Author(s):

Manisha Bhaskar, Khiromani Nag, Samir Kumar Tamrakar and Madan Jha

Abstract: The present investigation “Effect of weed control methods on gladiolus (Gladiolus grandiflorus L.) cv. American Beauty” was conducted in the Department of Floriculture and Landscape Architecture, College of Agriculture, Indira Gandhi Agricultural University, Raipur, Chhattisgarh during the rabiseason of year 2017-18. The experiment consisted of 11 treatment combinations of different weed control treatments viz. Pendimethalin 30% EC @ 1.0 kg a.i. ha^-1 (PE) + hand weeding at 30 DAP (T₁), Pendimethalin 30% EC @ 2.0 kg a.i. ha^-1 (PE) + hand weeding at 30 DAP (T₂), Oxyfluorfen 23.5% EC @ 0.25 kg a.i. ha^-1 (PE) + hand weeding at 30 DAP (T₃), Oxyfluorfen 23.5% EC @ 0.50 kg a.i. ha^-1 (PE) + hand weeding at 30 DAP(T₄), Pendimethalin 30% EC @ 1.0 kg a.i. ha^-1 (PE) + Fenoxaprop-p-ethyl 9.3% EC @ 0.10 kg a.i. ha^-1 at 30 DAP (PoE) (T₅), Pendimethalin 30% EC @ 2.0 kg a.i. ha^-1 (PE) + Fenoxaprop-p-ethyl 9.3% EC @ 0.10 kg a.i. ha^-1 at 30 DAP (PoE) (T₆),Oxyfluorfen 23.5% EC @ 0.25 kg a.i. ha^-1 (PE) + Fenoxaprop-p-ethyl 9.3% EC @ 0.10 kg a.i. ha^-1 at 30 DAP (PoE) (T₇), Oxyfluorfen 23.5% EC @ 0.50 kg a.i. ha^-1 (PE) + Fenoxaprop-p-ethyl 9.3% EC @ 0.10 kg a.i. ha^-1 at 30 DAP (PoE) (T₈), One Hand Weeding at 30 DAP (T₉), Two Hand Weeding at 30 and 650 DAP (T₁₀) and Un weeded (Control) (T₁₁). On the basis of economic assessment of various treatments, it may be inferred that application of Pendimethalin 30% EC @ 1.0 kg a.i. ha^-1 (PE) followed by one Hand Weeding at 30 DAT gave the highest additional profit of Rs. 1659254.0 hectare^-1 as well as the highest B:C ratio (1: 2.73) followed by Oxyfluorfen 23.5% EC @ 0.25 kg a.i. ha^-1 (PE) + hand weeding at 30 DAP with 1: 2.38 B: C Ratio as compared to other treatments. The minimum B:C ratio of 1.00 was recorded at control.

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