论文部分内容阅读
玉米是我国主要的粮食作物。全国玉米年种植面积2697万公顷,年产量1440亿千克,分别占粮食种植面积的26%和粮食总产量的30%,在粮食生产中占有
Corn is China’s major food crop. The annual planting area of corn in China is 26.97 million hectares with an annual output of 144 billion kilograms, accounting for 26% of the total area planted with grain and 30% of the total grain output, respectively, and occupying the grain production