29. Integrated effect of organic waste and NPK fertilizers on nutrients uptake in potato crop and soil fertility
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Abstract
The present research was carried out at Nuclear Institute of Food and Agriculture (NIFA), Peshawar Pakistan, to evaluate the integrated response of organic waste and N-P-K fertilizers to nutrients concentration in potato tuber and soil fertility. Fifteen treatment combinations with three replications were used in RCB design. Potato tubers and soil samples (0-15 and 15-30 cm depth) was collected before and after the experiment were analyzed. Data indicated that combined use of organic waste and N-P-K fertilizers significantly improved soil fertility and nutrients concentration in potato tuber. Higher nitrogen (N) (2.10g 100g-1), phosphorus (P) (0.30g 100g-1) and potassium (K) (3.16g 100g-1) concentration were recorded with treatments (municipal solid waste (MSW)+ half NPK) and (Filter cake +full NPK) as compared to control. Maximum total soil N, AB-DTPA extractable P, K and micronutrients were recorded with (MSW+ half NPK) and (Filter cake +full NPK) at both depths. Investigation revealed that the combined use of organic waste and chemical fertilizers beneficial to soil and plant. Moreover, treatments (MSW +full NPK) and (Filter cake + full NPK) seemed to be an adequate dose, for sustainable nutrients concentration in potato tuber and soil fertility.
Keywords: Potato; Organic waste; NPK fertilizer; Organic matter; Micronutrients