Impact of Different Plant Spacing Arrangements on the Profitability and Productivity of Blackgram Cultivars [Vigna mungo (L.) Hepper]

Evaluation of blackgram cultivars (Vigna mungo (L.) Hepper) under various plant spacings was the title of a field study carried out at the Department of Agronomy, College of Agriculture, Badnapur. The experimental field had good drainage and was leveled. The soil was clay loam in texture, low in available nitrogen, medium in available phosphorus, very high in accessible potassium and alkaline in reactivity. The blackgram crop was able to develop and mature normally due to the moderate environmental conditions. Twelve treatment combinations were possible with the three different kinds and four different spacings used in the Factorial Split plot Design layout of the experiment. Each experimental unit included three repetitions, measuring 5.4 m × 5.0 m in the gross plot and 4.5 m x 4.6 m in the net plot. On July 14, 2015, three varieties-BDU-1, TAU-1 and AKU-15 were sown. The dibbling method was used to sow the seeds, with four distinct spacings of 30 cm x 10 cm, 30 cm x 20 cm, and 45 cm x 10 cm. The RDF was used prior to seeding. Plant preservation measures and cultural practices were implemented in accordance with recommendations. A number of pods per plant, number of seeds per pod, pod length, pod weight per plant, seed yield per plant, test weight (1000 seed weight g), harvest index, gross monetary returns (Rs ha-1), net monetary returns (Rs ha-1), and Benefit: Cost (B: C) ratio are among the characteristics and economics that indicate that BDU-1 (V1) produced a significantly higher yield among the different blackgram varieties. Variety x spacing interaction effects were shown to be non-significant.