Productivity and profitability of maize (Zea mays) as influenced by intercropping of rajmash (Phaseolus vulgaris) and nutrient management techniques under sub-alpine conditions of Jammu, India

摘要

A field experiment was conducted during kharff 2011 and 2012 at Sartangal to study the effect of intercropping and nutrient management on productivity and profitability of cultivating maize under sub-alpine conditions of Jammu. The inter-cropping systems were sole maize, sole rajmash, maize + rajmash in a 1:1 row (1 rows of maize alternating with 1 row ofrajmash) and main + rajmash in 2:1 row (2 rows of maize alternating with 1 row ofrajmash). The nutrient management treatments were, T-1=control (no fertility), T-2= 100% NPK (RDF, recommended dose of fertilizers), T-3 = 75% RDF + 25% N through farmyard manure (FYM) and T-4=50% RDF + 50% N (FYM). Among cropping system maize + rajmash (1:1) produced highest maize grain equivalent yield (MEY, 7772 kg he), net returns (INR 52190 ha(-1)), B:C ratio (1.81), land equivalent ratio (LER, 1.40) and area time equivalent ratio (ATER, 1.38). Whereas among nutrient management techniques, 75% RDF + 25% N (FYM) produced highest MEY (7681 kg ha(-1)), net returns (INR 52585 ha(-1)) and B:C ratio of 1.88 with highest LER (1.36) and ATER (1.33).