如果采用传统技术
If you use traditional technology
以上为机器翻译结果,长、整句建议使用 人工翻译 。
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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