Research on minimum tillage, no-tillage and mulching systems and its effects in China

被引:23
作者
Tang, K
Zhang, CE
机构
[1] Natl. Key Lab. Soil Erosion D., Inst. of Soil and Water Conservation, Chinese Academy of Sciences, Yangling, Shaanxi Province
[2] Natl. Key Lab. Soil Erosion D., Inst. of Soil and Water Conservation, Chinese Academy of Sciences, Yangling, Shaanxi Province 712100, No. 26, Xinong Road
关键词
D O I
10.1007/BF00863559
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 [大气科学]; 070601 [气象学];
摘要
Minimum tillage, no-tillage and mulching have been broadly used in modern Chinese agricultural production in the past 20 years. The application area has reached 12.34 million hectares, and a corn, soybean, rape, wheat, peanut and rice have been involved in these tillage systems. These techniques have provided obvious benefits of soil and water conservation on sloping farm-land in the hill regions; obtained remarkable effects of storing water and reducing drought in the dryland farming regions; and resulted in some success in the reclamation of saline soil. The common characteristics in different regions are building a good agri-ecological environment, improving soil physical properties, enhancing the capacity of storing water, regulating the activity of soil micro-organisms, improving the accumulation of soil organic matter and nutrients, fertilizing the land and increasing crop production. In comparison with the traditional tillage systems, crop production increased 10-20% and the benefit of soil and water conservation was 40-90%.
引用
收藏
页码:61 / 67
页数:7
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