Cotton is a wide spaced and initial slow growing crop and therefore, offers scope for intercropping green manure. Intercropping and incorporation of green manure supply nitrogen and increase the nutrient use efficiency and yield of cotton. Incorporation of leguminous green manure crops viz., sunnhemp, dhaincha, mung etc., has the beneficial effect on soil fertility also. As cotton and plant protection are inseparable, green manure intercrop has to serve as plant protectant too. More importance has to be attached for such green manures. With all these ideas in view, an attempt has been made to review the research work done on intercropping green manures and unconventional green manures on the growth, nutrient contribution, pest control and yield of cotton.
