There sugar-beet plantation areas were expanded to 176000 hectares.
他们的甜菜种植面积
加到176000
顷。
There sugar-beet plantation areas were expanded to 176000 hectares.
他们的甜菜种植面积加到176000顷。
An average summer output in excess of 900 kg . liveweight per ha. could not have been obtained if there had been a complete reliance on clover nitrogen.
要是完全依靠三叶
的氮，要在夏季获得每顷
900斤以
的活
，是不可能的。
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