Chinese Journal of Agrometeorology

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Spatial Distribution of Potential Productivity for Greenhouse Tomato Variety Zhongza No.9 Based on TOMSIM

CHU Jin-xiang,SUN Zhong-fu,DU Ke-ming,JIA Qian(Institute of Environment and Sustainable Development in Agriculture,CAAS,Beijing 100081,China)   

  • Online:2009-02-10 Published:2009-02-10

Abstract: Potential productivity of greenhouse tomato variety Zhongza No.9 was calculated by using TOMSIM model to guide production of greenhouse tomato.At first the mechanism of TOMSIM was introduced and tested by using the 10 sites radiant data of China.Then the potential productivity of greenhouse tomato variety Zhongza No.9 were simulated by inputting 33 cities solar radiation data of China from 1981 to 2000.The results showed that the highest yield equal to 57kg·m-2 was in Tibet and the lowest equal to 34kg·m-2 in Chongqing.The average actual yield of the tomato was only 7.7% of the average potential productivity,which revealed that the enormous output potential of greenhouse could be utilized.

Key words: TOMSIM, TOMSIM, Greenhouse tomato, Potential productivity, Spatial distribution analysis