He practiced crop rotation and soil conservation a century before these became standard practice and he invented a plow superior to any other in existence.
在人们普遍利用农作物轮作和土壤保持的作法前一个世纪，他就这样做了。
Jian Ping County's practice in improving dry and Sandy land has proved that the ecological construction With conservation of Water and soil as key work the plantation of trees and grass as ke...
建平县治理干旱风沙地的实践证明，以水土保持为中心，以造林种草为重点，工程措施和生物措施相结合，山、水、村、田、路综合治理的生态建设是获得经济、社会、环境效益统一的成功模式。
He practiced crop rotation and soil conservation a century before these became standard practice, and he invented a plow superior to any other in existence.
在人们普遍利用农作物轮作和土壤保持的作法前一个世纪，他就这样做了。
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