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

们的甜菜种植面积增加到176000公顷。

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，要在夏季获得每公顷草场900公斤以的活体增重，是不可能的。