Search
Now showing items 1-10 of 13
Buffer pH methods for estimation of lime requirement of tropical acid soils.
(Univeristy of Nairobi, 1981)
Lime requirements (LR) of 26 acid agricultural soils were estimated using the following buffer methods: Shoemaker-McLean-Pratt single buffer (SMP-SB), SMP double buffer (SMP-DB), Mehlich buffer method for crops with high ...
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 ...
Sorghum responses to N and P fertilizer in four semi-arid sites of Machakos and Kitui districts, Kenya
(University of Nairobi,, 1989)
The effect of level of CaCO3, inoculation and lime pelleting on the nodulation and growth of beans in five acid soils.
(Univeristy of Nairobi, 1981)
In greenhouse trials with Phaseolus vulgaris cv. Canadian Wonder grown on 5 acid soils of pH 3.9-5.1, nodule wt. decreased with increasing percentage soil C, and at 5.60% C no nodules were observed. In soils with low OM ...
Rhizobium phaseoli inoculation trials on farmers' fields in Kenya.
(Univeristy of Nairobi, 1988)
A study was conducted on farmers' fields in Kikuyu Division, Kenya, to determine whether inoculating bean seeds with Rhizobium phaseoli could match the N supplied by 200 kg of diammonium phosphate (DAP) for pure stands of ...