WEED DYNAMICS AND PRODUCTIVITY OF CHICKPEA AS AFFECTED BY WEED MANAGEMENT PRACTICES

Q4 Environmental Science
Swati Shiv, S. Agrawal, Badal Verma, Pushpendra SINGH YADAV, Richa Singh, Muskan Porwal, J. Sisodiya, Raghav Patel
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引用次数: 1

Abstract

Rabi pulses are typically cultivated on marginal cropland with little maintenance. Weed growth has greater space to grow during the initial slow vegetative phase of crop. Crop weed competition results in resource distribution, which significantly reduces crop yield. To understand the effect of different weed management practices on weed dynamics and productivity of chickpea, a field experiment was conducted at Forestry Research Farm, Department of Forestry, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (MP) during the Rabi season of 2020-21. The field experiment was laid out in randomized block design (RBD) with nine treatments and replicated thrice. Nine treatments were pendimethalin at 1000 g/ha, atrazine at 1000 g/ha, oxyflorfen at 100 g/ha, imazethapyr at 900 g/ha, pendimethalin at 500 g/ha + oxyflorfen at 50 g/ha, pendimethalin at 500 g/ha + imazethapyr at 450 g/ha, imazethapyr at 450 g/ha + atrazine at 500 g/ha, including hand weeding at 30 DAS and weedy check. The broad-leaf weeds, Medicago denticulate, Chenopodium album, Vicia sativa (L.) and Anagallis arvensis (L.) were dominant. In the case of grassy weeds, Cyperus rotundus (L.), Cynodon dactylon (Pers.) and Avena fatua (L.) are dominant weeds. Significant reduction in total weed density and dry weight was recorded under the application of pendimethalin at 500 g/ha + imazethapyr at 450 g/ha. In comparison, high values of growth parameters and seed yield were recorded with the application of pendimethalin at 1000 g/ha.
杂草管理措施对鹰嘴豆杂草动态和生产力的影响
拉比豆类通常在边缘农田种植,几乎不需要维护。在作物生长缓慢的初始营养阶段,杂草的生长空间较大。作物杂草竞争导致资源分配,显著降低作物产量。为了解不同杂草管理措施对鹰嘴豆杂草动态和生产力的影响,于2020-21年拉比季在贾瓦尔普尔(MP)贾瓦哈拉尔尼赫鲁克里什Vishwa Vidyalaya林业部林业研究农场进行了一项田间试验。田间试验采用随机区组设计(RBD),共9个处理,重复3次。九种处理分别为:喷甲醚1000克/公顷、阿特拉津1000克/公顷、氧氟醚100克/公顷、氟甲醚900克/公顷、喷甲醚500克/公顷+氟甲醚50克/公顷、喷甲醚500克/公顷+氟甲醚450克/公顷、喷甲醚450克/公顷+阿特拉津500克/公顷,包括30das手工除草和杂草检查。以阔叶杂草、有齿紫花苜蓿、藜草、紫花苜蓿和刺尾草为主。禾草类杂草中,优势杂草为圆草(Cyperus rotundus)、长草(Cynodon dactylon)和绿草(Avena fatua)。施用500 g/ hm2的戊二甲基灵+ 450 g/ hm2的咪唑吡韦显著降低了杂草总密度和干重。相比之下,施用1000 g/ hm2的戊二甲基灵的生长参数和种子产量都很高。
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来源期刊
Pollution Research
Pollution Research Environmental Science-Water Science and Technology
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期刊介绍: POLLUTION RESEARCH is one of the leading enviromental journals in world and is widely subscribed in India and abroad by Institutions and Individuals in Industry, Research and Govt. Departments.
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