Vol. 12, Issue 8 (2023)

The research trial was laid out in split-split plot design with three replications. The experiment consisted of nine treatment combinations, comprising of three sowing dates viz., 16 December, 31 December and 15 January in main plot and three spacing like 30 x 10 cm, 45 x 10 cm and 60 x 10 cm in sub plot and three varieties are AMS 100-39, RSC 10-46 and KDS-753 in sub-sub plot.

The experimental results revealed that growth characters viz., plant height, number of branches plant^-1, leaf area plant^-1, dry matter accumulation plant^-1 and number of root nodules plant^-1 were extensively greater in early sown crop of 16 December and variety RSC 10-46. Plant height was higher with spacing 30 x 10 cm where as 60 x 10 cm was superior in, number of branches plant^-1, leaf area plant^-1, dry matter accumulation plant^-1 and number of root nodules plant^-1.

Furthermore, the seed yield and stover yield were significantly maximum in 16 December sowing, 45 x 10 cm spacing and RSC 10-46 variety and significantly higher than other sowing dates, spacing and varieties. Delayed sowing in 31 December and 15 January showed radically inferior growth and yield attributes of soybean.