不同晒田处理对南方易涝易渍地区水稻生长的影响  

Effects of Different Paddy Field Drainage Degrees on Rice Growth in the Farmland Vulnerable to Waterlogging in the South of China

作　　者：甄博[1,2] 郭树龙[1,2] 周新国[1,2] 李彩霞[1,2] 郭冬冬[1,2] 

机构地区：[1]中国农业科学院农田灌溉研究所,河南新乡453002 [2]河南商丘农田生态系统国家野外科学观测研究站,河南商丘476001

出　　处：《灌溉排水学报》2014年第6期47-50,共4页Journal of Irrigation and Drainage

基　　金："十二五"公益性行业(农业)科研专项经费资助项目(201203077;201203032)

摘　　要：采用测坑和大田试验,分析了不同晒田处理(轻度晒田、滞后晒田、不晒田)与正常晒田模式下水稻生长指标、生理指标和产量性状的差异,并探讨了南方易涝易渍地区水稻生长的影响机制。结果表明,与正常晒田相比,滞后晒田处理茎蘖数、叶绿素、根系活力有所减少,但差异不显著,测坑内水稻千粒质量和产量分别增加1.28%、8.87%,大田内水稻千粒质量和产量分别增加5.65%、9.19%。但轻度晒田和不晒田处理产量降低。滞后晒田可以提高水稻的结实率和千粒质量,增加水稻产量。现有晒田模式下,南方易涝易渍地区推迟2d晒田不会降低水稻产量。Test pits and field trials were performed to analyze the differences between growth indicators, physiological indicators and yield traits of rice under different paddy field drainage degrees （QS, ZS, BS, CK） in the south of China, and the impact mechanisms of rice growing areas vulnerable to waterlogging were discussed. The results indicated that compared with normal field drying, the tiller number, chloro- phyll content and root activity decreased in the lag field drying treatment, but the differences were not significant. The 1000-grain weight and yield in test pit increased by 1.28% and 8.87% while they in the field increased by 5. 65% and 9.19%. However, the rice yield of QS and BS decreased. ZS treatment might improve rice seed setting rate, 1000-grain weight and rice yield. Under the existing paddy field drainage mode, paddy field drainage, which postponed two days, would not reduce rice yields in the southern areas vulnerable to waterlogged and prone to stains.

关 键 词：水稻 晒田 生长发育 产量 

分 类 号：S511[农业科学—作物学]