Journal of the Indian Society of Soil Science

A field experiment was conducted at the Experimental Farm of SKUAST (K), Shalimar, Kashmir to evaluate the performance of green gram under temperate conditions with inoculation of Rhizobium, VAM and N levels. The results indicate a significant improvement in nodule dry weight, rhizobial counts, root colonization, spore density, availability of N, P, K and yield of grain and straw of green gram over the control. Application of 15 kg N ha⁻¹ alone enhanced nodule dry weight and rhizobial counts over 30 kg N ha⁻¹ whereas application of 30 kg N ha⁻¹ significantly improved root colonization, spore density, available N and yield of grain and strawover 15 kg N ha⁻¹. An increase in yield of grain and straw was 17.8 and 17.1% due to application of 30 kg N ha⁻¹ over 15 kg N ha⁻¹. Interaction effect of Glomus fasciculatum x Rhizobium was most effective but at par with Glomus mosseae x Rhizobium. The highest grain and straw yield was recorded with Rhizobium along with 30 kg N ha⁻¹ and increase was about 4.6 and 4.2% over the Rhizobium x 15 kg N ha⁻¹. However, maximum nodule dry weight and rhizobial counts were observed with Rhizobium x 15 kg N ha⁻¹ but further successive increase in nitrogen levels caused significant decreases at both the stages of plant growth. The available N, P and K status in the soil increased by 6.65, 7.18 and 6.30% at flowering and 7.18, 14.82 and 6.20% at harvest over 30 kg N ha⁻¹ alone due to Rhizobium x 15 kg N ha⁻¹, respectively.