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Soil Test Based Fertilizer Prescriptions through Inductive cum Targeted Yield Model for Sesamum on Alfisol

Journal of Agricultural Science and Technology(A) 2020年第3期10卷 115-122页

作者： adusumilli madhavi Matli Srinivasa Chari Tumula Srijaya Pasupuleti Surendra Babu Pradip Dey All India Coordinated Research Project on Soil Test Crop Response Professor Jayashankar Telangana State Agricultural UniversityHyderabad 500030India All India Coordinated Research Project on Soil Test Crop Response Agricultural Research StationAcharya N.G.Ranga Agricultural UniversityUtukur 516003India All India Coordinated Research Project on Micronutrients Professor Jayashankar Telangana State Agricultural UniversityHyderabad 500030India All India Coordinated Research Project on Soil Test Crop Response Indian Institute of Soil ScienceBhopal 462038India

Studies on Soil Test Crop Response Based Integrated Plant Nutrition System(STCR-IPNS)were conducted for three years adopting the Inductive cum Targeted Yield Model,on alfisols of Unified Andhra Pradesh,Southern India during summer 2016-2018 in order to develop fertilizer prescriptions through IPNS for the desired yield targets of Sesamum under field *** bases for making the fertilizer prescriptions *** requirement(NR),contribution of nutrients from soil(Cs),fertilizer(Cf)and vermicompost(CVC)were computed using the field experimental *** use of these basic parameters,the fertilizer prescription equations were developed under NPK alone and under IPNS for the desired yield targets of Sesamum for a range of soil test *** quantity of fertilizers contributed by the application of vermicompost was *** requirement to produce 100 kg of sesame seed was worked out to be 10.20 kg N,3.90 kg P2O5 and 5.22 kg *** the present investigation,the requirement of N was higher which is followed by K2O and *** requirement of N was 2.62 times higher than P and 1.95 times higher than *** percent contribution of N,P and K was 12.25,15.75 and 6.00 from soils,41.68,22.85 and 59.97 from fertilizer and 9.87,6.74 and 18.65 from organic manures,*** the Inductive cum Targeted Yield Model used to develop fertilizer prescription equations provides a strong basis for soil fertility maintenance consistent with high productivity and efficient nutrient management in farming for sustainable and enduring agriculture.

关键词： Fertilizer prescription equations alfisol Soil Test Crop Response Based Integrated Plant Nutrition System Sesamum yield target

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