Vol. 8, Issue 5 (2020)
To discuss the effect of various type of weed control practices on crop growth and yield of upland rice
Author(s): Kundan Kumar and Dr. Nitesh Kumar
Abstract: In the present work The object of experiment is to “study the efficacy of different weed control methods and to evaluate the most suitable and economical weed management practice for controlling weeds in upland rice adopted to achieve different agronomic practices” weed management practices with it included seed treatment, fertilizer scheduling and intercropping along its include achieve to for avoidance of weed occurrence, suppression of weed growth and enhancement of crop-competitive ability against weed. The experiment was laid out in randomized bock design was experiment with three replications and nine treatments. The net plot size was 3.50 x 2.60 m.sq. The experimental soil was slightly alkaline with sandy clay loam texture
Weed population at 60 DAS and at harvest to dry matter were significantly lower in weed free check followed by two hand weeding at 20 and 40 DAS, respectively. It was followed by butachlor pre-emergence application 50% EC @ 1.25 kg a.i. per ha + hand wedding at 40 DAS. Maximum dry matter of weed and weedy check observed in weed population. The measured growth of rice in terms of height, number of functional leaves, leaf area plant-1 and dry mater accumulation per plant was favorably influenced by weed free check and 20 and 40 DAS at two hand weeding. It was followed by application pre-emergence of butachlor 50% EC @ 1.25 kg a.i. per ha + hand wedding at 40 DAS. Similarly trend was observed in contributory character namely respect of yield, Number of panicles per m, sq. Number of grains per panicles, Grain weight per plant and 1000 grain weight i.e. test weight (g).
The highest in weedy check treatment was NPK uptake by weeds (9.05, 3.18and 11.27 kg NPK per ha respectively.) and weed free treatments lowest in (1.62, 0.407 and 1.687 kg NPK per ha respectively). It was followed by two hand weeding at 20 DAS & 40 DAS respectively (1.41, 0.537 and 2.160 kg NPK per ha respectively) followed by pre-emergence application of butachlor 50% EC @ 1.25 kg a.i. per ha + hand wedding at 40 DAS (2.16, 0.66 and 2.53 kg NPK per ha respectively.) The weed free check maximum gross monetary return was observed in (Rs.126378 per ha) followed by two hand weeding at 20 DAS & 40 DAS, respectively (Rs.120778 per ha).
DOI: 10.22271/chemi.2020.v8.i5ab.10605
Pages: 2048-2053 | 558 Views 125 Downloads
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How to cite this article:
Kundan Kumar, Dr. Nitesh Kumar. To discuss the effect of various type of weed control practices on crop growth and yield of upland rice. Int J Chem Stud 2020;8(5):2048-2053. DOI: 10.22271/chemi.2020.v8.i5ab.10605
