Vol. 12, Issue 5 (2023)

Author(s):
Kanishka

Abstract:
The field experiment entitled “Role of planting patterns and weed control treatments on growth and development of Black gram” (Vigna mungo L.) was conducted during the spring season of 2022 on the research farm of the School of Agriculture, Lovely Professional University, Phagwara (Punjab). The experiment was laid out in Split-Plot Design with four replications. Three main plot treatments (planting pattern) viz., M1: Row sowing, M2: Bed sowing, and M3: Cross sowing and four weed control treatments in subplots viz., T1: Stomp 30 EC (pendimethalin 0.75 kg /ha), pre em, T2: Stomp 30 EC (pendimethalin 0.45 kg /ha), T3: One hand weeding at 25 days after sowing, T4: Unweeded (control) were kept. The experiment was laid out in Split-Plot Design with four replications. Among planting patterns total weed count and dry matter was observed to be at par among bed planting and cross sowing and both these techniques produced significantly higher weed count and their dry matter than row sowing. Significantly low weed count and dry matter accumulation by weed control treatments was obtained under one hand weeding at 25 DAS, Stomp 30 EC (pendimethalin 0.75 kg /ha), pre em., Stomp 30 EC (pendimethalin 0.45 kg /ha), pre em. and as compared to unweeded (control). Dry matter of weeds recorded at the time of harvest was found to be at par among bed planting and cross sowing and significantly less than flat sowing. All weed control treatments significantly reduced weed dry matter than control. The plant height was significantly more under cross sowing than row sowing and bed sowing. Stomp 30 EC (pendimethalin 0.75 kg /ha), pre em. recorded the significantly highest plant height among all weed control treatments. The dry matter accumulation by plant was found to be more in control which was significantly better than Stomp 30 EC (pendimethalin 0.45 kg /ha), pre em., one hand weeding, Stomp 30 EC (pendimethalin 0.75 kg /ha). All the growth and yield attributes were found to be significantly higher in bed planting and cross among main plots and in pendimethalin (0.75 and 0.45 kg/ha) and one hand weeding than control among sub plots. Significantly higher seed yield was recorded under the bed sowing (9.12 q/ha) method of planting pattern than cross (9.11 q/ha) and row sowing method (8.11 q/ha). The yield under bed sowing was 10 percent higher than cross sowing and flat sowing techniques. In different weed control treatments, the higher seed yield was recorded under Stomp 30 EC (pendimethalin 0.75 kg /ha), pre em. (11.12 q/ha) and lowest seed yield was observed under unweeded control (6.47 q/ha) which was significantly less than other weed control treatments.