Effect of sowing date and spacing on growth and yield of mung bean (Vigna radiata L.)

A field experiment was conducted during Kharif 2023 at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P). The soil of experiment plot was sandy loam in texture, nearly neutral in soil reaction (pH 7.8), low in organic carbon (0.62%), available N (182 kg/ha), available P (32.2 kg/ha), available K (240.7 kg/ha). The experiment was laid out in Randomize Block Design with nine treatments each replicated. The treatment combinations are mentioned as T1: 2nd fortnight of June + Spacing 20 cm × 10 cm, T2: 2nd fortnight of June + Spacing 30 cm × 10 cm, T3: 2nd fortnight of June + Spacing 40 cm × 10 cm, T4: 1st fortnight of July + Spacing 20 cm × 10 cm, T5: 1st fortnight of July + Spacing 30 cm × 10 cm, T6: 1st fortnight of July + Spacing 40 cm × 10 cm, T7: 2nd fortnight of July + Spacing 20 cm × 10 cm, T8: 2nd fortnight of July + Spacing 30 cm × 10 cm, T9: 2nd fortnight of July + Spacing 40 cm × 10 cm. The results showed that sowing on 1st fortnight of July at 30 cm×10 cm (Treatment 5) recorded highest maximum plant height (64.58), dry weight (10.56), number of pods per plant (14.68), number of seeds per pod (8.64), test weight (44.53 g), seed yield (1.88 t/ha). The before said treatment also recorded maximum gross return (Rs. 1, 35, 476.41/ha), net return (Rs. 98,140.41/ha) and B: C ratio (2.63).