Vol. 12, Issue 8 (2023)

Author(s):
Nancy Khwairakpam, Luikham Edwin, Jamkhogin Lhungdim, Herojit Singh Athokpam, N Brajendra Singh, N Okendro Singh, N Anando Singh, Herojit Khaidem, MM Rifana Ajam, Surbani Laishram, G Prameshchandra Sharma, Heisnam Henarita, B Keyeang, Thangneibong Serto, O Yaiphabee and M Puja Devi

Abstract:
During the kharif season 2022, a field experiment was carried out at the College of Agriculture, Central Agricultural University, Imphal, Manipur. The experiment consisted of 8 treatments i.e. T₁ (hand weeding at 20 and 40 DAS), T₂ (rice husk @ 10 t/ha), T₃ (pendimethalin @ 1 kg/ha), T₄ (imazethapyr @ 0.07 kg/ha), T₅ (imazethapyr @ 0.08 kg/ha), T₆ (pendimethalin @ 1 kg/ha fb imazethapyr @ 0.07 kg/ha), T₇ (pendimethalin @ 1 kg/ha fb imazethapyr @ 0.08 kg/ha), T₈ (weedy check/control) was laid out in randomized block design replicated thrice. Blackgram variety Pant U31 was sown with the spacing 30 cm x 15 cm utilizing 20 kg of seed per hectare fertilized with the recommended dose of N:P₂O₅:K₂O i.e. 20:40:20 kg per hectare. The treatment pendimethalin @ 1 kg/ha fb imazethapyr @ 0.08 kg/ha followed by treatment T₁ (hand weeding at 20 and 40 DAS) which was statistically on par with each other were found out to be most effective weed management practices for blackgram in respect of obtaining the lowest weed count/m², highest WCE as well as lowest fresh and dry weight of the weeds.