Author(s): Isyaku Ibrahim Muhammad, Aisha Wada Abubakar, Anas Hamisu, Abubakar Iliya and Syed Khalil Ullah

Abstract: A field study was conducted at the Botanical Garden of the Biological Sciences Department, Federal University Dutse, to assess the impact of varying concentrations of single super phosphate fertilizer on Groundnut (Arachis hypogea L.). The study included four treatment levels of single super phosphate: 0 g P/polythene bag (SSP1), 2.0 g P/polythene bag (SSP2), 4.0 g P/polythene bag (SSP3), and 6.0 g P/polythene bag (SSP4). The experiment followed a randomized complete design (RCD) with five replications. The results of the field study demonstrated that groundnut responded positively to all levels of single super phosphate fertilizer, and these responses were statistically significant (p<0.05) for all the recorded parameters. As the concentration of phosphate fertilizer increased, there was a corresponding increase in growth parameters, including fresh and dry weight, number of leaves, number of branches, number of flowers, and plant height. Notably, at 3, 4, and 5 weeks after planting (WAP), the values for plant height, number of leaves, branches, flowers, fresh and dry weight obtained in SSP2, SSP3 and SSP4 were significantly better than the control group (SSP1), which as depicted in table 3, 4, 5, 6, 7 and 8 respectively. However, SSP4 recorded the highest value for all the assessed parameters, which were significantly different from the control treatment. In conclusion, the study suggests that a single super phosphate fertilizer at a rate of 6.0 g/polythene bag is suitable for promoting the vegetative growth of Groundnut in the study area. This fertilizer concentration led to significant improvements in plant height, number of leaves, and number of branches, which are important indicators of plant health and productivity.

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