Conservation tillage in US agriculture

被引：2

作者：

Uri, ND ^{[1
]}

机构：

[1] USDA, RID, NRCS, Washington, DC 20250 USA

来源：

ENVIRONMENTAL TECHNOLOGY | 1998年 / 19卷 / 10期

关键词：

agricultural production; conservation tillage; environmental impact; soil erosion;

D O I：

10.1080/09593331908616759

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Conservation tillage was used on nearly 36% of planted hectares in 1996 in the United States. This level has remained relatively unchanged since 1993. The use of conservation tillage varies by crop and is dependent on site-specific factors including soil type, topsoil depth and local climatic conditions. A number of economic, demographic, geographic and policy factors have affected the adoption of conservation tillage. While it is not possible to quantify exactly the impact of these factors, it is clear that management complexities and profitability are key factors impeding the further adoption of conservation tillage.

引用

页码：1017 / 1027

页数：11