As a new type of functional fertilizer, fish protein fertilizer is widely used in the organic cultivation of greenhouse tomatoes, which can significantly increase the sugar content of tomatoes, improve the taste of tomatoes cultivated in greenhouses in winter, and advance the ripening time and fruit color of tomatoes.
The application of fish protein organic fertilizers to organic cultivation systems has received extensive market attention in recent years. In the planting of flue-cured tobacco, tomato, apple and other crops, it has been fully researched that the application of fish protein organic fertilizer can improve the quality and yield of crops. When applying fish protein organic fertilizer, it is best to apply inorganic fertilizer as a nutrient supplement. Fish protein organic fertilizer has a certain effect on improving the sugar content and taste of tomatoes, but this effect decreases with the increase of tomato fruit size. Therefore, in actual production, it is necessary to adjust the application concentration of fish protein organic fertilizer for different tomato varieties and fruit types to achieve the desired effect.