固定道耕作灌溉对覆膜春小麦土壤水分和产量的效应研究

Effects of controlled traffic tillageirrigation on soil water and yield of film-mulched spring wheat

针对传统种植方式下大水漫灌所造成的水资源浪费,采用固定道耕作与沟灌加地膜覆盖的方法,采用小水沟内侧渗灌,设置垄沟比例为2.23∶1。试验结果表明:固定道耕作法灌水道内的水分侧渗范围比传统的自然道耕作宽约15cm,下渗速度较慢,但下渗较深;固定道耕作法有利于充分发挥小麦的边行优势,穗粒数、穗粒重和千粒重显著高于自然道耕作,产量比自然道耕作增加16.9%。

Aimed at the waste of water resouces led by flood irrigation of traditional planting fashion, a controlled traffic tillage and furrow irrigition with film-mulched method was adopted, which was filtration irrigation inside ditch, and the ratio of ridge to ditch was 2.23 : 1. The results indicated that the scope of water infiltration of controlled traffic tillage was 15 centimeters wider than of traditional tillage, the speed of water vertical infiltration was low but deeper than conventional tillage. Besides...