Abstract: To investigate the effects of biogas slurry ratio under deficit irrigation on tomato growth，yield and quality，this study conducted a greenhouse tomato planting experiment from October 2024 to April 2025. Conventional drip irrigation practices employed by farmers served as the control（CK），while nine deficit irrigation and biogas slurry ratio treatments（T1—T9）were established under indirect subsurface drip irrigation.At different growth stages，tomato of each treatment was applied with different proportions of biogas slurry，specifically，T1（1∶4 for the growth period），T2（1∶4 for seedling stage，1∶6 for flowering and fruiting stage，1∶8 for fruit maturing，the same below），T3（1∶4，1∶8，1∶6），T4（1∶6 for the whole growth period） ，T5（ 1∶6，1∶4，1∶8），T6（ 1∶6，1∶8，1∶4），T7（1∶8 for the whole growth period），T8（ 1∶8，1∶4，1∶6），T9 （1∶8，1∶6，1∶4）. The physiological，ecological，yield，and quality indicators of tomatoes under different treatments were measured to explore their response patterns，and the TOPSIS method was employed to evaluate and analyze the comprehensive benefits of tomato cultivation. The results indicated that at the end of the growth period，T7 treatment exhibited the highest plant height and stem diameter，measuring 1.83 m and 18.70 mm，respectively；T1 treatment showed the lowest plant height，while T9 treatment exhibited the lowest stem diameter.The T3 treatment achieved the largest leaf area，and T4 treatment demonstrated the most favorable leaf chlorophyll content. Across the seedling stage，flowering‑fruiting stage，and ripening stage，T4，T6，and T1 treatments showed the highest total dry matter accumulation，respectively.T4 treatment yielded the highest tomato production（4.15 kg/plant），followed by T5 treatment（3.61 kg/plant）.T2 and T5 treatments achieved the highest soluble sugar content，while T6 treatment exhibited the highest titratable acidity and lycopene contents.The T4 treatment had the highest soluble solids，vitamin C，and soluble protein contents.The comprehensive benefit evaluation results showed that T4 was the optimal treatment in the experiment.

Key words: Tomato, Biogas slurry ratio, Regulated deficit irrigation, Indirect subsurface drip irrigation, Growth stage, Growth, Yield, Quality

摘要： 为探索调亏灌溉下沼液配比对番茄生长、产量和品质的影响，以温室番茄为对象，于2024年10月至2025年4月开展温室种植试验，以农户常规滴灌为对照（CK），另设9个调亏灌溉+沼液配比处理（T1—T9），采用间接地下滴灌技术，各处理番茄在不同生育时期灌溉不同体积比沼液，即T1（全生育期1∶4）、T2（苗期1：4、开花坐果期1∶6、果实成熟期1∶8，生育时期顺序下同）、T3（1∶4、1∶8、1∶6）、T4（全生育期1∶6）、T5（1∶6、1∶4、1∶8）、T6（1∶6、1∶8、1∶4）、T7（全生育期1∶8）、T8（1∶8、1∶4、1∶6）、T9（1∶8、1∶6、1∶4）。通过测定各处理番茄的生理生态、产量和品质指标，探求其响应规律，并采用TOPSIS法对番茄种植综合效益进行评价分析。结果表明，生育末期番茄株高和茎粗均以T7处理最高，分别为1.83 m和18.70 mm，T1处理株高最小，T9处理茎粗最小；T3处理能够获得最大的叶面积，T4处理能够获得最理想的叶片叶绿素含量；番茄苗期、开花坐果期、果实成熟期末分别以T4、T6、T1处理总干物质积累量最大；T4处理产量最高（4.15 kg/株），T5处理次之（3.61 kg/株）；T2处理和T5处理获得了最高的可溶性糖含量，可滴定酸及番茄红素含量均以T6处理最高，T4处理可溶性固形物、维生素C和可溶性蛋白含量最高。综合效益评价结果显示，T4为试验最优处理。

关键词: 番茄, 沼液配比, 调亏灌溉, 间接地下滴灌, 生育时期, 生长, 产量, 品质