There sugar-beet plantation areas were expanded to 176000 hectares.

他们的甜菜种植面积增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.

要是完全依靠三叶草的氮，要在夏季获得每顷草场900斤以的活体增重，是不可能的。