棉花学报2025，Vol.37Issue(6)：501-513,13.DOI:10.11963/cs20250050
再生水灌溉和不同覆盖方式对棉花生长发育、产量及纤维品质的影响
Effects of reclaimed water irrigation and different mulching methods on cotton growth and development,yield,and fiber quality
摘要
Abstract
[Objective]This research aimed to investigate the effects of reclaimed water irrigation and different mulching methods on cotton growth,yield,and fiber quality.[Methods]A field experiment was conducted in Hutubi County,Changji Hui Autonomous Prefecture,Xinjiang in 2024.Six treatments were established:well water irrigation throughout the whole growth stage+straw mulching(T1);reclaimed water irrigation throughout the whole growth stage+straw mulching(T2);reclaimed water irrigation at critical water-demand stages(squaring stage and flowering and boll-setting stage)+straw mulching(T3);reclaimed water irrigation throughout the whole growth stage+plastic film mulching(T4);reclaimed water irrigation at critical water-demand stages+plastic film mulching(T5);and well water irrigation throughout the whole growth stage+plastic film mulching(CK).Cotton plant height,stem diameter,leaf area index(LAI),yield traits,irrigation water use efficiency(IWUE),and fiber quality were compared across different treatments.The entropy-weighted technique for order preference by similarity to ideal solution(TOPSIS)method was used for comprehensive evaluation to select the optimal treatment.Meanwhile,the heavy metal contents in the soil and different cotton organs were determined and analyzed.[Results]During the flowering and boll-setting stage,and boll-opening stage,reclaimed water irrigation significantly increased plant height,stem diameter,and LAI compared with well water irrigation.The plant height,stem diameter,and LAI under straw mulching were greater than those under plastic film mulching;the T2 treatment exhibited the maximum plant height,stem diameter,and LAI.T2 also achieved the highest seed cotton yield,lint yield,and IWUE,and upper half mean length,breaking tenacity,breaking elongation,and micronaire of fiber of T2 were superior to those of other treatments.Comprehensive evaluation using entropy-weighted TOPSIS showed that the T2 treatment performed best.Compared with well water irrigation,reclaimed water irrigation significantly increased the contents of chromium(Cr)and lead(Pb)in the 0-60 cm soil layer and Cr content in cotton roots,stems,and leaves,while significantly reducing the arsenic(As)content in the 0-60 cm soil layer and cotton roots.However,the contents of mercury(Hg),cadmium(Cd),Cr,Pb,and As in soil and cotton plants under different treatments were all below the risk screening values.[Conclusion]Under the conditions of this experiment,the combination of reclaimed water irrigation throughout the whole growth stage and straw mulching showed the best comprehensive performance.关键词
棉花/再生水灌溉/覆盖方式/产量/纤维品质/重金属元素含量/TOPSISKey words
cotton/reclaimed water irrigation/mulching modes/yield/fiber quality/heavy metal content/TOPSIS引用本文复制引用
张博文,刘婧然,程艳,王悦,蔺尾燕,陈默,刘飞,柴蓓蓓..再生水灌溉和不同覆盖方式对棉花生长发育、产量及纤维品质的影响[J].棉花学报,2025,37(6):501-513,13.基金项目
水利部重大科技项目"水工程智能调度控制技术装备与仿真测试平台研发"(SKS-2022117) （SKS-2022117）
河北省邯郸市科学技术研究与发展计划项目"青椒覆盖集雨调亏滴灌智能节水灌溉决策系统研究"(21422012319) （21422012319）
河北省科技支撑计划项目"镧改性粉煤灰小球水土共治及水体磷资源回收利用"(236Z4101G) （236Z4101G）
河北省创新能力提升计划科技研发平台建设专项(18965307H) （18965307H）
河北省自然科学基金资助项目"调亏模式对冬小麦硒素吸收调控机制研究"(E2024402034) （E2024402034）
