Instructor: Grybauskas
Prerequisites: CHEM 104 or CHEM 113, NRSC 201. Not open to students who have completed PBIO 365.
Course Description: An introduction to the casual agents, nature and management of plant diseases with particular attention paid to economically important diseases of horticultural and agronomic crops.
Three hours of lecture and three hours of laboratory per week.

Instructor: R. Hill
Prerequisite: NRSC 200. Credit will be granted for only one of the following: AGRO 413 or NRSC 200.
Course Description: Importance and causes of soil erosion, methods of soil erosion control. Effects of conservation practices on soil physical properties and the plant root environment. Irrigation and drainage as related to water use and conservation.
Offered odd-numbered springs.

Instructor: R. Hill
Prerequisites: NRSC 200 and a course in physics; or permission of department. Credit will be granted for only one of the following: AGRO 417 or NRSC 417.
Course Description: A study of soil water interactions: the hydrologic cylce; the unique properties of water and soil;the soil components and their interactions; the field water cycle; transport processes involving water, heat and solutes; human effects on soil and groundwater; as well as the measurement, prediction, and control of the physical processes taking place in and through the soil.
Two hours of lecture and three hours of laboratory per week.

Instructor: B. James
Prerequisite: NRSC 200. Credit will be granted for only one of the following: AGRO 421 or NRSC 421.
Course Description: The chemistry and composition of mineral and organic colloids in soils, including ion exchange, oxidation-reduction, acidity, surface charge, and solution chemistry. Lectures and readings pertain to plant nutrition, waste disposal, and groundwater quality.
Three hours of lecture and three hours of laboratory per week.

Instructor: P. Steinhilber
Prerequisites: NRSC 200 and CHEM 104 or permission of department. Credit will be granted for only one of the following: AGRO 423 or NRSC 423.
Course Description: Reaction and fate of pesticides, agricultural fertilizers, industrial and animal wastes in soil and water with emphasis on their relation to the environment.

Instructor: R. Weil
Course Description: Environmental, social and economic needs for alternatives to the conventional, high-input farming systems which currently predominate in industrial countries. Strategies and practices that minimize the use of non-renewable resources.
Offered odd-numbered falls.

Instructor: C. Mulchi
Course Description: Effects of air pollutants such as ozone, sulfur dioxide, acid rain, etc., and soil pollutants such as toxic metals, pesticides, on the growth, productivity and quality of crops.

Course Description: The application of biochemical and biophysical methods to problems in biological research with emphasis on plant materials.
Two hours of lecture and four hours of laboratory per week.

Prerequisite: BSCI 442 or permission of instructor.
Recommended: PHYS 263, PHYS 406, BSCI 435. Credit will be granted for only one of the following: HORT 683 or NRSC 683.
Course Description: Photobiology including: photochemistry, photosynthesis and photomorphogenesis. How light (UV, visible and near infrared) interacts with plants to regulate physiological responses such as stomatal function, carbon fixation, phototropism and flowering.

Prerequisite: One course in plant physiology
Course Description: Growth, productivity and survival are intimately linded to a plant's ability to adjust to its environment. The information provided in this course is designed to provide an introduction to the basic physical and psysiological principles necessary for understanding the interactions between plants and their environment. The overall objective of this course is to understand plant responses and adaptations to the environment and the ecological relevance of these responses.

Not open to students who have completed AGRO 711. Credit will be granted for only one of the following: AGRO 711 or NRSC 711.
Course Description: Integration of the biological, physical, and chemical aspects of plant growth in soils.

Prerequisites: AGRO 302 and permission of both department and instructor.
Course Description: A continuation of AGRO 421 with emphasis on soil chemistry of minor elements necessary for plant growth.

Prerequisite: NRSC 414 (AGRO 414) or permission of department.
Course Description: An integrated approach to the study of soil genesis problems using tools presently available to the pedologist. Field examination, description and sampling of soils will be studied. Following a discussion of soil geomorphology, variability, and sampling and proceeding through a spectrum of laboratory procedures, efforts culminate in the analytical interpretation of the data with regard to pedological processes.
Two hours of lecture and six hours of laboratory per week.

Prerequisite: BSCI 442 or NRSC 401.
Course Description: In this class we will study natural and synthetic chemicals which regulate the growth and development of plants. The mechanism by which herbicides and plant growth regulators express their activity on plants and the impact of these chemicals on the environment will be a primary focus of this course. The interaction of these chemicals with biotechnology advances will also be examined.

Prerequisite: BSCI 442. Not open to students who have completed HORT 783. Credit will be granted for only one of the following: NRSC 783 or HORT 783.
Course Description: A study of the interactions between abiotic environmental factors and plants. The course will emphasize the molecular aspects of how plants perceive, tranduce, and respond to environmental factors.

Prerequisite: NRSC 410 or equivalent.
Recommended: BIOM 402 or equivalent. Not open to students who have completed AGRO 802. Credit will be granted for only one of the following: AGRO 802 or NRSC 802.
Course Description: An in-depth advanced course for graduate students in plant pathology, agronomy, entomology and horticulture emphasizing the principles of effective plant disease management in the agroecosystem.

Prerequisites: BSCI 442 or BOTN 642; plus advanced training in plant sciences.
Course Description: Major emphasis will be on physiological processes affecting yield and productivity of major food fiber and industrial crops of the world. Topics such as photosynthesis, respiration, photorespiration, nitrogen metabolism will be related to crop growth as affected by management decisions. Topics of discussion will also include growth analysis and the use of computer modeling of crop growth by plant scientists.

Prerequisites: AGRO 302; permission of both department and instructor.
Course Description: An advanced study of the theory of the chemical methods of soil investigation with emphasis on problems involving application of physical chemistry.
Offered the first semester of alternate years.

Course Description: Soil minerals, with emphasis on clay minerals, are studied from the viewpoint of soil genesis and physical chemistry. Mineralogical analyses by x-ray and chemical techniques.

Prerequisites: AGRO 417; and permission of both department and instructor.
Course Description: An advanced study of physical properties of soils.