水稻覆膜节水增温高产栽培技术研究

为了提高黑龙江省有效活动积温利用效率、缓解日益扩大的水田面积与有限水资源间的供需矛盾,采用稻田覆盖地膜结合湿润灌溉方法,研究了黑龙江省水稻在覆膜、节水条件下生长发育、分蘖动态和产量构成要素等方面的影响变化。结果表明:覆膜节水对于水稻的生长发育具有积极的促进作用,能够缩短生育期;增加土壤温度;叶片叶绿素含量降低缓慢;叶面积指数增加47.37%;增产10.37%。是一项效果明显、易于农民掌握操作的节水增温高产栽培技术。

Study on Filming High Yield Cultivation Technique of Rice to Save Water and Increase Temperature

In order to increase the efficient of active accumulated temperature in Heilongjiang province,release the contradiction between paddy field area expansion and limited water resource,the effect of rice growth,tillering dynamic change and yield components were studied by the method filming and irrigation.The result showed that there was improvement function of filming to rice growth,it could shorten growth period,increase soil temperature,decrease leaf chlorophyll content slowly,increase leaf area index by 47.37% and yield by 10.37%.It was a saving water and increasing temperature high yield cultivation technique with obvious effect and easily grasped by farmers.