玉米是四季播种作物。以国内为例,适应当地的种植制度,北方有春播和夏播,南方一些地区有秋播,华南有冬播。所谓春玉米、夏玉米、秋玉米等,是因播种季节不同而使用的习惯说法。黑龙江、吉林、辽宁、宁夏、内蒙古、山西省大部分地区、河北部分地区、陕西和甘肃的部分地区是春播玉 Corn is sown crop seasons. Take domestic as an example, it adapts to the local planting system. There are spring sowing and summer sowing in the north, autumn sowing in some areas in the south and winter sowing in South China. The so-called spring corn, summer corn, autumn corn, etc., is due to the different planting seasons used to say. Heilongjiang, Jilin, Liaoning, Ningxia, Inner Mongolia, most parts of Shanxi Province, part of Hebei, Shaanxi and Gansu part of the spring sowing jade