It is very hot in summer. How to grow tomatoes in summer?

Under the condition of high temperature and strong light, tomato leaves will consume too much nutrients and accumulate too little nutrients, which will lead to yellowing of leaves. Leaves will also roll up. In severe cases, the whole leaf will be cylindrical, and the leaf will become hard and brittle. Both high and low temperature leaves will turn yellow at the same time. Tomatoes are prone to sunburn on their shoulders, and their fruits shine like transparent leather, and then turn into white or yellowish brown patches. Some fold, shrink and harden, and then droop, and the pulp becomes brown patches. The sunburn site is infected by bacteria or parasites, with black mold or brown rot.

Tomato fruit is easy to shine directly under strong light, which can easily lead to sunburn. It should be emphasized here that the planting density of tomatoes in autumn is generally much higher than that in spring. It is suggested to plant 5000-6000 plants per mu to reduce the occurrence of sunburn. It is the best formula to control pests and diseases in summer to control germs and improve plant disease-resistant nutrition. When there are no pests and diseases, the occurrence of pests and diseases in summer can be well controlled by spraying nutrients such as drugs and amino acids on crops.

But it is not resistant to strong light and high temperature. When tomatoes are cultivated in the open field in summer, due to the high temperature, rainy days and high light intensity in summer, tomatoes often have low yield, poor quality and serious diseases, especially virus diseases, which bring great difficulties to production management. It will not be conducive to the rooting and growth of tomatoes. Tomatoes in this season can be planted in flat beds. The flat water area is large, and the whole land will be wet, which can reduce the occurrence of viruses. It needs proper close planting, which will block the sun and expose the soil when growing, forming a microclimate environment.

In summer, tomatoes should first choose varieties with good heat resistance and virus resistance, which can set fruit normally at 30-35 degrees. TY virus broke out in recent years, especially in tomatoes in summer. There are many insects spread by viruses, which are more prone to virus outbreaks. Variety selection is particularly important, such as American powder three. Sowing and pre-seedling management. Leveling the land, combining with soil preparation, applying sufficient manure, mixing the soil with carbendazim, scattering in the ground, watering, uniformly scattering sterilized seeds in the ground, covering with soil, and covering with plastic film for moisture retention.