然而，耕地被认为是对表层土壤造成严重损害的罪魁祸首，因为它清除了那些保护土壤不被吹走或冲走的植物。
However, plowing is blamed for causing severe damage to top soil by removing the plants that protect soil from being blown or washed away.
在常规耕作条件下，春季作物对土壤水份含量的响应要比免耕地大得多。
Under conventional till, crop response to spring soil water content was considerably greater than under zero till.
如果采用传统技术如轮作和堆肥为土壤补充氮和其他物质，就需要耕地也增长三倍了。
Using traditional techniques such as crop rotation, compost and manure to supply the soil with nitrogen and other minerals would have required a tripling of the area under cultivation.
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