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Studies on crop-weed competition in kharif onion (Allium cepa L.)

机译:海里葱(Allium cepa L.)作物杂草竞争研究

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摘要

Recently, onion cultivation has been introduced during rainy season in central tract of Uttar Pradesh. Weed infestations become more severe in rainy season owing to frequent rains, Congenial temperatures and humidity for their growth. Ecological studies related to crop-weed competition in onion crop grown especially during rainy season have not been adequately done so far. Since weed competition is mainly governed by types of weed flora, edaphic and climatic variations prevailing in the region, it is imperative to decide critical period of weed competition in onion raised during rainy season.
机译:最近,在北方邦中部雨季已引入洋葱栽培。由于雨季频繁,生长适宜的温度和湿度,在雨季杂草侵扰变得更加严重。到目前为止,尚未对与洋葱杂草竞争有关的生态学研究进行足够的研究,尤其是在雨季期间,这种作物与杂草竞争有关。由于杂草竞争主要受该地区杂草菌群类型,环境和气候变化的支配,因此必须确定雨季洋葱洋葱杂草竞争的关键时期。

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