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Effect of Integrated Weed Management on Growth, Yield and Economic Returns on Onion (Allium cepa L.)


Affiliations
1 Krishi Vigyan Kendra (Dr. P.D.K.V.), Yavatmal (M.S.), India
2 Vasantrao Naik College of Agricultural Biotechnology (Dr. P.D.K.V.), Yavatmal (M.S.), India
     

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A field experiment on integrated weed management was conducted during the Rabi season of 2015-16 at the farm of KVK, Yavatmal. The experiment was conducted in Randomized Block Design with six treatments and four replications. Treatments comprised of T1-One hand weeding at 20 days after planting of seedlings, T2-Two hand weedings at 20 and 40 DAT, T3-Three hand weeding at 20, 40 and 60 DAT, T4-Spraying of herbicide oxyfluorfen 23.5% EC 0.1-0.15 kg a.i./ha 15-20 DAT+1 HW at 45 DAT, T5-Spraying Oxyfluorfen 23.5% EC 0.1-0.15 kg a.i./ha before planting+1 HW at 40-60 DAT and T6-Control check i.e. without weed control practices. The experiment was carried out in order to evaluate best weed management practices in situation of limited weedicide registered in label claim. The observations on effect of IWM practices on weed parameters, crop growth, bulbs yield were recorded. Minimum weed count and dry matter of weed at 90 DAT with highest weed control efficiency was recorded by the treatment T4-where spraying of herbicide oxyfluorfen 23.5% EC 0.1-0.15 kg a.i./ha 15-20 DAT+1 HW at 45 DAT. Regarding the plant growth and bulb yield parameters, the treatment T4-where spraying of herbicide oxyfluorfen 23.5% EC 0.1-0.15 kg a.i./ha 15-20 DAT+1 HW at 45 DAT was found significantly superior over all the treatments as recorded maximum plant height, neck thickness, dry matter weight of plant, bulb diameter, fresh weight of bulb, cured weight of bulb, bulb yield per plot and per ha. Treatment T4 obtained maximum yield and thereby recorded highest gross return as well as net return and scored highest cost benefit ratio 1:2.09. However, treatment T5-SprayingOxyfluorfen 23.5% EC 0.1-0.15 kg a.i./ha before planting+1 HW at 40-60 DAT ranked second in control of weed growth and gained the higher bulb yield with monetary returns.

Keywords

IWM, Onion, Weed, Oxyfluorfen, Hand Weeding, Yield.
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  • Effect of Integrated Weed Management on Growth, Yield and Economic Returns on Onion (Allium cepa L.)

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Authors

Anjali M. Gaharwar
Krishi Vigyan Kendra (Dr. P.D.K.V.), Yavatmal (M.S.), India
Nilima Patil
Krishi Vigyan Kendra (Dr. P.D.K.V.), Yavatmal (M.S.), India
Jayashri D. Ughade
Vasantrao Naik College of Agricultural Biotechnology (Dr. P.D.K.V.), Yavatmal (M.S.), India

Abstract


A field experiment on integrated weed management was conducted during the Rabi season of 2015-16 at the farm of KVK, Yavatmal. The experiment was conducted in Randomized Block Design with six treatments and four replications. Treatments comprised of T1-One hand weeding at 20 days after planting of seedlings, T2-Two hand weedings at 20 and 40 DAT, T3-Three hand weeding at 20, 40 and 60 DAT, T4-Spraying of herbicide oxyfluorfen 23.5% EC 0.1-0.15 kg a.i./ha 15-20 DAT+1 HW at 45 DAT, T5-Spraying Oxyfluorfen 23.5% EC 0.1-0.15 kg a.i./ha before planting+1 HW at 40-60 DAT and T6-Control check i.e. without weed control practices. The experiment was carried out in order to evaluate best weed management practices in situation of limited weedicide registered in label claim. The observations on effect of IWM practices on weed parameters, crop growth, bulbs yield were recorded. Minimum weed count and dry matter of weed at 90 DAT with highest weed control efficiency was recorded by the treatment T4-where spraying of herbicide oxyfluorfen 23.5% EC 0.1-0.15 kg a.i./ha 15-20 DAT+1 HW at 45 DAT. Regarding the plant growth and bulb yield parameters, the treatment T4-where spraying of herbicide oxyfluorfen 23.5% EC 0.1-0.15 kg a.i./ha 15-20 DAT+1 HW at 45 DAT was found significantly superior over all the treatments as recorded maximum plant height, neck thickness, dry matter weight of plant, bulb diameter, fresh weight of bulb, cured weight of bulb, bulb yield per plot and per ha. Treatment T4 obtained maximum yield and thereby recorded highest gross return as well as net return and scored highest cost benefit ratio 1:2.09. However, treatment T5-SprayingOxyfluorfen 23.5% EC 0.1-0.15 kg a.i./ha before planting+1 HW at 40-60 DAT ranked second in control of weed growth and gained the higher bulb yield with monetary returns.

Keywords


IWM, Onion, Weed, Oxyfluorfen, Hand Weeding, Yield.

References