Earthworm Nutrient Solution Promotes Tomato Growth and Improves Fruit Quality
Taking'Luoyang Tomato No.16'as the test material,field experiments were conducted to study the effects of foliar spraying of earthworm nutrient solution on tomato growth,yield,and fruit quality,in order to provide reference for the application of earthworm nutrient solution in tomato production.The results showed that compared with CK,foliar spraying of earthworm nutrient solution during the entire growth period of tomatoes could increase tomato plant height,stem diameter,plant width,stem and leaf fresh weight,root fresh weight,stem and leaf dry weight,root dry weight,and increase tomato yield by 4.8％-17.0％,soluble sugar content by 1.4％-24.8％,soluble solids content by 7.9％-11.5％,soluble protein content by 9.7％-90.3％,and vitamin C content by 10.2％-39.4％,all of which reached the highest value in S5 treatment,and reduced titratable acid content by 8.8％-39.5％,reached the lowest value in S5 treatment;correlation analysis showed that tomato plant height,stem diameter,plant width,fresh stem and leaf weight,stem and leaf dry weight,root dry weight were significantly or extremely significantly positively correlated with tomato soluble sugar content,soluble protein content,vitamin C content,and tomato yield,significantly or extremely significantly negatively correlated with titratable acid content.When the dilution ratio of earthworm nutrient solution sprayed on the leaves was 300,it could better promote tomato growth,increased yield,and improved fruit quality,thereby achieved high yield and efficiency in tomato cultivation.
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