How to prevent watermelon from cracking

Watermelon is mainly grown in summer, and its fruit is made up mostly of water. Rainy summer, watermelon easy to absorb a lot of water, but after the rain sunny days or sudden drought, watermelon is extremely easy to crack fruit. Watermelon in the growth regulation is more likely to appear is cracked fruit, cracked fruit can only be removed, if not removed may promote rot disease. The harm is more serious, so we should do the following work in production to avoid watermelon cracking.

1. Water control

Planting fields can be selected in higher sandy loam land, and drainage irrigation facilities and ditches can be repaired in the fields, which is conducive to drainage and ventilation. After rain, to prevent water in the field, the ditch can be deeper. Depending on the weather watering, if the recent week does not rain can be watered, to maintain the most appropriate field moisture content can be. Evening watering is best on a sunny day. In the vegetative growth period, more water can be used to promote the growth of vines. After the results to control water less watering or not watering. Sufficient water is needed during fruit expansion, but not more than necessary. No watering until harvest.

2. Fertilizer control

Watermelon fruit growth needs the most potassium fertilizer, potassium fertilizer can increase the flexibility of the peel, generally more potassium fertilizer. Watermelon vine growth ability is strong, in order to balance the growth relationship between fruit and vine, we should apply less nitrogen fertilizer. General base fertilizer is the application of decomposed compost, farm manure, topdressing are quick-acting compound fertilizer.

3. Temperature regulation

Temperature control can be adjusted mainly under the conditions of facility cultivation, mainly to prevent fruit cracking due to excessive growth when the temperature in the shed is too high. After a long period of rain and low temperature, the weather should not be in a hurry to ventilate and warm up. It should be shaded first, and then gradually ventilated, warmed up and exposed to light.

4. Prevention

In the open field cultivation when the use of plastic film, arch shed ahead of growth, miss the rainy season can be avoided. In addition, it can prevent early harvest in low temperature weather. When picking, handle with care during transportation.

There are many reasons for watermelon cracking, there are natural factors, there are human factors, but no matter what the reason, solve the problem, avoid cracking fruit is the most important thing.