大葱原产亚洲及我国西北高原地区,在我国南北均有种植,尤以北方为多。我省淮北地区冬季最低气温在-10℃左右,正常情况下无明显的梅雨季节,比较适宜大葱采种。近几年来,我公司受日本等国公司的委托在该地区进行采种工作,基本上掌握了该地区的气候特点,并就其实际气候特征,制订了一套采种技术方案。 Scallions originated in Asia and China’s northwestern plateau areas, both in North and South China planted, especially in the North as much. The lowest winter temperature in Huaibei in our province is about -10 ℃. Under normal conditions, there is no obvious rainy season, so it is more suitable for the planting of green onions. In recent years, our company was commissioned by Japan and other countries in the region for seed collection work, basically mastered the climate characteristics of the region, and based on its actual climatic characteristics, developed a set of technical programs.