Abstract: Further improvement was expected to be achieved of the application effect and actual benefits of solar greenhouse vegetable growing in northern Shaanxi. Through the solar greenhouse vegetable growing experimental area in Yangling Agricultural Hi-tech Industries Demonstration Zone, the solar greenhouse vegetable growing mode and experience were analyzed to be applied to the solar greenhouse vegetable growing in northern Shaanxi. In view of the realistic situation of the solar greenhouse vegetable growing in northern Shaanxi, the solar greenhouse improvement scheme was proposed, as well as the southward single slope conjoined solar greenhouse improvement scheme. The investigation was conducted on concrete contents and application effects of the two schemes. The solar greenhouse improvement scheme focused on the ventilation system and greenhouse structure, which was proved to run well. After the ventilation transformation, the cost of each greenhouse increased by about 1 000 yuan, and the total cost of a greenhouse in northern Shaanxi was 28 000 yuan. The southward single slope conjoined solar greenhouse improved the heat absorption capacity, realized large-scale mechanical operation, and increased the land utilization rate. Both schemes had superior practical application effects and could be popularized in northern Shaanxi.

Key words: greenhouse vegetable, solar greenhouse, greenhouse improvement, northern Shaanxi