If you concentrate on grain monoculture, you are looking for trouble.
如果你只從事谷類的單種栽培, 那你就是自找麻煩.
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Monoculture practices can incorporate multiple cropping systems by using rotations, borders, and cover crops.
單一做法,可以將復(fù)種輪作系統(tǒng)的使用, 邊界, 覆蓋作物.
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