Effect of Phosphorus and Zinc on the Growth, Nodulation and Yield of Soybean (Glycine Max (L.) Merrill)

Musa, Umar Tanko and Yusuf, Momohjimoh

Department of Crop Production, Kogi State University P.M.B, 1008 Anyigba, Kogi State Nigeria.

Corresponding Author E-mail: adavize70@gmail.com

Accepted 18 December 2020

Citation: Musa UT and Yusuf M (2021). Effect of Phosphorus and Zinc on the Growth, Nodulation and Yield of Soybean (Glycine Max (L.) Merrill). International Journal of Plant Breeding and Crop Science, 8(2): 1069-1079.

 

Copyright: © 2021: Musa and Yusuf. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

An investigation was carried out at Kogi State University Student Research and Demonstration farm Anyigba during the 2019 wet season to observe the effect of phosphorus and zinc on the growth, nodulation and yield of soybean. The treatments comprised three levels: phosphorus and zinc (0, 30 and 60 kg P2O5/ha; 0, 5 and 10kg Zn/ha) and two varieties TGX 536 – 02D and Samsoy 2. The investigation revealed that application of phosphorus affected growth, nodulation, yield and some yield components of soybean while zinc application, apart from the plant height, which is reduced significantly, had no significant effect on other growth characters, nodulation, yield and yield components. However, it was generally found to decrease most of the characters. Application of 60 kg P2O5/ha gave the highest growth and yield, while 30 kg P2O5/ha gave the highest nodulation. Application of 60 kg P2O5/ha significantly increased yield to 1.9t/ha, which was significantly higher over the control plots, which gave 1.7t/ha. Crude protein and oil contents of the seeds were not significantly affected by phosphorus application but were significantly affected by zinc application, which significantly decreased protein content as its amount an increase from 0 to 10 kg/ha, and significantly increased oil content from 0 to 5kg/ha and decreased it below 5kg/ha. It was also revealed that the two varieties responded similarly to phosphorus and zinc in terms of growth, grain yield and crude protein content of the seeds.

Keywords: Glycine max (L.) Merrill, Nodulation, yield, yield characters, percentage effective nodule, dry matter accumulation, oil content, correlation.

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