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Effects of Different Water-saving Irrigation Modes on Rice Tillering, Height and Yield in Cold Area
Author(s): 
Pages: 16-19
Year: Issue:  12
Journal: Water Saving Irrigation

Keyword:  water-saving irrigationwet irrigationintermittent irrigationcontrol irrigationrice in cold area;
Abstract: 通过两年试验对黑龙江省主要稻区现行的3种节水灌溉模式及淹水灌溉进行综合研究,重点分析了灌溉模式对水稻分蘖、株高及产量指标的影响,得出了以下结论:4种灌溉模式中,湿润灌溉有效分蘖率最高,淹灌最低,控制灌溉与间歇灌溉相差不大;各灌溉模式株高变化趋势相同,都在乳熟期达到最大值,之后略微有所下降,在拔孕期以前,淹灌株高一直大于其余3种灌溉模式株高.在抽开期、乳熟期及黄熟期,则是湿润灌溉株高大于其余3种灌溉模式,而淹灌株高则小于其余3种灌溉模式;湿润灌溉的最终的产量最高,间歇灌溉次之,淹灌最低.
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