Author(s):

AB Age, PR Kadu, VV Gabhane, SD Jadhao, DV Mali and SD Zodge

Abstract: The present investigation was conducted during kharif 2016-17 with a view to study the effect of various Conservation Practices on Yield and Nutrient Uptake by Soybean under soybean –cotton rotation in Vertisol executed at Research Farm, Department of Soil Science and Agricultural Chemistry, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. The experiment was carried out with main plot comprises two treatments i.e. conservation tillage (CNS) (one harrowing and two weeding) and conventional tillage (CNV) (one ploughing, one harrowing, two hoeing and two hand weeding) and eight sub plot treatments of integrated plant nutrient system consisting of control, 100 per cent RDF and use of chemical fertilizer along with organic source of nutrient in which 50 per cent N applied through organic sources (FYM, wheat straw, Glyricidia leaf manuring (GLM), composted cotton straw, Vermicompost and Phosphocompost) and remaining N was applied through chemical fertilizers. The soybean variety JS-335 was undertaken for the experiment with general recommended dose of fertilizer 30:75:30 N, P2O5, K2O kg ha-1. The experiment was framed in randomised block design (RBD) with three replications. The soil and plant samples were analysed after harvest of soybean during 2016-17. Among the tillage practices, significantly higher soybean seed yield and uptake of nutrients were recorded in conservation tillage as compared to conventional tillage under soybean-cotton rotation. The various integrated plant nutrient supply treatments influenced significantly soybean seed and straw yield with the application of phosphocompost in conjunction with chemical fertilizers. The significantly highest uptakes of nutrients were recorded with the application of phosphocompost in conjunction with chemical fertilizers followed by FYM, GLM and vermicompost under conservation tillage.

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