Journal of Tianjin Agricultural University ›› 2025, Vol. 32 ›› Issue (1): 82-89.doi: 10.19640/j.cnki.jtau.2025.01.015

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Effects of temperature increase on greenhouse tomato growth based on DSSAT model

Chen Junwei1, Dong Jianshu1, Si Zhuanyun2, Yi Ruochen1, Zhang Kai1, Fan Haiyan3,4,5,Corresponding Author   

  1. 1. College of Water Conservancy Engineering, Tianjin Agricultural University, Tianjin 300392, China;
    2. Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences /Key Laboratory of Crop Water Use and Regulation, Ministry of Agriculture and Rural Affairs, Xinxiang 453002, Henan Province, China;
    3. Beijing Water Science and Technology Institute, Beijing 100048, China;
    4. Beijing Unconventional Water Resources Development and Utilization and Water-saving Engineering Technology Research Center, Beijing 100048, China;
    5. College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
  • Received:2023-12-25 Published:2025-03-04

Abstract: The DSSAT model was employed to assess the influence of future temperature changes on greenhouse tomato production potential in North China, aiming to guide sustainable management practices. Model applicability was validated using field trial data in the region. The model accurately simulated the growth and development of greenhouse tomatoes under rising temperatures, and analyzed the impacts on water consumption, yield, and water use efficiency. Through varietal parameter calibration, simulated values aligned well with experimental measurements, demonstrating the model’s suitability for studying greenhouse tomatoes in North China. Results indicated a decreasing trend in water consumption, yield, and water use efficiency with rising temperatures, highlighting the adverse effects of temperature increase on tomato growth. When the temperature increased by 1 ℃, it was necessary to increase the amount of water nitrogen by 5%-20% to basically reach the original tomato yield; when the temperature increased by 2 ℃, it was necessary to increase the amount of water nitrogen by 10%-25% to reach the original yield; when the temperature increased by 3 ℃, it was necessary to increase the amount of water nitrogen by 15%-25% to reach the original yield. Exceeding specified levels in irrigation and nitrogen fertilizer usage can adversely impact tomato growth. Elevated temperatures negatively affect both yield and water use efficiency of greenhouse tomatoes in North China. The study results offer valuable technical support for achieving high-yield, high-efficiency, and sustainable greenhouse tomato production in the region.

Key words: DSSAT-CROPGRO-Tomato model, tomato, temperature, yield, scenario simulation

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