Poor coloring of tomatoes is the key
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Poor coloration of tomatoes has a great relationship with fertilization imbalance. You can use pH test paper to measure the pH of the soil, when the pH is greater than 6.5, especially when it is greater than 7, the soil will inevitably lack trace elements. Can be applied per acre with water flushing or foliar spray fertilizer containing boron, zinc, iron, manganese, magnesium and other elements. It is best to spray on a sunny evening, focus on spraying the back of the tomato leaves, keep the leaves moist as much as possible, extend the absorption time of the leaves, and when necessary, mix insecticidal fungicides to prevent and treat various pests and diseases at the same time.