葱头又叫洋葱、圆葱,是一种适应性强,产量高,易栽培,耐贮藏,供应期长,食用范围广,经济效益大的蔬菜品种。我国从南到北各地均可栽培。近几年来,随着市场的开放,城乡人民生活水平的提高,栽培面积逐年扩大,良种供不应求。我市地处中原,气温比较适中,四季明显,为繁殖洋葱良种提供了有利条件,每年生产大量纯度高,质量好的种子,除满足当地生产外,还远销全国各地,受到了广大农民的好评。在长期的种子繁育工作中,群众对提高种子纯度和产量方面,积累了丰富的经验,使种子产量大幅度提高,经济效益明显上升。其经验主要是精细挑选种株,适时定植,加强田 Onions, also known as onion, onion, is a strong adaptability, high yield, easy to cultivate, storage resistance, long supply period, a wide range of food, the economic benefits of large varieties of vegetables. Our country can grow from south to north all over. In recent years, with the opening up of the market, the living standard of urban and rural areas has been rising, the area of ​​cultivation has been expanding year by year, and the seed production has been in short supply. The city is located in the Central Plains, the temperature is moderate, the four seasons obvious, for breeding onions provide good conditions, a large number of annual production of high purity, good quality seeds, in addition to meet the local production, but also exported to all parts of the country, by the majority of farmers Praise. In the long-term seed breeding work, the masses have accumulated rich experience in improving seed purity and yield, resulting in a substantial increase in seed yield and a marked increase in economic benefits. Its experience is mainly fine selection of strains, timely colonization, strengthening the field