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Effect of nitrogen- and potassium-based fertilizers on nitrogen fixation in the winged bean,Psophocarpus tetragonolobus
S. Parthipan, S. A. KulasooriyaVolume:
5
Year:
1989
Language:
english
Pages:
7
DOI:
10.1007/bf01741764
File:
PDF, 370 KB
english, 1989