Causes and Preventive measures of Flower and Fruit drop of Tomato

Tomato falling flower and fruit is a common physiological disease, which seriously affects the yield and quality of tomato and causes great economic losses to farmers. So what is the reason why tomatoes drop flowers and fruits? How to prevent and cure it? Let's take a look.

1. Abnormal temperature

In the flowering and fruit stage, too high and low temperature will affect the growth of flower organs, resulting in flower and fruit drop. According to data, when the temperature of tomato is higher than 35 degrees in the day, it will cause flower drop when the temperature is lower than 15 degrees or higher than 22 degrees at night. Therefore, in the fruit-setting period, we should pay attention to the temperature, keep it at about 28 degrees during the day, not more than 34 degrees, and control at about 20 degrees at night, not more than 20 degrees. In the period of high temperature in summer, you can spray anti-falling element to protect flowers and fruits, but pay attention to the concentration, and do not smear the liquid on the tender leaves or stems to avoid poisoning.

2. Flourish and grow

In the environment of high temperature and humidity in summer, as long as the fertility is sufficient, the plant is very easy to grow, and finally cause the phenomenon of flower and fruit drop. Therefore, in summer, we should pay attention to strengthen ventilation during the day, reduce humidity, and build shading networks and other facilities to increase the temperature difference between day and night. At the same time, it is necessary to control the application of fertilizer, especially nitrogen fertilizer, increase the application of potassium and boron fertilizer in the flowering and fruit stage, and apply little or no nitrogen fertilizer, which can increase the fruit setting rate. Finally, foliar spraying can be used to control the growth of plants and reduce the phenomenon of falling flowers and fruits.

3. Boron deficiency

In many cases, tomato flower and fruit drop is caused by boron deficiency, there are many reasons for boron deficiency, the best way is to increase the application of boron fertilizer. Borax can be added to the base fertilizer, generally 1 kg per mu, and foliar fertilizer spraying is provided at the flowering stage, diluted with 250 grams of borax with water per mu, which can quickly supplement the plant's demand for boron and avoid falling flowers and fruits.

4. Improper humidity

Too much and too little water will also lead to plant flower and fruit drop, and it is easy to cause plant overgrowth and flower drop when there is more soil moisture, while when there is a lack of drought, it is easy to cause flower and fruit drop. Generally speaking, it is appropriate to keep 75% of the soil water content during flowering and fruiting, and it is also necessary to strengthen ventilation to reduce the control of humidity and keep it at 60%. Pay attention to watering during drought, do not flood irrigation, small water should be watered frequently.

The above is the introduction of the causes and preventive measures of tomato falling flowers and fruits. I hope it can help you. If you want to know more about it, please follow us.