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United States Department of Agriculture

Agricultural Research Service

Title: Site-Specific Herbicide Management for Preserving Water Quality

Authors
item Khakural, B - UNIVERSITY OF MINNESOTA
item Robert, P - UNIVERSITY OF MINNESOTA
item Mulla, D - UNIVERSITY OF MINNESOTA
item Oliveira, R - UNIVERSITY OF MINNESOTA
item Johnson, G - U OF MN SW EXP STA WASECA
item Koskinen, William

Submitted to: International Conference on Precision Agriculture Abstracts & Proceedings
Publication Type: Proceedings
Publication Acceptance Date: November 11, 1998
Publication Date: N/A

Technical Abstract: Soil properties that affect the fate and transport of herbicides and weed density were studied across a soil-landscape in Blue Earth County, MN. Soil properties such as organic matter, texture, pH, and adsorption coefficients of herbicides and weed density varied spatially. Adsorption coefficient (Kd) of imazethapyr was strongly correlated with soil pH while Kd of alachlor was strongly correlated with organic matter. Distribution of broad leaf weeds were related to soil-landscape characteristic. Preliminary results of this research suggest that site-specific application of herbicide (pre- or post-emergence) based on soil properties and weed density can reduce herbicide use.

Last Modified: 10/22/2014