Shifting cultivation and alternatives

Shifting cultivation and alternatives

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(PANS manual no. 4). London, UK ... In either case, the most important period for competition with weeds is the early part of the cropa#39;s life. ... Combinations of cultivation on the flat or on ridges, with or without mulch, f.y.m. or NPK appliedanbsp;...

Title:Shifting cultivation and alternatives
Author:Daniel M. Robison, Sheila J. McKean
Publisher:Oxford Univ Pr - 1992


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