Abstract
Background: This study aimed to evaluate the growth performance, biomass production and nutrient accumulation of three abundant leguminous weeds, namely Crotolaria micans Link., Aeschynomene indica L. and Calopogonium mucunoides Desv., found in Mizoram, India, to assess their potentiality as green manure crops. Methods: The field experiment was conducted using a randomized block design. After 90 days of sowing, the growth performance of the plants and biomass accumulation was assessed. Accumulation of nutrients was estimated by analyzing the nutrient content using standard methods and multiplying it with dry biomass. Result: The result revealed that Crotolaria micans showed higher growth and biomass accumulation. C. micans accumulates higher N, P, K, Zn, Cu and Fe contents in the shoot and root biomass while A. indica accumulates higher Ca in the root biomass. We conclude that Crotolaria micans was the most promising leguminous weed species in terms of growth performance, biomass production and nutrient accumulation and has better potential to be utilized as a green manure crop.
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