Carbon fixation in every cover crop treatment is higher than that of winter fallow cropland.

黑麦草的碳蓄积量显著高于紫云英和油菜，各覆盖作物处理碳蓄积量均显著高于冬闲田。

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I guess they just can't afford to let any field lie fallow, because they're already living on the edge, but the result is going to be declining yields and ultimately crop failure.

我猜他们应该是负担不起让地闲置下来，因为他们已经是生活在赤贫线上，但结果却是收成一年不如一年，最后导致农作物歉收。

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In one set of plots, she is comparing the traditional 2-year, wheat-fallow rotation with a 3-year cycle of no-till winter wheat, followed by a second crop of no-till winter wheat, followed by sorghum.

在第一组试验田中，她正在比较传统的两年制小麦休耕轮作制和三年轮作制，即首先种植免耕冬小麦，第二季种植免耕冬小麦，然后种植高粱。

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