一、前言西红柿营养丰富,鲜食熟食皆宜,深受人们喜爱,一向是西宁地区栽培的主要蔬菜品种之一。六十年代,除少量温室栽培以外,主要是露地栽培,采收期仅八、九两个月,亩产仅四、五千斤。一九七三年塑料大棚创建初期,主要用于黄瓜,早油白菜栽培。随着塑料大棚的推广,西红柿生产才得以发展。但是由于缺乏在特定环境条件下相应的丰 I. Preface Tomatoes are rich in nutrition, fresh and cooked food, loved by the people, has always been cultivated in Xining one of the main varieties of vegetables. In the 1960s, except for a small amount of greenhouse cultivation, cultivation mainly took place in the open field. The harvesting period was only eight or nine months and only four or five kilograms were produced per mu. In 1973, plastic shed was first established, mainly for cucumber, cabbage early cultivation. With the promotion of plastic greenhouses, tomato production has been able to develop. However, due to lack of corresponding abundance under certain environmental conditions