Effect of IPNS on Yield Attributes of Maize (Zea maysL.) Intercropped with Black Gram (Vigna mungo(L.) Hepper)

An experiment was carried out to study the response of integrated nutrient supply (IPNS) on yield traits of maize e.g., total number of cobs in net plot, cob weight (q ha−1), number of rows/cob, number of grains/row, number of grains/cob and 1000 grain weight on average basis ranged from 57.07 to 71.67 thousand ha−1, 38.85 to 60.62 q ha−1, 13.47 to 17.16, 32.70 to 35.07, 415.29 to 566.93 and 170.70 to 224.86 g, respectively. The values of these parameters recorded highest under treatment T3 (FYM + Chem.) which were at par with T8 (Azotobacter + Rhizobium + PSB + FYM + Chem.) and these were significantly superior to rest of the treatments during both the years of study. Grain yield 33.13 to 52.56 q ha−1, stover yield 40.32 to 60.76 q ha−1, total biological yield 73.44 to 113.32 q ha−1, grain: strover ratio and harvest index of maize on an average ranged from 0.82 to 0.87 and 45.11 to 46.38%, respectively. In these parameters, significant increase was recorded in the treatments received organic, inorganic and bio-fertilizer sources of nutrients in combined form.