江苏农业学报2025，Vol.41Issue(12)：2359-2370,12.DOI:10.3969/j.issn.1000-4440.2025.12.009
不同灌溉量条件下有机肥氮替代化肥氮对棉花生长、土壤养分含量及产量的影响
Effects of substituting chemical fertilizer nitrogen with organic manure ni-trogen on cotton growth,soil nutrient content,and yield under different irrigation levels
摘要
Abstract
To investigate the effects of replacing chemical fertilizer nitrogen(N)with organic fertilizer N under di-fferent irrigation levels on cotton growth and development,soil nutrient content,and yield in cotton fields,and to determine the optimal water and fertilizer management strategy for stable yields and improved soil physicochemical properties in arid regions,a field experiment was conducted in the Modern Agricultural Industrial Park of Bachu County,Xinjiang Uygur Autonomous Region.The experiment in-cluded two irrigation treatments:water-saving irrigation(W1)and conventional irrigation(W2),and five fertili-zation treatments:conventional chemical fertilizer application(CF),15％substitution of chemical fertilizer nitrogen with organic manure nitrogen(T15),30％substitution of chemical fertilizer nitrogen with organic manure nitrogen(T30),45％substitution of chemical fertilizer nitrogen with organic manure nitrogen(T45),and 60％substitution of chemical fertilizer nitrogen with organic manure nitrogen(T60).The results showed that under water-saving irrigation,cotton plant height,aboveground biomass,theoretical seed cotton yield,and theoretical lint yield were generally superior to those observed in the corresponding treatments under conventional irrigation.The T60 treatment generally demonstrated superior performance compared to the T15,T30,and T45 treatments across multiple parameters,including plant height,leaf area index,relative chlorophyll content,and aboveground biomass.The contents of soil total nitrogen,organic matter,alkali-hydrolyzable nitro-gen,available phosphorus,and available potassium generally exhibited a decreasing trend with increasing soil depth,with nutrients predominantly concentrated in the topsoil.Under both irrigation conditions,higher substitution ratios of organic manure nitrogen for chemical fertilizer nitrogen demonstrated a positive effect on enhancing soil organic matter content com-pared to the CF treatment.Furthermore,water use efficiency under water-saving irrigation was significantly higher than that under conventional irrigation,and the overall level of theoretical seed cotton yield also exceeded that under conventional ir-rigation conditions.Compared to the CF treatment,the T60 treatment demonstrated more pronounced advantages in the number of bolls per plant,theoretical seed cotton yield,and theoretical lint cotton yield under both irrigation conditions.In summary,the results of this study indicate that under water-saving irrigation conditions,the fertilization strategy of substitu-ting 60％of chemical fertilizer nitrogen with organic manure nitrogen represents the optimal approach for promoting cotton plant growth,ensuring stable cotton yield,and improving soil nutrient content.关键词
棉花/有机肥/化肥/灌溉量/生长指标/土壤养分/产量Key words
cotton/organic manure/chemical fertilizer/irrigation level/growth indicators/soil nutrients/yield分类
农业科技引用本文复制引用
刘鹏,袁川,曲佐昊,张茜,张振飞,颜安..不同灌溉量条件下有机肥氮替代化肥氮对棉花生长、土壤养分含量及产量的影响[J].江苏农业学报,2025,41(12):2359-2370,12.基金项目
国家自然科学基金项目(32160527) （32160527）
新疆维吾尔自治区青年科技拔尖人才项目(2022TSYCCX0044) （2022TSYCCX0044）
