Agrichemical Placement Impacts on Alachlor and Nitrate Movement Through Boil in a Ridge Tillage System
Document Type
Article
Publication Date
4-1992
Abstract
Surface microrelief may influence the fate of agrichemicals in the soil by influencing surface water flow. The objective of this experiment was to determine the impact of agrichemical placement on agrichemical movement in a ridge tillage system. Alachlor, bromide, and calcium nitrate (15N labeled) were applied above fifteen grid lysimeters to either the ridge top or valley area of a ridge tillage system. The grid lysimeters allowed temporal and spatial fractionation of leachate. Sixteen hours after agrichemical application, 15 cm of water was applied with a rainfall simulator. During the simulated rainfall, water flowed from the ridge top to the valley and then into the soil profile. Surface water flow increased the amount of water collected in lysimeters placed under valley areas when compared with ridge areas, which in turn increased the movement of N fertilizer, bromide, and alachlor through the soil profile.
Publication Title
Journal of Environmental Science and Health, Part B
Volume
27
Issue
2
First Page
125
Last Page
138
DOI of Published Version
10.1080/03601239209372770
Recommended Citation
Clay, S. A.; Clay, O. E.; Koskinen, W. C.; and Malzer, G. L., "Agrichemical Placement Impacts on Alachlor and Nitrate Movement Through Boil in a Ridge Tillage System" (1992). Agronomy, Horticulture and Plant Science Faculty Publications. 261.
https://openprairie.sdstate.edu/plant_faculty_pubs/261