... crop failure作物失收；作物减产 crop rotation轮植；轮作；轮耕 cropping pattern作物生产型式 ...
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不同的作物轮耕，以防止土壤养分枯竭。
Rotate agricultural crops to prevent the sapping of nutrients.
农夫每季应该要轮耕，以免耗尽土壤。
Farmers should rotate crops every season to prevent depletion of the soil.
从耕法上看，轮耕法所获得生物效应普遍好于常规耕法。
In view of tillage methods, the shifting agriculture generally achieved better biological effects than the conventional tillage system.
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