Presents the use of geographic information system (GIS) technology in the laboratory section of an upper-level college course in soil physics. The laboratory includes a lecture portion that provides an introduction to GIS and selected applications to soil science, agriculture, and environmental sciences. (LZ)

Summarizes the capabilities of a computer program related to forest fertilization. Provides a description of input parameters, some sample exercises, software specifications, and availability information. Additional references are listed. (Author/RT)

Discusses the use of a computer program designed to solve the mathematical model associated with soil nutrient uptake by plant roots and to predict the nutrient uptake. Describes a user-friendly personal computer version of this program. (TW)

Presents a computer program for use in teaching ion speciation in soil solutions. Provides information on the structure of the program, execution, and software specifications. The program estimates concentrations of ion pairs, hydrolytic species, metal-organic complexes, and free ions in solutions. (Author/RT)

Announces the development of a videodisc module which provides access to the U.S. Department of Agriculture information network. Relates sources of information, module description, recommendations for use, and software specifications. Describes the equipment needed. (RT)

Explains a discipline that requires students to become problem solvers in agronomic and pest areas using computer-simulated models. Describes the seven programing areas. The program is written in BASIC totaling 182K bytes for use with MS-DOS 2.0 or an IBM PC requiring 256 K RAM, color monitor, and card. Lists availability. (RT)

Discusses the need for education about soil erosion and advocates the use of the Universal Soil Loss Equation (USLE) to show the impacts of human and natural action on the land. Describes the use of a computer simulated version of the USLE in several environmental and farming situations. (TW)

Describes the development of a computer simulation model of forage-beef production systems, which is intended to incorporate soil, forage, and animal decisions into an enterprise scenario. Produces a summary of forage production and livestock needs. Cites positive assessment of the program's value by participants in inservice training workshops.…

Describes a problem-solving teaching method used in the Introductory Soils course at Iowa State University whereby students are assigned to groups and asked to serve as an advisor to a landowner. Using a computerized database for most data acquisition, students recommend farm usage and urban/alternate development plans. Includes the program…