Regulated Deficit Irrigation for Transplanted Cotton after Winter Wheat Harvest

【Background】 The Yellow River basin is one of the most important grain and cotton production bases in China, with wheat-cotton rotation as one of the dominant cultivation methods in which inter-wheat rows are reserved for cotton drilling. Such cultivation, however, reduces wheat yield and damages th...

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Published inGuanʻgai paishui xuebao Vol. 40; no. 5; pp. 8 - 15
Main Authors YU Xuan, LIU Hao, MA Yanchuan, GENG Yun, FENG Quanqing, SUN Jingsheng
Format Journal Article
LanguageChinese
Published Science Press 01.05.2021
Subjects
cotton transplanting
cotton yield
drip irrigation
fiber quality
irrigation water utilization efficiency
wheat-cotton rotation
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Summary:【Background】 The Yellow River basin is one of the most important grain and cotton production bases in China, with wheat-cotton rotation as one of the dominant cultivation methods in which inter-wheat rows are reserved for cotton drilling. Such cultivation, however, reduces wheat yield and damages the cotton seedlings when harvesting the wheat. As an improved agronomic practice, transplanting the cotton after wheat harvest rather than directly drilling it has become increasingly popular due to its convenience for machine harvesting without compromising cotton yield. The transplantation reduces the growth duration of the cotton in the field and makes it more sensitive to soil moisture. Regulating water deficit is hence particularly important for transplanted cotton. 【Objective】 This paper is to experimentally seek suitable regulated deficit irrigation for transplanted cottons in Yellow river basin. 【Method】 The experiment was conducted in a field with different water deficits imposed at bud stage, or blossoming
ISSN:1672-3317
DOI:10.13522/j.cnki.ggps.2020527