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Evaluation of NPSB Fertilizer Rate to Improve Wheat Productivity in Cheha and Yem Districts of Southern Ethiopia

Sasahu Lewot, Tarekegn Tefera, Jemal Mohamed, Eyerusalem Mohamed, Paulos Ketema

Abstract


 Wheat is one of the major cereal crops produced in Ethiopia for the purpose of both home consumption and market; however, its productivity is low due to limited knowledge on rate of fertilizer application, low availability of soil nutrients. Therefore, this research was conducted in 2018 to 2019 during the main cropping season to determine best fertilizer rate for better production of wheat. The experiment consists of eight treatments such as a control, 92 N 62 P2o5 kg ha-1, (81.57 NPS kg ha−1,100 NPSB kgha−1, 150 NPSB kg ha−1, 200 NPSB kgha−1, 250 NPSB kgha−1, 300 NPSB kgha−1 and each supplements with 125 kg ha−1, 10 kg ha−1, 38 kg ha−1, 68 kg ha−1, 97 kg ha−1, 126 kg ha-1 urea respectively). The experiment laid down in randomized complete block design with three replications. The combined analysis of the result revealed that spike length, plant height, biomass, and grain yield were significantly (p < 0.05) affected by the application of different rate and type of inorganic fertilizers. The highest biomass (13833 kg/ha) was obtained when application of 250kg ha-1 NPSB +97 urea Kg ha-1 and maximum grain yield (4442 kgha-1) obtained when application of 300kgha-1 NPSB +126 Kg ha-1. The economic analysis showed that application of 250kgha-1 NPSB +97 kg ha-1 urea gave economic benefit of 106385ETB with acceptable marginal rate of return 26900 %. Therefore it could be concluded that application of 250kgha-1 NPSB +97 urea ha-1 economically profitable for yield of wheat production in this study area.


Keywords


Inorganic fertilizer, Rate, Type, Wheat, Yield

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References


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