Question

In dryland/rainfed farming areas with limited and erratic rainfall, which of the following agronomic practices is most effective for in-situ moisture conservation, helping crops withstand intermittent dry spells?

A Deep flood irrigation whenever possible
B Dust mulching/shallow inter-culture
C Removal of all crop residues immediately after harvest
D Continuous mono-cropping of high water-requiring crops
E Avoiding any tillage operations altogether, regardless of soil condition
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