Project Number: 5368-12130-009-00
Project Type: Appropriated

Start Date: Dec 23, 2001
End Date: Dec 22, 2006

Objective:
IDENTIFY AND AMELIORATE IRRIGATION-INDUCED SOIL EROSION, SURFACE AND SUBSURFACE NUTRIENT LOSSES, AND PATHOGEN SOURCE, FATE AND TRANSPORT IN AND FROM IRRIGATED CROPPING-ANIMAL SYSTEMS under Improved Irrigation Water Management.

Approach:
Phosphorus release and fate and transport in surface and overhead irrigated systems will be related to the physical and chemical characteristics of the soil and irrigation water. The interactions between polyacrylamide and crop residues or field soil slope and tillage will be determined and used to develop application strategies to control irrigation-induced soil erosion. Runoff and nutrient loss data from irrigated soils receiving manure or byproducts will be used to develop management guidelines to reduce offsite impacts on receiving waters. The characterization of water and solute movement in the root and vadose zones of surface irrigated systems will be used to develop irrigation and fertilization practices that increase nitrogen fertilizer-use efficiencies, reduce solute leaching losses, and protect water resources. Pathogen source, fate and transport will be determined in irrigated cropping-animal systems to develop application and irrigation strategies that protect water quality and human health. Replacing 5368-12130-007-00D (04/96) and 5368-12130-008-00D (11/01).

Project Team

Westermann, Dale Mayland, Henry Sojka, Robert Bjorneberg, David Entry, James Lehrsch, Gary Lentz, Rodrick Kincaid, Dennis Leytem, April

Project Annual Reports

FY 2003   FY 2002

Related National Programs

Water Quality & Management (201)   Soil Resource Management (202)

Related Projects

Ceap Special Emphasis Watershed - Idaho Upper Snake Rock Watershed Assessment Study