蓄水控灌模式下水稻耗水量及灌排定额初探  

The Preliminary Research on Water Consumption,Quota of Irrigation and Drainage and Water Production Efficiency under Water-catching and Controllable Irrigation Technology of Rice

作　　者：郭相平[1] 蒋新会[1] 袁静[1] 

机构地区：[1]河海大学农业工程学院,南京210098

出　　处：《灌溉排水学报》2009年第1期65-67,共3页Journal of Irrigation and Drainage

基　　金：国家自然科学基金(50309003);教育部浅水湖泊重点实验室基金项目(2006KJ004)

摘　　要：提出了水稻“蓄水控灌”的概念。以杂交水稻“K优818”为试验材料，采用小区试验，研究了蓄水控灌模式下水稻耗水量、灌排定额、产量和水分生产效率的变化规律。结果表明，蓄水控灌模式下耗水量较淹水灌溉减少5％～14％；灌溉和排水分别减少21％～37％和25％～54％。籽粒产量略有增或降低，而灌溉水生产效率大幅度提高。表明水稻蓄水控灌是一种节水、高效、环保的灌溉模式，适于多雨地区应用。A new concept of ＂water-catching and controllable irrigation（WCCI）＂of rice was suggested in the paper. Field experiments were conducted to investigated effects of WCCI on water consumption, quota of irrigation and drainage, grain yield and water production efficiency with hybrid rice cuhivar ＂K you 818＂as material. The results showed that water consumption decreased from 5% to 14% compared to continuous flooding irrigation（CFI） under WCCI; irrigation and quota drainage decreased from 20% to 50% and 25% to 70%, respectively. Grain yield increase or decrease but water production efficiency increased evidently, which suggested that WCCI would be a water-saving, environmental protection and high-efficiency irrigation model of rice.

关 键 词：蓄水控灌 水稻 耗水量 灌排定额 水分生产效率 

分 类 号：S511[农业科学—作物学]