Author(s):

Rohan Serawat, Narendra Swaroop, Tarence Thomas, Arun A David and P Smriti Rao

Abstract: A field experiment was conducted during the kharif season of 2017 in black gram (var. TAU-1) at Research farm, Department of Soil Science and Agricultural Chemistry, Naini Agricultural Institute, SHUATS, Allahabad (U.P.). The experiment was laid out in a Randomized Block Design with nine treatment combinations, consisting of three N P K levels (0, 25 and 50%) and Molybdenum (0, 25 and 50%). The treatment T₈ [50% NPK ha^-1 + 50% Molybdenum] showed that plant height (40.80 cm), no. of leaves plant^-1 (30.10) and pod length (9.90 cm), no. of seed pod^-1 (10.10) and it also gave highest yield (6.80 q ha^-1). Also in post soil analysis, Organic carbon (0.55%), available nitrogen (340.23 kg ha^-1), phosphorus (30.80 kg ha^-1), potassium (205.83 kg ha^-1) and Molybdenum (0.30 ppm ha^-1) respectively were found significantly higher as compared to other treatment combination. The economy of different treatment concerned, the treatment T₆ provides highest net profit (₹ 19804.56) with cost: benefit ratio (1: 1.94).

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