Submitted to: American Chemical Society Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 3/25/2003
Publication Date: 3/25/2003
Citation: GRAFF, C.D., KOSKINEN, W.C., ANDERSON, J.A., HALBACH, T.R., DOWDY, R.H. UNDERSTANDING THE SPATIAL DISTRIBUTION OF THE FIELD DISSIPATION OF ACETOCHLOR. AMERICAN CHEMICAL SOCIETY. 2003 ABSTRACT SPRING. #10. Interpretive Summary:
Technical Abstract: Current research in precision agriculture has focused on solving problems dealing with soil fertility and crop yield. Specifically, geostatistical methods are being used to link the spatial distribution in soil physical and chemical properties to long recognized spatial patterns in crop yield. Because soil properties such as organic carbon content (OC), percent clay, and pH can affect the field dissipation of certain herbicides, and they can significantly vary spatially across the landscape, it is possible that herbicide dissipation rates have spatial structure as well. Experiments at the Rosemount Experiment Station in Dakota County, MN were conducted to test whether or not principals guiding research into the precision management of fertilizers can be used to study soil-herbicide interactions. Various regression and spatial techniques were applied to try and correlate patterns in herbicide dissipation rates to the distribution of soil properties and terrain attributes across the field.