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通过哈尔滨地区塑料大棚番茄分期定植试验，得出在我国中温带地区，番茄随着定植期的推后，前、中期产量在总产量中的比重加大；番茄总产值最高的是定植期最早的，它比适温条件单层大棚内定植的经济效益提高了近３０％；定植期对大棚内番茄果实的品质影响不大。所以，在中温带地区尽量提早定植是充分利用当地光、热资源提高大棚生产经济效益的有利措施。
The experiment of tomato staging planting in plastic greenhouse in Harbin showed that in the temperate zone of China, the proportion of the former and the middle period output in the total output increased with the postponement of tomato in the mid-temperate region. The highest total output value of tomato was the earliest , Which is nearly 30% higher than the economic benefit of colonization in the greenhouse with single temperature. The effect of planting period on the quality of tomato fruit in the greenhouse is not significant. Therefore, as early as possible in the temperate zone colonization is to make full use of local light and heat resources to improve greenhouses economic benefits of production of favorable measures.