1000. BASIC CROP SCIENCE (4). LEC. 3, LAB. 2. Basic agronomic principles involved in classification, growth, structure and soil-plant relationships of field crops. Emphasis on the influence of man and environment on crop growth, and the local and global importance of crop production in world food production. Fall, Spring.

2040. INTRODUCTION TO SOILS (4). LEC. 3, LAB. 2. Pr., CHEM 1010 and CHEM 1011. For non-majors only. Soil development, morphology, chemical properties, fertility and tillage as related to crop growth. Credit will not be given for both AGRN 2040 and 3040. Fall, Spring.

3040. BASIC SOILS(4).LEC. 3, LAB. 2. Pr., CHEM 1040 AND 1041. Formation, classification, composition, properties, management, fertility and conservation of soils in relation to the growth of plants. Credit will not be given for both AGRN 2040 and 3040. Spring, Summer, Fall.

3100. SOILS IN AGRICULTURAL AND EARTH SYSTEMS(4).LEC. 3, LAB. 2. Pr., GEOL 1100, CHEM 1110. The role of the soils as key components in changing earth and agricultural systems. Intended for those who will teach earth science at the middle school level. Credit will not be given for AGRN 3100 and either AGRN 2040 or AGRN 3040. Spring, Summer, Fall.

3120. PRINCIPLES OF WEED SCIENCE(4). LEC. 3, LAB. 2., Pr., BIOL 1020 and BIOL 3100. Weed identification and biology, methods of weed management and classification of herbicides and how they are used in weed control. laboratory subjects are weed identification and sprayer calibration. Fall.

3150. TURFGRASS MANAGEMENT(4). LEC. 3, LAB. 2., Pr., BIOL 1020. The management of recreational and home area turfgrass will be studied including the establishment and maintenance of turf and the effect of light, traffic, soil fertility and water on its growth. Fall.

3920. AGRONOMY AND SOILS INTERNSHIP (3). INT. 3. Pr., Departmental approval. Practical experience under the supervision of an approved employer and the department. Internship may be in the areas of production, business, turf or science.

3970. PROBLEMS N WEED SCIENCE(2).IND. 2. Pr., departmental approval. Conferences, problems and assigned reading in weed science. Spring.

4000. ADVANCED CROP PRODUCTION (3).EC. 3. Pr. AGRN 1000 or BIOL 1030 and eithr AGRN 2040 or AGRN 3040. Application, expansion and integration of principles from undergraduate agricultural, biological and physical sciences courses in the management of crop production systems with emphasis on discussion and problem-solving. Spring.

4010. FORAGE PRODUCTION AND UTILIZATION (3).LEC. 3. Pr., junior standing. Grass and legume forage crops. The crops are considered from the standpoint of (a) pasture crops, (b) hay and silage crops, (c) soil improving crops. Spring.

4200. SOIL JUDGING (02).LEC. 1, LAB. 4. Pr., AGRN 2040 AGRN 3040. Description, evaluation and interpretation of soil-profile characteristics. Fall.

4970. SPECIAL PROBLEMS(1-3). IND. 1. Pr., departmental approval, junior standing. Work under the direction of a staff member on special problems in crop, soil or weed science. Course may be repeated for a maximum of 3 credit hours.

6000. SOILS AND ENVIRONMENTAL QUALITY(3). LEC. 3. Pr., AGRN 3040. Role of soils in biogeochemical cycling of major elements and compounds of environmental concern; interactions of pollutants with soils and aquatic and atmospheric environments; methods to minimize or correct pollution; risk assessment. Fall.

6020. NUTRIENT MANAGEMENT (3). LEC. 3. Pr., AGRN 2040 or AGRN 3040. Lectures and problems illustrate principles of nutrient management as related to soil or growth media, plant, fertilizer practices, management systems and environment. required for all students majoring in Agronomy and Soils. Spring.

6060. SOIL MICROBIOLOGY(4). LEC. 3, LAB. 2. Pr., BIOL 3200. Ecology, physiology, and biochemistry of soil microorganisms with emphasis on soil microbial processes that are important to environmental quality and soil productivity. Spring.

6080. SOIL RESOURCES AND CONSERVATION(4). LEC. 3, LAB. 2. Pr., AGRN 2040 or AGRN 3040. Soils as a natural resource for land-use planning; their use and management for sustainable crop production, urban and industrial development and ecosystem protection. Fall.

6100. METHODS OF PLANT BREEDING (3). LEC. 3. Pr., BIOL 3000. Genetic principles related to crop improvement including modes of reproduction, qualitative vs. quantitative traits, role of environment and heritability. Breeding methods including pedigree selection, backcross and recurrent selection. Fall.

6150. SOIL MORPHOLOGY (4). LEC. 3, LAB. 2. Pr., AGRN 3040. Physical, chemical and mineralogical properties of soils are studied in relation to their classification for engineering and agricultural uses. Spring.

6160. ADVANCED TURFGRASS MANAGEMENT (3). LEC. 3. Pr., AGRN 3040, AGRN 3150, BIOL 3100 or BIOL 6130. Factors affecting the turfgrass plant as a component of a dynamic community. Influence of soil chemical and physical conditions, managment practices and climate are discussed. Theoretical and practical aspects of turfgrass management practices are discussed along with design and construction of golf courses and other athletic purpose turf areas. Spring.

