山东农业科学2025，Vol.57Issue(7)：53-59,7.DOI:10.14083/j.issn.1001-4942.2025.07.007
干播湿出模式下不同灌水量和灌水频次对棉苗生长及产量的影响
Effects of Irrigation Amount and Irrigation Frequency on Cotton Growth and Yield under Dry Sowing and Wet Emergence Mode
摘要
Abstract
In order to screen the suitable irrigation amount and frequency for cotton seedling emergence under dry sowing and wet emergence mode,'Tahe 2'was used as the test variety,and a completely random-ized experimental design was adopted.Five treatments[WP1:225 m3/hm2;WP2:375 m3/hm2;WP3:450 m3/hm2;WP4:(225+150)m3/hm2;WP5:(225+225)m3/hm2]were set to study their effects on cotton seedling emergence rate,root and plant growth during seedling period,yield and soil temperature.The results showed that split irrigation increased the cotton seedling emergence rate compared to single irrigation,and that of WP4 treatment was 7.73％higher than that of WP2 treatment reaching significant level.Under split irriga-tion conditions,irrigation amount significantly affected cotton seedling emergence rate,plant height and root growth,and WP4 treatment had higher seedling emergence rate and plant height compared to WP5 treatment by 6.41％and 29.68％,respectively.WP4 treatment had significantly higher root length,root volume,root sur-face area,projected area of root and tip number than WP5 treatment by 95.95％,68.75％,83.82％,83.94％and 150.75％,respectively,and the root diameter was lower by 23.53％reaching significant level.WP4 treat-ment increased the average soil temperature and effective heat accumulation in the 0～5-cm and 5～10-cm soil layers compared to WP5 treatment.WP4 treatment had significantly higher seed cotton yield than WP2 and WP5 treatments by 14.84％and 6.13％,respectively.In summary,split irrigation at 375(225+150)m3/hm2 was a suitable water-saving and efficient mode for cotton seedling emergence mode under dry sowing and wet emergence mode in southern Xinjiang,which could provide theoretical basis for regulating drop irrigation.关键词
干播湿出/棉花/灌水/出苗率/幼苗生长/产量Key words
Dry sowing and wet emergence/Cotton/Irrigation/Seedling emergence rate/seedling growth/Yield分类
农业科技引用本文复制引用
王仕婧,邢蕊萍,田亚捷,吴坚丹增,崔政军,胡强,万素梅..干播湿出模式下不同灌水量和灌水频次对棉苗生长及产量的影响[J].山东农业科学,2025,57(7):53-59,7.基金项目
国家重点研发计划项目"油纤饲兼用型棉花新品种选育及高效栽培技术"(2023YFD2301200) （2023YFD2301200）
新疆生产建设兵团指导性科技计划项目"南疆机采棉提质增效关键技术研究与示范"(2023ZD092) （2023ZD092）
塔里木大学校长基金自然科学项目(TDZKSS202307) （TDZKSS202307）
