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Apr 30, 2022Keywords:
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Main Article Content
Effect of Integrating Arbuscular Mychorrizal and N.P.K Fertilizer on Soil Properties, Nutritional Composition and Performance in Sweet Potato Production
Abstract
Agricultural practices based on application of bio-fertilizers and inorganic fertilizers would produce vigorous growth and more sustainable yield performance. The experimental trial was conducted in 2018 to evaluate the effects of Glomale mycorrhizal fungal inoculants with NPK fertilizer on the soil properties, nutritional composition, and yield performance of two orange fleshed sweetpotato (OFSP) varieties; Tis 0087/87 and Tis 8164. The inocula at the rate of 250kg/ha were tested separately with NPK fertilizers at 200kg/ha. The results obtained showed that N.P.K significantly enhanced and improved the soil chemical properties than AM (Arbuscular Mychorrizal). There were significant increases of microbial agents as AM were introduced than NPK, which reduced the number of bacteria and fungi. The nutritional value of the two varieties of OFSP were significantly improved when mycohrrizal fungi and NPK were applied, showing that Tis 8164 has more nutritional value than Tis 0087/87. Application of NPK fertilizer at 200kg/ha increased nutritional value more than AM. Inoculating plants with AM-fungi and NPK significantly increased yield and improved root organic composition. In general, the results indicated that application of organic and inorganic fertilizers enhanced sustainable sweet potato production and productivity.
