Studies on cassava-legume intercropping systems for the Oxisols of Kerala State, India.
1985
Ashokan P.K. | Vikraman R. | Sudhakara K.
In a field experiment over three years, cassava (Manihot esculenta (Crantz)) was planted on mounds with two rows of intercrops in the inter-row spaces. The performances of five legumes, cowpea (Vigna unguiculata (L.) Walp.), groundnut (Arachis hypogaea L.), mungbean (Vigna radiata (L.) Wilczek), urd bean (Vigna mungo (L.) Hepper) and soya bean (Glycine max (L.) Merril) as intercrops were compared. Yields of cassava in monoculture and mixed culture were similar. Cassava-cowpea was the most profitable system, followed by cassava-urd bean with an increase in net return of 30 % and 25 % respectively and was recommended on Oxisols in the humid tropics. The cost of weeding was reduced by 50 % in cassava-cowpea system. Organic matter depletion was slow in intercropped plots and total N, available P and K contents were higher. The height, number of leaves, number and DM content of tubers of cassava were not significantly influenced by the intercrops.
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