility.
(2-0) Cr. 2. Alt. S., offered 2005. Prereq: 553. Blackmer.
Evaluation of soil fertility and fertilizers; theory and applications.
Agron 658. Environmental Surface Chemistry.
(3-0) Cr. 3. Alt. S., offered 2005. Prereq:
559 or 555, Chem 321, and 322. Principles of surface and colloidal
chemistry applied to minerals and organic matter in soils, sediments
and aquifers. Emphasis on understanding, control and mathematical
description of interactions at the solid/liquid interface relevant
to movement of agrochemicals, heavy metals and organic pollutant
chemicals in the environment.
Agron 675. Advanced Soil Genesis and
Classification. (2-0) Cr. 2. Alt. S.,
offered 2005. Prereq: 575. Fenton. Processes, reactions,
and theories in soil formation; landscape evolution; principles
of soil classification.
Agron 677. Advanced Soil Physics.
(2-0) Cr. 2. Alt. F., offered 2004. Prereq: 577; Math 266, 267.
Recommended: Com S 207. Horton. The flow and distribution of water,
chemicals, and heat in soils. Physical principles and applications.
Agron 685. Advanced Soil Biochemistry.
(Same as Micro 685.) (2-0) Cr. 2. Alt. S., offered 2004. Prereq:
585. Tabatabai. Chemistry of soil organic matter and biochemical
transformations brought about by microorganisms and enzymes in soils.
Agron 696. Seminar in Plant Physiology
and Molecular Biology. (Same as Bot 696.)
See Botany.
Agron 698. Agronomy Teaching Practicum.
Cr. 1 to 2 each time taken. F.S.SS. Prereq: Graduate classification
in agronomy and permission of instructor. Staff. Graduate student
experience in the agronomy teaching program. Offered on a satisfactory-fail
grading basis only.
Agron 699. Research.
A. Agricultural Meteorology
B. Crop Production and Physiology
C. Plant Breeding
D. Soil Chemistry
E. Soil Fertility
F. Soil Management
G. Soil Microbiology and Biochemistry
H. Soil Morphology and Genesis
I. Soil Physics
J. Plant Physiology
K. Seed Science
L. Weed Science
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