Performance of mungbean as influenced by organic practice and plant geometry on growth, yield and economics under NEH region of India

The experiment was carried out in the experimental farm of Krishi Vigyan Kendra (KVK), Kiphire, ICAR for NEH Region, Nagaland, India during winter 2019. The experiment was laid out in Factorial Randomized Block Design with three replications. Application of three tonnes of vermicompost + rhizobium had significant effect on the growth and yield parameters as compared with the rest of the treatments. Similarly, row-spacing 40 x 10 cm was better compared to 30 x 10 cm in terms of growth as well as yield parameters such as number of pods/plant, number of seeds/ pod and test weight. Soil organic C, p H, available N, P₂O₅, K₂O and N, P, K content and uptake by plant and grains were also recorded higher with the application of three tonnes of vermicompost + rhizobium and 40x10 cm spacing. However, in terms of grain yield, stover yield and harvest index, 30x10 cm outperformed compared to 40x10 cm. The economic analysis revealed that the combination of three tonnes of vermicompost + rhizobium with 40x10 cm and 30x10cm spacing had highest grain yield and gross return, however, the highest net return and B:C ratio were recorded with the combination of two tonnes of vermicompost + rhizobium with 30 x 10 spacing. Therefore, application of two tonnes of vermicompost + rhizobium and 30 x 10cm spacing were optimum under the existing condition.