6300. SOIL CHEMISTRY (4).LEC. 2, LAB. 4. Pr., AGRN 3040. An introduction to the basic soil chemical properties of mineral composition, weathering, absorption, cation exchange, acidity, alkalinity, salinity and soil reactions with fertilizers, pesticides and heavy metals. Spring.

7080. EXPERIMENTAL METHODS (3). LEC. 3. Pr., STAT 7000. Experimentation in the agricultural sciences including experimental techniques, interpretation of research data, use of library references and preparation of publications. Problems, assigned readings and lectures. Summer.

7120. CYTOLOGY AND CYTOGENETICS (4). LEC. 2, LAB. 4. Pr., BIOL 3000. Cell structure and function with emphasis on cell reproduction and factors contributing to the evolution of organisms. Fall.

7140. CHEMISTRY AND USE OF HERBICIDES IN CROP PRODUCTION (4). LEC. 3, LAB. 2. Pr., CHEM 1040. Principles and use of herbicides in agronomic crops. Methods of herbicide application, including time, incorporation and formulation, the fate of herbicides in soil and the ecological impact on succeeding plant species. Fall.

7150. SEMINAR IN GENETICS (1). SEM. 1. Pr., BIOL 3000. Reports by students and staff members on current research and literature in the field of genetics. Spring.

7170. ADVANCED PLANT BREEDING (3). Pr., AGRN 7160. Estimation and interpretation of genetic variance components, heritability, selection response, yield stability indices and their effect on choice of breeding method. Recurrent selection theory and breeding for resistance to plant stresses. Spring.

7180. CROP ECOLOGY (3). Pr., BIOL 6130 and AGRN 3040. Analysis of structure and function of crop and pasture farming systems. Integrative approach with emphasis on systems, concepts, production processes and resource management. Topics include current trends, views and problems of population, food supply and technology in agriculture. Spring.

7190. ADVANCED FORAGE MANAGEMENT AND RESEARCH METHODS (3). LEC. 3. Pr., AGRN 4010. Principles involved in successful establishment, maintenance and management of crops used for grazing, hay and silage, and research methods related to this field. Field trips will be made to research stations and private farms to observe management practices. Spring.

7250. CROP PHYSIOLOGY (3).LEC. 3. Pr., BIOL 3100, CHEM 2080. Integrates principles of plant physiology, biochemistry, ecology and genetics as they relate to plant growth and development and crop yield. The effect of management practices and abiotic stress on plant growth and development will be discussed. Fall.

7260. SPATIAL STATISTICAL METHODS IN AGRONOMY (2). Pr., STAT 7000 or departmental approval. Principles and techniques involved in the description and estimation of spatial data. Emphasis on methods used to describe the spatial behavior of variables. (Cross listed with STAT 7260).

7540. PRINCIPLES OF PLANT NUTRITION (3). Pr., AGRN 6020. Processes of nutrient flux to plant roots growing in soil. Chemistry and properties of soils in relation to the nutrition and growth of plants. Summer.

7550. SOIL AND PLANT ANALYSIS (4). LEC. 1, LAB. 6. Pr., CHEM 3050, AGRN 6020. Principles, methods and techniques of quantitative chemical analysis of soils and plants applicable to soil science. Fall.

7560. CLAY MINERALOGY (4).LEC. 3, LAB. 2. Crystal structure and properties of the important clay size minerals of soils and clay deposits combined with identification techniques involving x-ray diffraction and spectroscopy, differential thermal analysis, electron microscopy, specific surface analysis and infrared absorption. Fall

7590. SOIL PHYSICS (4).LEC. 4. Pr., AGRN 3040. Lectures, laboratory exercises and demonstrations to illustrate fundamental physical properties of soils. Introduction to flow and transport phenomena through soils. Fall.

7950. SEMINAR (1). SEM. 1. Required of all graduate students in Agronomy and Soils. Fall, Spring. Course may be repeated for a maximum of 1 credit hours.

7970. AGRONOMY PROBLEMS (1-3). LEC. 1. Conferences, problems and assigned reading in soils and crops, including results of agronomic research from the substations and experiment fields. Course may be repeated for a maximum of 3 credit hours.

7990. RESEARCH AND THESIS (1-10). MST. Research and thesis on problems in the soil and crop sciences. Course may be repeated for a maximum of 10 credit hours.

8570. PHYSICAL SOIL CHEMISTRY (3). Pr., CHEM 6070 and AGRN 6300. Interpretation of soil properties and chemical reactions in terms of ion exchange, solubility diagrams, solutions equilibria, electrochemistry, and electrokinetics of charged particles. Fall.

8580. ADVANCED SOIL PHYSICS (3). LEC. 3. Pr., MATH 1720, PHYS 1600, AGRN 7590. Transport phenomena in soils. Physical principles and analysis of the storage and movement of water, solutes, heat and gases in soils. Spring.

8990. RESEARCH AND DISSERTATION (1-10). DSR. Course may be repeated for a maximum of 10 credit hours.