| Abstract: In order to make full use of the favorable conditions of modern agricultural facilities, improve the multiple planting index of leaf vegetables in Guanzhong area of Shaanxi province and increase the planting efficiency of vegetable farmers, after many years of field visits and investigations, the green and efficient cultivation technology of Chinese cabbage for multiple rotation in one year was summarized and put forward. By building appropriate facilities, reasonable arranging rotation, improving the quality of soil, changing irrigation methods and improving the soil microbial flora, improving the soil grain structure and content of organic matter, the selection and application of excellent cultivars, scientific field management, green control of diseases and pests, timely harvesting and other technological measures, it could achieve 6-7 crops rotation in
one year. The amount of fertilizers, pesticides both reduced by 20%, and the number of applying pesticides reduced by 30%. The average yield of single stubble reached 1 380 - 1 730 kg per 667 m2, the output value was 8 000 - 10 000 yuan per 667 m2, and the annual output value was 57 000 - 60 000 yuan per 667 m2. This mode not only met the local vegetable market supply, but also greatly improved the planting efficiency of vegetable farmers. |