新疆农业科学2025，Vol.62Issue(2)：302-313,12.DOI:10.6048/j.issn.1001-4330.2025.02.006
休作期冬灌滴灌调控下"干播湿出"对棉花生长及产量影响
Effect of"dry sowing and wet emergence"on cotton growth and yield under the control of winter drip irrigation in off-cropping period
摘要
Abstract
[Objective]Studying the effects of different winter dripping irrigation quotas on the quality of"dry seeding wet output"planting,cotton physiology,growth characteristics,and yield,determining the water-saving and efficient fallow period cotton field moisture regulation strategy.[Methods]Using a small amount of water regulation during the cotton field fallow period,and the"dry seeding wet output"irrigation method af-ter spring sowing,a total of 9 treatments were set in this experiment,with 4 gradients for winter dripping irri-gation quotas:winter dripping irrigation during fallow period(W1S0-W4S0):600,900,1,200 and 1,500 m3/hm2;after spring sowing,two schemes of no"dry seeding wet output"and"dry seeding wet output"were used,with a quota of 225 m3/hm2 for"dry seeding wet output"(W1S1-W4S4),and conventional winter irri-gation of 2,250 m3/hm2 as the control treatment.[Results]Compared with winter dripping irrigation alone,the combination of winter dripping irrigation and"dry seeding wet output"could promote early cotton growth(plant height and stem diameter significantly higher than with no"dry seeding wet output"and conventional winter irrigation),and treatments W1S1-W4S4 could control excessive plant height growth during the nutri-tional growth to reproductive growth stage to a certain extent,with treatments W3 S3 and W4 S4 being the most significant;the combination could increase the leaf area index during the seedling and budding stages,and in the late stage of flowering as well,the leaf area index of W1S0-W4S0 treatments was slightly higher than the CK and W1S1-W4S4 treatments;the total dry matter accumulation of W1S,-W4S4 treatments was significant-ly greater than that of W1S0-W4S0 treatments,which could promote reproductive organ dry matter accumula-tion,with the proportion of dry matter accumulation in reproductive organs in W3S3 and W4S4 treatments ex-ceeding 50％;the leaf area index in the late stage of flowering was significantly negatively correlated with yield,and the total dry matter accumulation was significantly positively correlated with yield.The yields of combination of winter dripping irrigation and"dry seeding wet output"were higher than winter dripping irriga-tion alone and conventional winter irrigation,with the yield of treatment W4S4 being approximately 18.8％higher than that of winter dripping W4S0 treatment and about 13.5％higher than the CK.[Conclusion]"Dry seeding wet output"irrigation under fallow period dripping winter irrigation regulation can significantly improve cotton yield by 3.5％-13.5％while saving irrigation water by 24％-36％.关键词
棉花/滴灌冬灌/干播湿出/灌溉定额/生长性状/产量Key words
cotton/drip irrigation for winter irrigation/dry sowing for wet emergence/irrigation quota/growth characteristics/yield分类
农业工程引用本文复制引用
王晓艳,白云岗,柴仲平,卢震林,刘洪波,肖军,阿曼尼萨..休作期冬灌滴灌调控下"干播湿出"对棉花生长及产量影响[J].新疆农业科学,2025,62(2):302-313,12.基金项目
新疆"天山英才"创新领军人才项目(2022TSYCLJ0069),新疆维吾尔自治区重大专项"南疆盐渍化障碍棉田'干播湿出'技术、产品研发"(2022A02007-3) Xinjiang"Tianshan Talents"Innovation Leading Talent Project(2022TSYCLJ0069) （2022TSYCLJ0069）
Major Scientific R & D Program Project of Xinjiang Uygur Autonomous Region"Southern Xinjiang Salinization Obstacles Cotton Field'Dry Sowing Wet'Technology,Product Development"(2022A02007-3) （2022A02007-3）
