Vol. 12, Issue 7 (2023)

Author(s):
Yamini Siwna, Jitendra Trivedi, Shreya Paikra and Reema Lautre

Abstract:
Five herbicides were analyses for controlling weeds in onion at the Horticultural Research and Instructional Farm, Indira Gandhi Agriculture University, Raipur (C.G.). The study report that efficacious weed control was under Oxyfluorfen 23.5% at 0.25 kg a.i./ha, Quizalofop-p-ethyl 5% EC at 75 g a.i./ha, Pendimethalin 30% EC at 1 kg a.i./ha, and manual weeding 40 days after transplanting with treatment T7 were considerably superior to other treatments. which was significantly reduced nutrient uptake by weed N (4.82 kg/ha), P (0.47 kg/ha), and K (0.44 kg/ha) and highest in control treatment T₁₀ N (57.16 kg/ha), P (7.17 kg/ha), and K (6.85 kg/ha). Uptake of nutrients (kg ha^-1) by the plant was significantly more with treatment less weed infested T₇ treatment with N (75.98 kg ha^-1), P (25.68 kg ha^-1), K (95.90 kg ha^-1) and S (34.44 kg ha^-1). The lowest value of nutrient uptake was recorded in treatment T₁₀ weedy check with N (11.01 kg ha^-1), P (3.84 kg ha^-1), K (13.25 kg ha^-1) and S (22.32 kg ha^-1) uptake by plant was significantly less due to high weed infestation in the plot.