1, regulate the temperature inside the shed
In winter, tomatoes are most likely to produce stiff fruit, especially in the long-term rainy and snowy weather, less light, high night temperatures, less nutrients produced by tomato leaves during the day, and large nighttime consumption, often forming more rigid fruit. In this case, the night temperature can be lowered to 10 ° C ~ 12 ° C, so that the tomato is maintained at the lowest growth temperature to reduce nutrient consumption, can reduce the occurrence of dead fruit.
2, pay attention to reasonable fertilization and watering
Insufficient supply of fertilizers leads to poor growth of plants, or excessive fertilizers cause long-lasting plants, which are likely to cause stiff fruit. Especially in the late growth stage of the tomato, it is necessary to provide sufficient nutrients for its growth, especially pay attention to make up the potash fertilizer to avoid the large amount of fruit in the tomato due to lack of fertilizer. Winter tomato topdressing is generally based on NPK compound fertilizer or organic fertilizer. It is appropriate to apply about 20 kg of NPK fertilizer per mu per acre, and appropriate application of calcium fertilizer. Watering in winter should pay attention to the amount of watering should not be too large, it is best to use micro-irrigation, avoid flooding with large water, so as to avoid water damage at low temperature, causing the roots to weaken the ability to absorb nutrients and cause stiff fruit.
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