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吉林省镇赉县从2003年开始保护性耕作试验,当年试验面积只有1.33 hm~2,到2007年,试验面积已推广到2000hm~2。经过5年的实践,探索出了适合镇赉县的保护性耕作模式,保护性耕作已经显示出良好的效果与发展前景。1.保护性耕作的涵义所谓保护性耕作,就是对农田实行免耕少耕,用作物秸秆覆盖地表,减少风蚀水蚀,提高土壤肥力和抗旱能力
The trial of conservation tillage in Zhenlai County, Jilin Province, started in 2003, when the test area was only 1.33 hm ~ 2. By 2007, the test area had been extended to 2000 hm ~ 2. After five years of practice, we have explored a conservation tillage model suitable for Zhenlai County, and conservation tillage has shown good results and development prospects. 1. The meaning of conservation tillage The so-called conservation tillage, is the implementation of no-till tillage on farmland, crop straw covering the surface, reducing wind erosion and water erosion, improve soil fertility and drought resistance