Bikramjeet Singh and Gagandeep Singh
A field experiment was conducted during kharif 2019 at Research Farm, Guru Kashi University, Talwandi Sabo, Bathinda (Punjab) to check the effect of rhizobium inoculation in relation with nitrogen levels on the performance of green gram. The trial was laid in split plot design with two rhizobium levels viz., 0 and 350 g ha-1 in main plot and four nitrogen levels 0 kg ha -1, 6 kg ha-1, 12 kg ha-1, and 18 kg ha-1 in sub plot. Rhizobium seed inoculation significantly increased the plant growth parameters viz., plant height, dry matter accumulation, number of branches and number of nodules/plant and yield attributing characters viz., number of pods/plants, number of seeds/pod and test weight in green gram. Rhizobium seed inoculation recorded highest seed yield (1435 kg/ha) which was significantly higher than control (1293 kg/ha). Rhizobium seed inoculation results in 10.9% higher seed yield than control. Application of 18 kg N/ha recorded higher plant growth parameters viz., plant height, dry matter accumulation, number of branches and number of nodules/plant and yield attributing characters viz., pod length and number of seeds/pods in green gram. Application of 12 kg N/ha (1523 kg/ha) and 18 kg N/ha (1469 kg/ha) gave the statistically similar seed yields which were significantly higher than control (1083 kg/ha) and 6 kg N/ha (1382 kg/ha). Nitrogen @ 12 kg N/ha recorded 40.6, 10.2 and 3.69% higher seed yield than control, 6 and 18 kg N/ha, respectively.
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