Influence of ghanajeevamrutha and liquid organic manures on soil fertilityand productivity of chickpea in vertisol

Abstract

A field investigation was undertaken to assess “Influence of ghanajeevamrutha and liquid organic manures on soilfertility and productivity of chickpea in vertisol” in medium deep black soils at College of Agriculture, Vijayapura. Theexperiment was laid out under Randomized Complete Block design (RCBD) with 3 replications, 13 treatments whichinclude different levels of ghanjeevarmrutha application equivalent to recommended dose of phosphorus alone and incombination with cow urine, jeevamrutha and vermiwash. The results showed that application of ghanajeevamrutha @ 100% of P nutrient requirement (10 t ha-1) + jeevamrutha @ 10 % twice foliar sprays first at flowering stage and second after15 days, recorded significantly higher organic carbon content (5.27 g kg-1), available N (307.33 kg ha-1), P (29.62 kg ha-1),K (446.33 kg ha-1) and S (22.93 kg ha-1) at harvest stage, higher grain yield (1576 kg ha-1), haulm yield (1852 kg ha-1) and alsosubstantially higher dehydrogenase activity (7.20 and 6.64 μg TPF g-1 soilday-1 , pod filling stage and harvesting stage,respectively) and phosphatase activity (14.56 and 13.78 μg PNP g-1 soil hr-1, at pod filling stage and harvesting stage,respectively), gross returns (`95466 ha-1), net returns (`63291 ha-1) and BC ratio (2.97 ).