In order to scientifically optimize the formula of substrate fertilizer and improve the yield and quality of tomato substrate cultivation conditions, this experiment applied three different functional fertilizers on the basis of reducing the application of compound fertilizer. The treatment without reducing the application of compound fertilizer was used as a control, and a total of four treatments were set up, no reduction of compound fertilizer (CK), reduced application of compound fertilizer+combined application of slow-release fertilizer (T1), reduced application of compound fertilizer+combined application of protein & enzyme fertilizer (T2), reduce the application of compound fertilizer and combine with the application of highly active microbial fertilizer (T3). The effects of various treatments on the growth, yield, and quality of taste-like tomato ('High Sugar 100') were studied by using bag culture. The results showed that compared with the control group, T3 treatment significantly increased the accumulation of dry matter in the shoot and root parts of plants, increased single plant yield by more than 50％, significantly increased the sugar acid ratio and vitamin C content of fruits, and significantly reduced the nitrate content in the fruits. This treatment also significantly increased the content of alkaline hydrolyzed nitrogen and available phosphorus in the substrate. There was no significant difference between T1 treatment and the control, while T2 treatment had the worst effect. In summary, under the bagged cultivation conditions of 8 L substrate per tomato plant, the T3 treatment with a substrate fertilization scheme of "8 g of compound fertilizer+2 g of highly active microbial fertilizer" could significantly improve the yield and quality of spring season taste-like tomato, and the quality improvement effect was significant.
维普
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