不同水分条件对水稻需水量及产量影响  

Effects of Different Water Supply on Water Demand and Yield of Rice

作　　者：季飞[1] 付强[1] 王克全[1] 徐淑琴[1] 

机构地区：[1]东北农业大学水利与建筑学院,哈尔滨150030

出　　处：《灌溉排水学报》2007年第5期82-85,共4页Journal of Irrigation and Drainage

基　　金：黑龙江省科技攻关项目(GB06B106-7)

摘　　要：通过对水稻各个生育阶段实施不同程度的受旱,初步研究了查哈阳地区水稻在不同水分条件下的需水规律、生理特性以及其产量形成。结果表明:不同水分条件与水稻需水量及产量的关系非常密切。不同阶段的不同程度受旱对水稻生长发育的影响不尽相同,相同程度受旱对产量影响最大的阶段为拔节孕穗期;抽穗开花期次之,在分蘖期和灌浆期实施一定程度的水分亏缺不会对产量构成较大影响。In order to research water requirement pattern, physiological characteristic and yield formation of rice,this text has taken different extent water deficit in each period of rice. The results shol,The different soil＇s moisture is extremely close to water demand and rice yield. The maximum influence of drought stage upon rice yield is the jointing-booting stage; the second influence stage is earing stage and the suitable water deficiency in tillering and filling stage can＇t bring tremendous effects on yield of rice.

关 键 词：水稻 受旱 需水量 产量 

分 类 号：S511[农业科学—作物学]