The latest ways to prevent watermelon from cracking

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

1. Water control

Planting fields can be selected in the higher sandy soil, in the field to repair drainage and irrigation facilities, ditches, conducive to drainage and ventilation. After it rains, to prevent the accumulation of water in the field, the ditch can be deeper. Look at the weather watering, if it doesn't rain in the last week, you can water it, just keep the most suitable field water content. It is best to water it in the evening on a sunny day. More watering can promote the growth of leaf vines during the vegetative growth period. After the result, it is necessary to control the moisture to water less or not. Enough water is needed during the fruit expansion period, but not more than needed. Do not water after maturity before harvest.

2. Fertilizer control

Watermelon fruit growth needs the most is potash fertilizer, potash fertilizer can increase the flexibility of the pericarp, generally more potash fertilizer. Watermelon leaf vine has strong growth ability, in order to balance the growth relationship between fruit and leaf vine, we should apply less nitrogen fertilizer. In general, base fertilizer is the application of mature compost, farm manure and topdressing are quick-acting compound fertilizer.

3. Adjust the temperature

Temperature control can only be adjusted under the condition of protected cultivation, mainly when the temperature in the greenhouse is too high to prevent the fruit from growing too fast. When the weather clears up after a long period of rain and low temperature, do not rush to breathe and increase the temperature, you should shade the sun first, and then gradually ventilate, increase the temperature and see the light.

4. Prevention

Plastic film is used in open field cultivation, and the arch shed grows in advance, which can be avoided by missing the rainy season. In addition, it can be harvested in advance in low temperature weather to prevent it. When picking, handle it gently in transportation.

There are many reasons for watermelon fruit cracking, including natural factors and human factors, but no matter what the reason is, solving the problem and avoiding fruit cracking is the most important thing.