Causes of dry tip of tomato sepals and its control methods

Sepals are now a standard measure of fruit quality, and when sepals are dry, rotten, and yellow, the price of tomatoes is greatly reduced. However, in the process of planting, the dry tip of western red sepals is a common phenomenon, so what is the reason for the dry tip of tomato sepals? Let's get to know each other.

1. Unreasonable use of hormones

Many vegetable farmers in the tomato red, the use of ethephon concentration is unreasonable, generally 40% ethephon in 3000 times more appropriate, but some vegetable farmers eager to achieve success, using a thousand times or hundreds of times the concentration, improper use of concentration, easy to cause tomato sepals dry tip. Therefore, when using hormones to promote red tomatoes, we must reasonably match the concentration according to the instructions for use of the drug. We must not mix them at will. At the same time, we should pay attention to the matching of hormones. Some hormones will produce resistance.

2. Deficiency

During the tomato color conversion period, if the planting lacks trace elements, it will often cause abnormal phenomena such as sepal yellowing or leaf curling. Therefore, in the tomato color conversion period, foliar fertilizer should be sprayed in time to supplement the trace elements needed by the plant. When topdressing the soil, foliar fertilizer should also be supplemented to avoid curling and drying the sepals due to lack of elements.

3. Excessive water control

Winter temperature is low, if the soil moisture is large at this time, the disease will be more serious, so many vegetable farmers often control water in winter, but if the water control is excessive, it will also cause sepals to turn yellow or curl. Therefore, in winter water control disease prevention is to keep the soil moist under the premise of water control, to avoid excessive water control caused sepals yellow.

4, low temperature

In winter, some spraying because of poor heat preservation effect, or rainy days watering, resulting in low temperature for a long time, because the root activity is less, the absorption of nutrients and water is less, the plant nutrition supply is insufficient, a long time will lead to sepals yellow curly. Therefore, in winter tomato color conversion period should pay attention to heat preservation, so that the daytime between 25-28 degrees, at night to ensure that more than 16 degrees, reduce sepal dry tip phenomenon occurs.

The above is an introduction to the causes and control methods of tomato sepals. I hope it can help you. If you want to know more about it, please pay attention to us.