Research on the Relationship Between Canopy-air Disparity and the Canopy Temperature Depression of Eggplant in Solar Greenhouse

The relationship between canopy-air disparity and environmental factors was discussed compre-hensively in solar-heated greenhouse.Meanwhile,the quantitative relationship between canopy-air disparity and meteorological factors was established,Besides,the correlation analysis between canopy-air disparity and soil water content was studied in detail,which indicated canopy-air disparity has a good relationship with soil water content,Furthermore,the study came up with the water diagnosis index of eggplant in solar-heated greenhouse.The test results showed that the index can reflect soil water status well.