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作 者:娄善伟[1,3] 董合忠 田晓莉[3] 田立文[1] LOU ShanWei;DONG HeZhong;TIAN XiaoLi;TIAN LiWen(Xinjiang Academy of Agricultural Sciences/National Engineering Research Center of Cotton,Urumqi 830091;Cotton Research Center,Shandong Academy of Agricultural Sciences,Jinan 250100;China Agricultural University,Beijing 100193)
机构地区:[1]新疆农业科学院/国家棉花工程技术研究中心,乌鲁木齐830091 [2]山东棉花研究中心,济南2501003 [3]中国农业大学,北京100193
出 处:《中国农业科学》2021年第4期720-732,共13页Scientia Agricultura Sinica
基 金:新疆农业科学院自主培育项目(nkyzztd-002,nkyzzkj-016)。
摘 要:新疆棉区通过多年研究和实践,于1994年前后形成基于合理密植、植株矮化、早发早熟的棉花"矮、密、早"栽培模式。该模式以促早发早熟为主攻目标,充分利用地膜覆盖、膜下滴灌、化学调控,以及机械化、信息化等技术手段,并与配套棉花品种结合,通过密植矮化促早管理,促进生长发育与光能利用同步,协调个体与群体矛盾;用群体效应增源、扩库,提高有效光合面积和光合生产能力;克服了春季低温、秋季降温快等不利环境影响。"矮、密、早"栽培模式实现了棉花早发早熟、高产优质,使新疆皮棉产量由1981年的511.5 kg·hm^(-2)提高到1994年的1 200.0 kg·hm^(-2),并于2019年达到1 966.5 kg·hm^(-2),年均增产7.2%以上,为中国和世界探寻高产栽培模式提供了典范。本文对"矮、密、早"栽培模式演进过程作了回顾,重点论述了该模式的技术内容和高产机理,并对该模式的发展作了展望,以期为今后棉花栽培模式的不断创新提供参考。Through years of research and practice, Xinjiang has formed a "short, dense, and early" cotton cultivation mode based on reasonable dense planting, dwarf plants, and early emergence and early maturity around 1994. The purpose of this mode was to promote early growth, fully utilize the technical methods of film mulching, drip irrigation, chemical regulation, mechanization, and informatization, and combine with cotton varieties, through dense planting and dwarf plants to promote the growth and development of cotton with synchronization of radiation use efficiency, and coordinate the contradiction between individuals and population of cotton. The group effect was used to increase the source and expand the sink to improve the effective photosynthetic area and photosynthetic production capacity, and to overcome adverse environmental impacts, such as low temperature in spring and rapid cooling in autumn. The "short, dense and early" cultivation mode could achieve early cotton maturity, high yield and high quality, which has increased Xinjiang’s lint yield per hectare from 511.5 kg in 1981 to 1 200 kg in 1994. Under this mode, a high yield of 1 966.5 kg was achieved in 2019, and the average annual yield increased by more than 7.2%, which provided a mode for China and the world to explore high-yield cultivation modes. This article reviewed the formation and evolution of the "short, dense, early" cultivation mode, focusing on the content and high-yield mechanism of the mode, and prospects for the development of the mode, in order to provide a reference for the continuous innovation of cotton cultivation modes in the future.
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