Vast tracts of fertile farmland now lie fallow; agricultural output has slumped.
大片肥沃的农地正在休耕；农业产量大幅下跌。
The market is also crimped by a rule that no more than 20% of farmland in any county may lie fallow.
市场还受到一条规则的束缚：任何县中休耕农田不得超过农田总数的20%。
As a result, many farmers are letting their fields lie fallow or switching from thirsty crops, such as cotton, to those that need less.
因此，许多农场主让土地休耕，或不再种植棉花一类需水量大的作物，而改种那些需水量更小的作物。
Experts believe that Russia has huge potential for growth - millions of acres of farmland lie fallow and vast expanses of fertile land have never been farmed at all.
专家们认为俄罗斯有非常大的增产潜力——她幅员辽阔的肥沃土地上还拥有数百万英亩还不曾开垦的农田。
He has also got rid of less valuable crops and left some 1,500 acres (600 hectares) of his 5,600-acre farm to lie fallow.
他已经处理了不值钱的农作物，并留出他5600英亩农场中约1500英亩（600公顷）的土地用以休耕。
He has also got rid of less valuable crops and left some 1,500 acres (600 hectares) of his 5,600-acre farm to lie fallow.
他已经处理了不值钱的农作物，并留出他5600英亩农场中约1500英亩（600公顷）的土地用以休耕。
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