大麦与谷类科学2023，Vol.40Issue(6)：1-7,7.DOI:10.14069/j.cnki.32-1769/s.2023.06.001
不同灌水量对河西绿洲灌区膜下滴灌水稻产量、耗水特征及水分利用效率的影响
Effects of Different Irrigation Amount on Yield,Water Consumption Characteristics and Water Use Efficiency of Rice Under Film Drip Irrigation in Hexi Oasis Irrigation Area
摘要
Abstract
Field experiments were conducted at the Zhangye water-saving agricultural experimental station in the Hexi oasis irrigation area to study the effects of different irrigation amounts(525、750、975、1 200 mm)on the growth,yield,water consumption characteristics,and water use eficiency of rice under film drip irrigation and propose appropriate irrigation schemes,so as to provide technical basis for the eficient use of water in rice under film drip irrigation.The results showed that irrigation amount had a significant impact on rice growth and development,yield,and yield components.When the irrigation amount was 975 mm,the rice yield was 5 521.6 kg/hm2,which was only 2.23％lower than the highest yield(W4 treatment),but significantly increased by 198.37％and 42.98％compared to W,and W2 treatments.Under this irrigation amount,the water use efficiency was the highest,reaching 5.28 kg/(hm2·mm),significantly higher than other treatments.According to water consumption intensity and water sensitivity index,it is determined that the jointing and booting stage,heading and flowering stage are the key periods for water demand in rice.Based on comprehensive analysis,it is proposed that the suitable irrigation amount for the entire growth period of rice is 975 mm,and the irrigation amount at the seedling stage,tillering stage,jointing stage,heading and flowering stage,filling stage,and mature stage of rice is 193、219、236、96、154、77 mm,respectively.This is a suitable irrigation scheme for the Hexi oasis irrigation area to ensure both high yield of rice and efficient water use.关键词
膜下滴灌水稻/灌水量/耗水特征/产量/水分利用效率Key words
Drip irrigation rice under mulch/Irrigation amount/Water consumption characteristics/Yield/Water use efficiency分类
农业科技引用本文复制引用
唐文雪,马忠明,连彩云,罗双龙..不同灌水量对河西绿洲灌区膜下滴灌水稻产量、耗水特征及水分利用效率的影响[J].大麦与谷类科学,2023,40(6):1-7,7.基金项目
甘肃省科技计划(21YF5NA145、21ZD4NF044-4) （21YF5NA145、21ZD4NF044-4）
甘肃省农业科学院科技创新专项(2019GAAS12). （2019GAAS12）
