我国玉米种植面积和产量仅次于水稻。
The planting area and yield of Maize is only inferior to rice in China.
有担心usda可能会增加美国2011年玉米种植面积。
Some fear that USDA could increase US 2011 corn acres from last year.
定义每公顷玉米种植面积上所饲养的奶牛数量称为养殖密度。
The number of cows per hectare corn farmers is called as breeding density.
八十年代，加拿大玉米种植面积保持相对稳定，大约一百万公顷。
During the decade of the 1980s, the area of corn production in Canada remained relatively stable at approximately one million ha.
玉米、马铃薯种植面积扩大，春小麦种植面积减小，玉米种植界限向北延伸等与气候变暖的关系密切。
Climate warming was closely interrelated with expanding of planting areas of maize and potato, decreasing of planting areas of spring wheat and the northward extension of maize planting boundary.
玉米、马铃薯种植面积扩大，春小麦种植面积减小，玉米种植界限向北延伸等与气候变暖的关系密切。
Climate warming was closely interrelated with expanding of planting areas of maize and potato, decreasing of planting areas of spring wheat and the northward extension of maize planting boundary.
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