控制灌溉对滨海稻区水稻生育及产量的影响

Effects of Controlled Irrigation on Rice Growth and Yield in Coastal Rice Region

为探究水稻控制灌溉在水稻实际生产中的应用,本试验以盐丰47为供试材料,在辽宁省盐碱地利用研究所试验基地水稻灌溉试验场进行试验,试验设计了常规淹水灌溉和控制灌溉两种灌溉方式。对比两种水稻灌溉方式,结果表明:控制灌溉不会改变水稻生育期的整体规律,可以有效抑制无效分蘖,促进水稻茎秆紧密粗壮,提高抗倒伏性,结实率、有效穗数、水稻理论产量与淹水灌溉相比,均有所增加。

In order to explore the application of controlled irrigation in rice production,Yanfeng-47 was used as the test material in the rice irrigation test field in the test base of Liaoning Institute of Saline-alkali Land Utilization.Two irrigation methods,conventional flooding irrigation and controlled irrigation,were designed in the test,and the two irrigation methods were compared.The results showed that controlled irrigation did not change the overall rule of rice growth and development,but could effectively inhibit ineffective tillering,promote compact and stout stem,improve lodging resistance,and increase seed setting rate,effective panicle number and rice yield compared with flooded irrigation.