Yield and mineral composition of grain legumes
1976
Nnadi, L.A., Soil Science Section, Institute for Agricultural Research, Ahmadu Bello University, P.M.B.1044, Zaria,Nageria | Balasubramanian, V., Soil Science Section, Institute for Agricultural Research, Ahmadu Bello University, P.M.B.1044, Zaria,Nageria | Singh, L., Soil Science Section, Institute for Agricultural Research, Ahmadu Bello University, P.M.B.1044, Zaria,Nageria
Various parts of bambara groundnuts (Voandzeia subterrania Thouars) and cowpeas (Vigna unguiculata L. Walp) grown in savanna zone of West Africa were analysed for their mineral content at harvest. Considerable variation was found between different varieties of cowpeas in their content of N, Ca, and Mg. Root N, Ca, and P of bambara groundnuts were significantly higher than those in the roots of cowpeas. But the concentration of minerals in the top parts of cowpeas were higher than those in the above-ground portions of bambara groundnuts. The study showed that about 98 per cent of Ca, 80 per cent of Mg and 71 per cent of K in the above-ground parts of the cowpeas were in the stover.
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