Effects of ditch‐buried straw return on water percolation, nitrogen leaching and crop yields in a rice–wheat rotation system

Abstract

This study suggests that N losses via leaching from the rice-wheat rotation may be reduced by the burial of the appropriate amount of straw at the appropriate depth. Greater amounts of buried straw, however, may promote nitrogen leaching and negatively affect crop growth and yields. Complementary field experiments must be performed to make specific agronomic recommendations.