Agrichemical placement impacts on alachlor and nitrate movement through soil in a ridge tillage system

S. A. Clay, D. E. Clay, W. C. Koskinen, G. L. Malzer

Research output: Contribution to journalArticlepeer-review

Abstract

Alachlor, bromide, anhd calcium nitrate (15N labelled) were applied above 15 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, 15cm of water was applied with a rainfall simulator. 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. -from Authors

Original languageEnglish (US)
Pages (from-to)125-138
Number of pages14
JournalJournal of Environmental Science & Health, Part B
Issue numberB27(2)
StatePublished - Jan 1 1992

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