Vol. 5, Issue 7, Part E (2019)

Abstract
A field experiment was conducted to study the integrated nutrient management in order to enhance the productivity of soybean under rainfed condition. The experiment was laid out in split plot design with twelve total treatment combinations which consists of three level of farm yard manure (5, 10 and 15 t ha-1) and four levels of recommended dose of fertilizers viz. 0, 50, 100 and 150 percent of nitrogen, phosphorus and potassium. In General, application of different levels of Farm Yard Manure (FYM) and Recommended Dose of Fertilizer (RDF) significantly influenced on the growth and yield of soybean and also nutrient uptake and nutrient content in soil. Significantly higher seed yield (1949 kg ha-1), haulm yield (3163 kg ha-1), biological yield (5113 kg ha-1) and NPK uptake (107, 35.3 and 96.8 kg ha-1) was observed in treatment with the application of FYM @15 t ha-1, followed by 10 t ha-1 as compared to 5 t ha-1. Similarly, Application of 150 percent recommended dose of fertilizer showed significantly higher seed yield (2447 kg ha-1), haulm yield (3753 kg ha-1), biological yield (6200 kg ha-1) and NPK uptake (131.3, 44.7 and 111.5 kg ha-1, respectively).The interaction effect was found significant, among different treatment combinations, application of 15 t FYM + 150 % RDF ha-1 recorded significantly higher seed yield (2490 kg ha-1), haulm yield (4067 kg ha-1), biological yield (6557 kg ha-1) and NPK uptake (136.4, 48.1 and 118.7 kg ha-1). Seed yield had significantly positive correlation with haulm yield (r = 0.9326*), biological yield (r = 0.9761*), number of seeds per pod (r = 0.8635*), seed weight per plant (r = 0.9354*), number of pods per plant (r = 0.8256*), test weight (r = 0.9681*) and pod length (r = 0.9736*) respectively. However, the higher benefit cost ratio (2.87) was observed in treatment with the application of 5 t FYM ha-1 + 150 % RDF.