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Nitrogen level and cultivar effects on nodulation, dinitrogen fixation and yield of grain legumes: I. Cowpea cultivars
(1985)
N fixation was studied by the 15N method in Vigna unguiculata cv. ERI-2, Vita 4 and Machakos 74 grown in a field which had been fallow for 3 years and given 20 or 100 kg N/ha. The higher N rate reduced nodulation in all ...
The effects of phosphorus and nitrogen fertilizer level on nodulation, growth and dinitrogen fixation of three bean cultivars
(1986)
Application of P (150 kg P/ha) increased nodulation, dry matter yield, P uptake, tissue N yield, dinitrogen fixation and seed yield of the three bean cultivars (Rose Coco, Canadian Wonder and Mwezi moja) at both N levels ...
The Effect of Phosphorus on Nodulation, Growth and Dinitrogen Fixation by Beans
(1983)
The effect of phosphorus on nodulation, dry matter yield and dinitrogen fixation (as determined by the 15N technique) of bean plants (Phaseolus vulgaris) was evaluated in a field experiment at three growth stages. Application ...
Nitrogen level and cultivar effects on nodulation, dinitrogen fixation and yield of grain legumes: II. Common bean cultivars.
(1985)
N fixation was studied by the 15N method in Phaseolus vulgaris cv. Rose Coco, Canadian Wonder and Mwezi Moja grown in the field and given 0, 20 or 100 kg N/ha. Nodulation, DM yield and seed yield did not differ significantly ...
Phosphorus and cultivar effects on nodulation, growth, dinitrogen fixation and yield of cowpea (Vigna unguiculata)
(1984)
In field experiments at Katumani in 1982, cowpea cv. Katumani 80 and Vita 4 were grown in chromic luvisol soils and treated with 15N-labelled ammonium sulphate at 20 kg N/ha, with or without 70 kg P/ha. Differences in ...