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Growth response of Bradyrhizobium inoculated soybean grown under maize intercropping systems, and P and K fertilization

By: Daniel Nyoki, Patrick A. Ndakidemi

Key Words: Growth response, Bradyrhizobium, Soybean, Intercropping systems, Fertilization

Int. J. Biosci. 10(3), 323-334, March 2017.



The field experiment was carried out for two consecutive years to assess the effects of cropping systems, Rhizobium inoculation supplemented with P and K on growth performance of soybean. The experiment was laid out in split-split plot design with the main plots comprised of Rhizobia inoculation (with and without). The sub plots comprised of three cropping systems and the sub-sub plots having seven fertilizer levels (kg ha-1): Control, 20, 40 K, 26, 52 P, 26 P + 20 K and 52 P + 40 K. The experiment was replicated thrice. The results indicated that both treatments influenced most of the growth parameters of soybean assessed. Over un-inoculated treatments, Rhizobia inoculation significantly improved the growth of all parameters of soybean in this study. Similarly, P and K fertilization improved the growth of soybean over the control. Most of the parameters performed supper in plots treated with Rhizobia inoculation supplied with 26, 52 P and 20 K + 26 P kg ha-1 levels of P and K. The positive interactive effects of cropping systems, Rhizobium inoculation and P and K supplementation was observed on different growth parameters assessed. The positive interaction indicated the importance of these inputs and treatments for improving growth of crops and ultimately final yield in the study area.

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Growth response of Bradyrhizobium inoculated soybean grown under maize intercropping systems, and P and K fertilization

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Daniel Nyoki, Patrick A. Ndakidemi. 2017. Growth response of Bradyrhizobium inoculated soybean grown under maize intercropping systems, and P and K fertilization. Int. J. Biosci. 10(3), 323-334.
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