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African Crop Science Journal
African Crop Science Society
ISSN: 1021-9730
EISSN: 2072-6589
Vol. 2, No. 1, 1994, pp. 125-129
Bioline Code: cs94019
Full paper language: English
Document type: Research Article
Document available free of charge

African Crop Science Journal, Vol. 2, No. 1, 1994, pp. 125-129

 en Effect of Inoculation rates and Phosphorus Fertilization on Nitrogen Fixation in Soyabean
Moharram, T.M.M; Safwat, M.S.A & Farghaly, M.M

Abstract

Field experiments were conducted to study the effect of inoculation rates (104 and 108 rhizobial cells 100 g-1 seeds) and phosphorus fertilizations (0 and 20 kg P ha-1) on N-fixation, yield and N and P uptake for two cultivars of soybean (Clark and Crowford). Inoculation stimulated nodule formation and N-fixation. Application of phosphorus at the inoculation rate of 108 r.c.100g-1 seeds significantly increased the amount of nodules and N-fixed. Cultivar Clark performed better than Crowford.

Keywords
Nitrogen-fixation, phosphorus, soybean

 
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