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N supply by groundnuts to maize in a maize plus groundnut intercropping system, as affected by the genotype
R. Senaratne, D. S. RatnasingheVolume:
15
Language:
english
Pages:
5
DOI:
10.1007/bf00361614
Date:
March, 1993
File:
PDF, 572 KB
english, 1993