期刊论文

Yield andWater Use efficiency of Super Rice under Pressurized Subsurface Micro-irrigation

中文

灌溉排水学报

1672-3317

2019

38

4

31-35,99

10.13522/j.cnki.ggps.20180488

国家自然科学基金项目(C150705) 湖南省研究生科研创新项目(CX2017B364).

本校为第一机构

【目的】探究有压微灌对超级稻耗水量及水稻生长的影响。【方法】通过水稻根系层埋置透水管,采用管道微灌增压方法进行室外盆栽试验。试验统计了自然降雨条件下有压微灌组(WY)和对照处理充分灌溉组(CK)的灌溉水量,并观测2种灌溉方式对水稻农艺性状的影响。【结果】水稻全生育期WY组平均每盆灌溉水量17.23 kg (2.46×10~6 m~3/hm~2),CK组平均每盆灌溉水量21.25 kg(3.04×10~6 m~3/hm~2),有压微灌相比充分灌溉减少灌溉水量18.92%;有压微灌处理水稻分蘖完成后,WY组平均分蘖数为31.167,CK组为27.083,有压微灌促进水稻的分蘖生长。水稻成熟后有压微灌组水稻植株和根系干物质量分别为92.46 g和9.41 g显...

【Objective】The purpose of this paper is to study the effect of water pressure in subsurface micro-irrigation on water consumption and growth of super rice.【Method】The experiment was conducted in pots where the emitters of the micro-irrigation system were buried in the root zone. We compared the pressurized system (WY) and standard system (CK) for their impact on growth traits of the rice.【Result】The overall irrigation amount in the WY and CK was 17.23 kg (2.47×106 m3/hm2) and 21.5 kg (3.02×106 m3/hm2) respectively. WY increased rice til...