1999•Canadian Journal of Soil ScienceRequires access

Tillage and crop residue effects on soil nitrate under three years of corn (Zeamays L.) on land previously in corn and forage crops

M. S. Burgess, G. R. Mehuys, Chandra A. Madramootoo

Abstract

A 3-yr field study in Quebec assessed effects of tillage (no-till, reduced, or conventional) × crop residues (removed or retained) on soil nitrate under corn production. Fall nitrate levels were greatest in plots without residues 1 yr after treatments began, but not thereafter. No-till and conventional tillage had similar values, but sometimes differed from reduced tillage. Key words: Nitrate, corn, no-till, reduced tillage, conventional tillage, crop residues

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Key concepts: Tillage, Agronomy, Zea mays, Crop residue, Conventional tillage, Forage, Nitrate, Crop