旱地小麦少耕沟播覆盖技术研究

１９９０～１９９３年的试验研究和生产示范表明，旱地小麦少耕沟播覆盖栽培技术具有明显的蓄水保墒和培肥土壤效果，少耕沟播覆盖比常规耕作的土壤含水量提高两个百分点以上，土壤有机质含量提高０．１２７～０．２５１百分点；土壤容重变小，比常规耕作增产小麦３６．６％。

Study on Cultivation Technique of Reduced Tillage,Furrow Sowing and Straw Mulching

The experimental studies and productive demonstrations of the cultivation technique of reduced tillage, furrow sowing and straw mulching on rainfed wheat from 1990 through 1993 showed that this technique had significant effects on water deposition and improvement of soil fertility. Soil moisture content in the fields undergoing this technique was increased by 2 percentage point, soil organic matter increasod by 0. 127～0. 251 percentage point and bulk density of soil decreased, a 36. 6% increase compared with conventional tillage