宽幅渗水地膜覆盖集雨式仿丰产沟耕作栽培技术效果研究

宽幅渗水地膜覆盖集雨式仿丰产沟耕作栽培技术(简称"宽膜集雨耕作技术")的核心技术是宽幅地膜和"V"型种植。多年的小区试验和大田示范研究表明,宽膜集雨耕作技术栽培使土壤含水量、降水利用率和生产率都显著提高;作物生育进程明显提前;农田单产提高20%左右。增产的原因是"V"型膜面结构集流效率高,同时宽膜土壤的地积温、单株植株的增温面积也增加。此外,还有土壤板结因素降低等原因。

Catchment Cultivation Techniques of Broad Film Covering by "V"-Size

The keys of catchment cultivation techniques were broad film and "V"-size. Several years of field experiment and demonstration showed that the method could increase soil water and raise water utilization; it could prompt the growth and up-growth of the crops and its ripeness in advance; it could raise the per unit yield of about 20%.Of the reason were,(1)that V-size cater more water;(2)that broad film add temperature and unit plant temperature area;(3)the method cut down soil harness. But the problem was that broad film and total covering airtight, crop roots breath with difficulty.