Effects of different foliar fertilizers on the nutrient quality and yield of greenhouse tomato

GAO Chengfei; XIAO Xuemei; GAO Zhijian

doi:10.16861/j.cnki.zggc.2025.0502

Abstract：To study the effects of different foliar fertilizers on the quality and yield of tomato,and to select suitable foliar fertilizers for greenhouse tomato cultivation,this study used tomato variety 184 as the test material.Five different foliar fertilizers with different active ingredients were selected,and six treatments were set up,with the application of clear wa-ter as the control(CK).The yield of tomato and the quality indicators of fruits at different maturity stages were measured,and the dynamic changes in the nutritional quality of tomato fruits during ripening were analyzed.The results showed that during tomato ripening the content of soluble protein and lycopene in fruits exhibited a gradual increasing trend.The con-tent of soluble solids and vitamin C generally increased first and then decreased,reaching the maximum value at the ma-ture stage.The content of nitrate first decreased and then increased,reaching the lowest value at the turning stage.Com-pared with CK,the application of silicon liquid fertilizer significantly increased the content of soluble solids,soluble pro-tein and vitamin C in tomato fruits at the turning stage,mature stage and overripe stage.The content of lycopene in toma-to fruits at the mature stage and overripe stage treated with seaweed extract water-soluble fertilizer was significantly in-creased by 45.39%and 17.53%compared with CK,respectively.A total of 12 phenolic acids and 4 flavonoids were detect-ed by high performance liquid chromatography,among which chlorogenic acid and benzoic acid had relatively high con-tent.Compared with CK,silicon liquid fertilizer could significantly increase the total phenolic acid content of tomato fruits by 5.89%,and the content of rutin was significantly increased by 51.11%.Amino acid water-soluble fertilizer could significantly increase the content of p-hydroxybenzoic acid in tomato fruits by 20.62%.The application of silicon liquid fertilizer and amino acid liquid fertilizer could significantly increase the yield by 18.76%and 15.33%,respectively.In con-clusion,the application of silicon liquid fertilizer had the most significant effect on improving the nutritional quality and yield of tomato fruits,and could be promoted and applied in greenhouse tomato production.The research results can pro-vide theoretical guidance for the cultivation of high-quality greenhouse tomato.