Vol. 7, Issue 4 (2019)
Effect of long term integrated nutrient management on carbon pools and their relationship with yield of cotton + greengram (1:1) intercropping system in Vertisols
Author(s): Ajay Shelke, VV Gabhane, Jaipal Yadav, MM Ganvir and SD Jadhao
Abstract: A field study was conducted during kharif 2018 at Research field of AICRP for Dryland Agriculture, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra to assess the long term effect of integrated nutrient management on carbon pools and yield of cotton+greengram(1:1) intercropping system in Vertisols. The eight treatments replicated three times in randomized block design comprised of control, 50% and 100% RDF, 50% N ha-1 through gliricidia/FYM, 50% N fertilizers + 50% N ha-1 gliricidia/FYM + 100% P2O5+ 100% K2O ha-1 fertilizers and 100% N ha-1 gliricidia + 100% P2O5+ 100% K2O ha-1 fertilizers.The results after 32nd cycle indicated that application of 50% RDN through FYM in combination with 50% N + 100% P2O5 + 100% K2O ha-1 through inorganics recorded higher cotton+greengram yield and was on par with the application of 50% N through gliricidia + 50% N +100% P2O5 + 100% K2O ha-1 through fertilizers.However, the significant improvement in carbon pools was recorded with application of 50% N through gliricidia + 50% N +100% P2O5 + 100% K2O ha-1 through fertilizers and was on par with 50% RDN through FYM in combination with 50% N + 100% P2O5 + 100% K2O ha-1 through inorganics. Among the various carbon pools, the labile and less labile carbon pool was highly correlated with yield of crops. Hence, it is concluded that conjunctive application of 50% N through FYM/gliricidia in combination with + 50% N +100% P2O5 + 100% K2O ha-1 through fertilizers resulted in improvement in carbon pools and yield of cotton+greengram grown in Vertisols under rainfed conditions.
Pages: 1862-1867 | 263 Views 66 Downloads
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How to cite this article:
Ajay Shelke, VV Gabhane, Jaipal Yadav, MM Ganvir, SD Jadhao. Effect of long term integrated nutrient management on carbon pools and their relationship with yield of cotton + greengram (1:1) intercropping system in Vertisols. Int J Chem Stud 2019;7(4):1862-1867.
