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自1999年开始,山西省偏关县在坚持保护性耕作技术的秸秆覆盖、少耕、免耕的基本原则下,经过试验示范,取得了蓄水保墒、培肥地力、节本增效的显著效果。全县2079km2保护性耕作示范面积,土壤含水量增加了27%,水分利用率增加了23.5%,土壤有机质共增加了0.08g/kg,全氮增加了0.11g/k
Since 1999, under the basic principles of straw mulching, tillage and no-tillage in the conservation tillage technology, Pingshan County, Shanxi Province has made remarkable achievements in saving soil moisture, improving soil fertility, and saving costs and increasing efficiency through trial and demonstration effect. The county 2079km2 conservation tillage demonstration area, soil moisture increased by 27%, water use efficiency increased by 23.5%, total soil organic matter increased by 0.08g / kg, total nitrogen increased by 0.11g / k