Researchers compared the use of fertilizer in three areas that grow maize as a major grain: China, Kenya and the United States.
研究人员分别对中国、肯尼亚、和美国，这三个以种植玉米作为主要粮食的国家的肥料使用进行了比较。
Researchers compared the use of fertilizer in three areas that grow maize as a major grain: China, Kenya and the United States.
研究人员分别对中国、肯尼亚、和美国，这三个以种植玉米作为主要粮食的国家的肥料使用进行了比较。
应用推荐