African corn yields have risen very little since the year 2000.

2000年以来，非洲玉米产量的增长微乎其微。

Boston hopes his carbon farming investment will turn a profit not only selling sequestered carbon but also increasing his soybean and corn yields.

波士顿希望他的碳农业投资不仅能出售封存的碳，还能增加他的大豆和玉米产量，从而实现盈利。

The U.S. Agriculture Department today predicted the lowest average corn yield in 15 years. The USDA now projects 10.8 billion bushels of corn to be produced.

美国农业部今天预测玉米平均单产为 15 年来最低。美国农业部现在计划生产 108 亿蒲式耳的玉米。

I think the overall effect is analysts had anticipated that the corn yield would be low, but they were expecting it to be a bit higher than what the government report actually showed.

我认为总体影响是分析师预计玉米产量会很低，但他们预计它会比政府报告实际显示的要高一点。