National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692 Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A long term field experiment to study the effect of INM on soil fertility and productivity of cotton + greengram intercropping system in Vertisols was initiated during 1987-88 and the present study was conducted during kharif 2015-16 at Research field of AICRP for Dryland Agriculture, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra. The soil of the experimental site was moderately alkaline in reaction, low in available nitrogen, medium in available phosphorus and high in available potassium. The eight treatments comprised of control,100% RDF(50:25:00 NPK kg ha-1) through chemical fertilizer,50% RDF through chemical fertilizer, 50% N through FYM/gliricidia, 50% N through fertilizers + 50% N through FYM/gliricidia +100% P2O5 ha-1 fertilizers and 100% N ha-1gliricidia + 100% P2O5ha-1 fertilizers in randomised block design with three replications. The results after 29th cycle indicated that the use of FYM followed by gliricidia green leaf manuring in conjunction with chemical fertilizers recorded higher cotton and greengram yields with maximum monetary returns with improvement in soil fertility. Hence, it is concluded that long term application of 50% N through FYM/gliricidia + 50% N through inorganics + 100% P2O5 ha-1 to cotton+greengram (1:1) intercropping system resulted in sustaining crop productivity and build up fertility status of Vertisols under rainfed condition.
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