Effect of Organic and Liquid Manures on Productivity and Profitability of Blackgram

Abstract

Background: Blackgram being important crop among pulse is gaining popularity and thus requiring suitable crop production practices especially under organic farming. In this context, this study was proposed with the objective to investigate the optimal nutrient management practices in organic blackgram by utilizing various organic nutrient sources. Methods: Field experiments were conducted at two different locations in spilt plot design. The treatments consisted of 4 levels of organic manure viz., Farm Yard Manure (FYM) @ 12.5 t ha-1, Vermicompost (VC) @ 2.5 t ha-1, Enriched FYM (EFYM) @ 750 kg ha-1 and Enriched VC (EVC) @ 1 t ha-1 as main plot treatments and five levels of foliar spray of liquid manure viz., two foliar sprays of Panchagavya @ 3% and Fermented egg extract (FEE), Fermented fish extract (FFE), Farmers effective microorganisms (FEM), Jeevamruth each @ 5%. Result: Results revealed that application of EFYM and VC, produced higher yield parameters and grain yield, respectively under main plot organic manure addition at site-I and II. Among the sub plots liquid manure treatments Panchagavya spray has produced higher grain yield along with the yield parameters at both the sites. Among the organic manures higher economic returns were obtained with the application of EFYM at both the sites while among the liquid manures better returns were obtained with the application of Panchagavya at site-I and Panchagavya or FEM spray at site-II.