| dc.contributor.author | Mugendi, E | |
| dc.contributor.author | Gitonga, N | |
| dc.contributor.author | Cheruiyot, R | |
| dc.contributor.author | Maingi, J | |
| dc.date.accessioned | 2019-01-15T06:33:42Z | |
| dc.date.accessioned | 2020-02-07T06:27:29Z | |
| dc.date.available | 2019-01-15T06:33:42Z | |
| dc.date.available | 2020-02-07T06:27:29Z | |
| dc.date.issued | 2010 | |
| dc.identifier.citation | Mugendi, E., Gitonga, N., Cheruiyot, R., & Maingi, J. (2010). Biological nitrogen fixation by promiscuous soybean (Glycine max L. Merril) in the central highlands of Kenya: response to inorganic fertilizer soil amendments. World journal of agricultural sciences, 6(4), 381-387. | en_US |
| dc.identifier.uri | http://www.idosi.org/wjas/wjas6(4)/7.pdf | |
| dc.identifier.uri | http://repository.must.ac.ke/handle/123456789/1182 | |
| dc.description.abstract | Biological nitrogen fixation (BNF) by promiscuous soybean cultivars offers a potential for minimizing the investment made by resource-limited farmers in central highlands of Kenya. Nitrogen fixation in this grain legume is influenced by factors such as availability of mineral elements and prevalent weather conditions. Nitrogen (N), Phosphorus (P) Potassium (K) and Sulphur (S) are intimately involved in plant metabolism, growth and N2 fixation. In this study field, laboratory and greenhouse experiments were carried out to investigate the effects of PKS fertilizer application on nodulation and nitrogen fixation of two promiscuous soybean varieties. Early maturing TGx 1740-2F (SB19) and late maturing TGx 1448-2E (SB20) were the main factors while fertilizer inputs were the sub-factors. Nodulation status, plant biomass production and yield components were used for data generation. The transformed data was subjected to analysis of variance-ANOVA using PROC GLM package to determine the main effects of the treatments and their interactions. Specific pair-wise comparisons of treatment levels were done using the least significant differences (LSD) test at P=0.05 and correlations using 'PROC CORR'. In all sites the main effects of carbon level in the field, soybean varieties and treatments on nodulation, plant biomass production and yield components were significantly different at (P≤0.05). The effects due to the interaction of these factors were not significant. Laboratory and greenhouse results indicated that the isolates obtained were slow growing Bradyrhizobium elkanii, Bradyrhizobium japonicum and the fast growing Sinorhizobium fredii. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | IDOSI Publications | en_US |
| dc.title | Biological nitrogen fixation by promiscuous soybean (Glycine max L. Merril) in the central highlands of Kenya: response to inorganic fertilizer soil amendments. | en_US |
| dc.type | Article | en_US |
