A trial was conducted at farmer's holding to study the soil test-rop response in CO 7 ragi using Mitsscherlich-Bray equation and making use of Pimental Gmes and Abreu equation for working on the optimum economic dose.The economic dose was found to be 58.6.20.0and 13.6kg/ha of N.Pand K.respectively for black soil.it was found that the present soil test recommandation was alrught with reference to N but lower efficies of utilization of addedd nutrients are discussed.
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