干旱地区农业研究2025，Vol.43Issue(5)：120-128,9.DOI:10.7606/j.issn.1000-7601.2025.05.12
碳氮配施比例对残膜污染棉田棉花光合产物积累及产量的影响
Effects of carbon and nitrogen application ratio on the accumulation of photosynthetic products and yield of cotton in residual film-contaminated cotton fields
摘要
Abstract
To investigate the effects of carbon-to-nitrogen application ratio on the accumulation of photosyn-thetic products and yield in cotton fields contaminated with residual plastic film,a two-year field trial was conducted in a typical residual film contaminated area of Xinjiang from 2023 to 2024.Using'Zhongmian 113'as the experimental material,cow manure compost(C∶N=12∶1)and inorganic fertilizer(urea)were employed.Under equal nitrogen application rate(375 kg·hm-2),four different carbon-to-nitrogen ratio fertilizers were for-mulated.The ratios were 0∶1(CF),3∶1(OF1),6∶1(OF2),and 9∶1(OF3),with a control group receiv-ing no nitrogen fertilizer(CK).The study analyzed the effects of different carbon-to-nitrogen ratios on dry matter accumulation,distribution,and yield formation in residual film-contaminated cotton fields.The research results of two years showed that different carbon-nitrogen application ratios have a certain promotional effect on cotton growth,above-ground dry matter accumulation and distribution,increasing the number of bolls per plant and boll quality,which was conducive to improving cotton yield.As the carbon-to-nitrogen ratio increases,the accumulation of dry matter during the cotton growth period,the accumulation of dry matter in reproductive organs,and lint yield exhibi-ted a trend of first significantly increasing and then significantly decreasing,with all showing the pattern OF2＞OF3＞OF1＞CF.Compared with other carbon-to-nitrogen ratios,the average plant height,stem thickness,number of leaves,and number of fruit branches were on average 3.66％,1.07％,0.97％,and 1.22％higher than the CF treatment,respectively.The rapid accumulation rate of dry matter was higher,and the dry matter accumulation in-creased by 7.50％and 10.35％,respectively,compared with the 0∶1(CF)treatment and no nitrogen fertilizer(CK)treatment.The distribution ratio to reproductive organs increased by 5.58％～15.63％compared with other treatments,and the number of bolls per plant and single boll weight of OF2 increased by 9.41％and 5.52％,re-spectively,compared to the CF treatment,resulting in a 9.93％to 33.46％increase in lint yield compared to other treatments.Furthermore,correlation analysis revealed that the most significant correlations were observed between seed cotton yield and dry matter accumulation,boll number,accumulation in vegetative organs,and accumulation in reproductive organs.These results indicated that a carbon-to-nitrogen ratio of 6∶1 has a positive effect on cotton growth,above-ground dry matter accumulation and distribution,increasing the number of bolls per plant and boll weight,thereby contributing to higher cotton yields.关键词
棉花/残膜污染棉田/碳氮配施比例/干物质积累/产量Key words
cotton/residual film contamination of cotton fields/carbon-nitrogen application ratio/dry matter accumulation/yield分类
农业科技引用本文复制引用
王事,段淯水,张昊,汤秋香,吴凤全,吴浩玉,刘柯鑫,刘晓伟,林涛,高岗,印彩霞,陈柏青..碳氮配施比例对残膜污染棉田棉花光合产物积累及产量的影响[J].干旱地区农业研究,2025,43(5):120-128,9.基金项目
国家自然科学基金(32260542) （32260542）
新疆维吾尔自治区重点研发专项(2022B02033-1) （2022B02033-1）
国家现代农业产业技术体系-棉花产业技术体系(CARS-15-13) （CARS-15-13）
新疆现代农业产业技术体系-棉花产业技术体系(XIARS-03) （XIARS-03）
新疆"天山英才"培养计划青年拔尖人才项目(2023TSYCCX0019) （2023TSYCCX0019）
新疆农业大学大学生创新项目(dxscx2023004) （dxscx2023004）
