Author(s):

Nishant Srivastava, Joy Dawson and Ritesh Kumar Singh

Abstract: A field experiment was conducted during Zaid season of 2015-16 at Crop Research Farm, Department of Agronomy, Naini Agricultural Institute, SHUATS, Allahabad. The experiment consisted of two different spacings (30 cm × 10 cm and 45cm × 6.7 cm), three sources of nutrient (100% Organic, 50% Organic + 50% Inorganic and 100% Inorganic on the basis of N & K) and three methods of Zn application (No application, Soil application at 12.5 kg ZnSO₄ ha^-1 and foliar spray at 0.5% ZnSO₄) which was laid out in Factorial Randomised Block Design (FRBD) with three replications. Thus, there were in all 18 treatment combinations. The result revealed that greengram grown during zaid season with the spacing of 30 cm × 10 cm along with nutrient sources 50% Organic (1.50 tonne Farm Yard Manure ha^-1 + 83.35 kg Bone meal ha^-1) + 50% Inorganic (55.56 kg Diammonium phosphate ha^-1 +12.50 kg Muriate of Potash ha^-1) and Soil application of Zn at 12.5 kg ZnSO₄ ha^-1, recorded highest number of seeds pod^-1 which attributed in obtaining highest grain yield. Also, highest net return and benefit-cost ratio was recorded in same treatment.

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