Umbilical rot is a tomato prone disease. Light will make the fruit become flat, lighter, sweeten and lose light, and it will seriously make the whole fruit dark and rot, reducing production by 10%.
1. Strengthen management to ensure uniform supply of plant moisture. Attention must be paid to the supply of moisture. Watering in the field should be conducted in the morning or evening.
2. Select the strong soil with strong fertilizer and the deep sandy soil of tomato. In combination with deep plowing and multiple application of organic fertilizers, the land of the umbilical rot often appears, and 50 kilograms of calcium carbonate per mu is evenly spread on the ground and plunge into the plough layer.
3, a reasonable fertilization. Avoid using unripe organic fertilizers, or applying excessive fertilizer concentrations to burn the root system. Pay attention to the reasonable application of nitrogen, phosphorus and potassium fertilizers. Do not apply nitrogen fertilizer too much. In the beginning of the fruit set after the tomato spray of new high-fat membrane + fruit Zhuang Ti Ling, can make tomato fruit handle thicker, smooth water and nutrient delivery, increase nutrient flow, promote fruit development and enlargement and control of bacteria breeding.
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