Growth and grain yield of winter mungbean (Vigna radiata L. Wilczek) as influenced by Rhizobium inoculation, sulphur and plant geometry

A field experiment was conducted at Chemphai Agricultural farm, Krishi Vigyan Kendra, Kolasib, Mizoram during two years (2011 and 2012) to study the influence of Rhizobium inoculation, sulphur and plant geometry on growth and grain yield of winter mungbean ‘HUM-2’. Three main plot treatments involving plant geometry (20x 10cm, 25x10cm and 30x 10cm), four levels of sulphur in sub plot treatments (control, 15, 30 and 45 kg S/ha) and two levels of Rhizobium inoculation (control and inoculation) in sub-sub plot were laid out in a split-split plot with three replications (24 treatment combinations). The study showed that for obtaining higher grain yield in winter grown mungbean, application of both Rhizobium inoculation and 30 kg S/ha could be optimum when the crop was sown at a plant geometry of 25x10cm. The second best treatment was the treatment combination involving a relatively closer spacing of 20x10cm plant geometry, application of 30 kg S/ha and Rhizobium inoculation.