The causes of the dry tip of the sepals of the latest tomato and its control methods

The sepals of tomato fruit have now become a measure of fruit quality, and the price of tomatoes will be greatly reduced if the sepals of tomatoes show dry edges, rot and yellowing. But in the process of planting, the dry tip of tomato sepals is a common phenomenon, so what is the reason for the dry tip of tomato sepals? Let's get to know it.

1. Unreasonable use of hormones

When many vegetable farmers make tomatoes red, the concentration of ethephon is unreasonable, generally 40% ethephon is about 3000 times, but some vegetable farmers are eager to succeed and use a thousand or hundreds of times the concentration improperly. It's easy to make tomato sepals dry. Therefore, when using hormones to promote the redness of tomatoes, we must match the concentration reasonably according to the instructions for the use of drugs, and we must not mix them at will. At the same time, we should pay attention to the collocation of hormones. Some hormones will produce resistance.

2. Element deficiency

During the tomato color conversion period, if the plant lacks trace elements, it will often cause abnormal phenomena such as sepal yellowing or leaf curling. Therefore, in the tomato color conversion period, it is necessary to timely spray foliar fertilizer to supplement the trace elements needed by the plant, and pay attention to supplement foliar fertilizer when topdressing the soil, so as to avoid the crimped dry tip of sepals due to lack of elements.

3. Excessive water control

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

4. Low temperature

Some spraying in winter is due to poor heat preservation, or watering on cloudy and rainy days, resulting in low temperature for a long time, because the root system has less activity, absorbs less nutrients and water, and the plant is in short supply of nutrients, which will lead to sepal yellowing and curling over a long time. Therefore, in the winter tomato color conversion period to pay attention to heat preservation, so that during the day to maintain between 25-28 degrees, at night to ensure more than 16 degrees, reduce the occurrence of sepals dry tip phenomenon.

The above is the tomato sepals dry tip reasons and control methods, hope to help you, want to know more related knowledge, please pay attention to us.