Vol. 6, Issue 4 (2018)
Effect of integrated weed management practices on growth and yield of maize (Zea mays L) in Uttarakhand
Author(s): Arun Kumar M and Deepak Prajapati
Abstract: Field experiment was conducted at Uttaranchal University Experimental Farm, Dehradun to evaluate the effect of integrated weed management in Maize during Kharif 2017. The experiment was laid out in randomized block design (RBD) with seven treatments and three replications by using Kanchan variety. The treatment comprises of Control (weedy check) (T1), Atrazine 1 kg ha-1 as pre-emergence herbicide at 3 DAS + hand weeding at 40 DAS (T2), 2, 4-D 0.5 kg ha-1 as post-emergence at 21 DAS + hand weeding at 40 DAS (T3), Atrazine 1 kg ha-1 as pre-emergence herbicide at 3 DAS + 2, 4-D 0.5 kg ha-1 as post-emergence at 21 DAS (T4), Atrazine 1 kg ha-1 as pre-emergence herbicide at 3 DAS + Mulching (T5), 2, 4-D 0.5 kg ha-1 as post-emergence at 21 DAS + Mulching (T6), Weed free plot (T7). The soil of the experimental field was alluvial soil which low in available nitrogen, medium in available phosphorus and high in available potassium. The result of the study clearly showed that 2, 4-D 0.5 kg ha-1 as post-emergence at 21 DAS + hand weeding at 40 DAS (T3) significantly increases the growth and yield components of Maize. These treatments were significantly superior with the rest in reducing the weed infestation and ultimately increasing the cobs yield. So it may be concluded that application of Atrazine 1 kg ha-1 as pre-emergence herbicide at 3 DAS and one hand weeding on 40 DAS is considered to be a judicious recommendation to control weeds to maize.
Pages: 2895-2897 | 345 Views 52 Downloads
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How to cite this article:
Arun Kumar M, Deepak Prajapati. Effect of integrated weed management practices on growth and yield of maize (Zea mays L) in Uttarakhand. Int J Chem Stud 2018;6(4):2895-2897.
