番茄是我国城乡广大群众普遍喜爱的一种蔬菜。它营养丰富,生熟食皆宜,市场需要量很大。根据有关资料介绍,全国除去少数几个城市供应情况稍好以外,其他许多地区都不同程度地存在着数量不足,质量欠佳等问题。尽管番茄栽培面积不断扩大,单产却在下降,总产量减少。以北京市为例,197 Tomato is a vegetable commonly loved by the masses in urban and rural areas in China. It is nutrient-rich, raw and cooked food are safe, the market needs a lot. According to relevant information, except for a few cities in the whole country, the supply situation is slightly better. In many areas, there are some problems such as insufficient quantity and poor quality in varying degrees. Despite the growing area of ​​tomato cultivation, yields are declining and total output is declining. Take Beijing as an example, 197