寒旱农业科学2025，Vol.4Issue(12)：1123-1127,5.DOI:10.3969/j.issn.2097-2172.2025.12.008
膜下滴灌条件下甘肃河西地区洋葱生产中的减氮与节水效应
Effects of Nitrogen Reduction and Water Saving on Onion Production in Hexi Area of Gansu under Mulched Drip Irrigation Conditions
摘要
Abstract
To establish a rational irrigation and fertilization regime and promote the sustainable development of the onion industry in Gansu,4 irrigation-fertilization schemes were evaluated under a mulched drip irrigation system:conventional nitrogen rate+conventional irrigation(CK),70%conventional nitrogen+conventional irrigation,70%conventional nitrogen+78%conventional irrigation,and 70%conventional nitrogen+60%conventional irrigation.Results showed that a 22%reduction in irrigation on the basis of 30%nitrogen reduction had no adverse impact on onion growth and yield.Under this condition,onion yield reached 98 879.4 kg/ha,which was 0.15%higher than the conventional treatment.Total water consumption during the growing period decreased by 13.47%,and water use efficiency increased by 15.66%.Therefore,an irrigation-fertilization regime combining 30%nitrogen reduction and 22%water saving under mulched drip irrigation is an appropriate management practice for efficient onion production in the Hexi region.关键词
减氮节水/洋葱/产量/水分利用效率Key words
Nitrogen-reduction/Onion/Yield/Water use efficiency分类
农业科技引用本文复制引用
KUAI Jialin,ZHANG Yuxin,MA Yanxia,ZHANG Xiangyu,YU Qingwen..膜下滴灌条件下甘肃河西地区洋葱生产中的减氮与节水效应[J].寒旱农业科学,2025,4(12):1123-1127,5.基金项目
甘肃省青年人才个人项目(2025QNGR58) （2025QNGR58）
财政部和农业农村部国家现代农业产业技术体系(CARS-24-G-28) （CARS-24-G-28）
农业农村部西北地区蔬菜科学观测实验站项目(2015-A2621-620321-G1203-066). （2015-A2621-620321-G1203-066）
