Causes and Prevention Methods of Watermelon Cracking Fruits Why watermelons will burst, watermelons will be ruptured before harvesting or harvested, and broken melons cannot be sold, causing losses. The cracked fruit has a great relationship with the variety. Generally speaking, the peel is thinner and more easily cracked. The seeded watermelon is more susceptible to cracking than the seedless watermelon. The round fruit shape is more susceptible to cracking than the oval watermelon. In addition, the most important reason is the dramatic change in moisture. The cracking of the fruit occurs in the so-called "ubiquitous" stage in which the melon begins to change color. At this time, the development of the melon skin gradually becomes harder, while the development of the melon is still in a vigorous stage.
The time of fruit cracking mostly occurs at night or after rain (after irrigation). When drought occurs, the development of melon is slowed down, and the melon skin gradually becomes hard. At this time, it is raining or watering a lot to make the melon grow rapidly, and the speed of melon skin is slow. Thus the melon skin is "swelled" to form a cracked fruit.
It is related to improper use of the bulking agent. The swelling agent should generally be sprayed on the melon tire on the day of flowering of the watermelon female flower or 1 to 3 days before flowering, and should be applied according to the recommended dosage. Some melon farmers in Jiangsu are applied when the watermelon is nearing maturity.
1. Select the appropriate variety, seed dressing with new high-fat film before sowing, can keep warm, moisturize, swell, increase the germination rate of seeds, and make the seedlings strong. Repel underground pests and isolate viral infections. It can also be mixed with a seed coating.
2. The temperature at the initial stage of fruit expansion should be kept at least 20 ° C, and water should be watered in an appropriate amount. When the fruit is inflated, it encounters high temperature and dry weather, removes the mask of the greenhouse, retains the apical membrane, and prohibits flooding in the field.
3. Before flowering, during the young fruit period and the expansion period, each plant can be activated once, which can activate the plant ecological growth positive energy, broaden the plant conduit path, enhance the water absorption and fertilizer absorption of the plant, improve the fruit yield and quality, and reduce the fruit drop rate. Reduce the incidence of cracked fruit, stiff fruit, and deformed fruit.
4. Spraying the bag-free film during the young fruit period, fruit growth period and fruit expansion period, can quickly form a layer of ultra-thin soft film, which will generate electricity and excitement after chemical exposure to produce a “light film effectâ€. . If you add a cheap paper bag (double set method), the fruit color is more beautiful.
Choose varieties that are not easy to crack and grow. Reasonable application of fertilizer water, especially in shallow soil layers, should avoid excessive changes in soil water content. If the supply of water and fertilizer is insufficient or the adverse environmental conditions are encountered in the early stage of watermelon development, the development of the melon should be affected. It must not be rushed to make progress, especially in the case of watering, which should be gradually increased from small to large, or first to carry out the top dressing. The roots are topdressed and watered. Rational use of growth regulators.
Recommended reading: watermelon changed to "mine" more than 2,000 bursts in more than 10 days
As a newcomer to the melon, Dong Feng did not dare to sloppy from turning the ground, loosening the soil, fertilizing and raising seedlings. Nowadays, watermelon is about to go on the market, which can cause Dong Feng’s unexpected things to happen: one day after mid-April, when he was viewing it in the melon shed, he found that many watermelons had big mouths, some were divided into two halves, and some even more. It is fried like a flower. According to the Fuyang News Network, "噼噗, 噼噗..." The low muffled sounds sounded from time to time in the greenhouse.
It turned out that this is the watermelon in the melon shed, which bursts in succession. According to the words of the peasant Dong Feng, "the shed is like a 'mine ray'." This made him not want to think about tea, and he was worried all day long. In this regard, the plant protection expert of the Municipal Plant Protection Society said that the watermelon burst is related to the large temperature difference in the melon shed, and ventilation is needed at the right time.
Dong Feng lives in Qicaiyuan Village, Wenji Town, Yuquan District, and is a melon farmer.
Originally, Dong Feng worked in the field all the year round and rarely touched agriculture. "Working is not a long-term solution, and both parents and children are at home." Dong Feng said that since he heard that watermelon can make money, he put the hard-earned money accumulated for many years into the greenhouse. Last year, he and his father circulated 50 acres of land and began the road to plant watermelon.
As a newcomer to the melon, Dong Feng did not dare to sloppy from turning the ground, loosening the soil, fertilizing and raising seedlings. The gratifying growth of watermelon in the melon shed made him feel very happy. Nowadays, watermelon is about to go on the market, which can cause Dong Feng’s unexpected things to happen: one day after mid-April, when he was viewing it in the melon shed, he found that many watermelons had big mouths, some were divided into two halves, and some even more. It is fried like a flower.
In the next review, the muffled sound of "噼噗, 噼噗" came from time to time. At this point, Dong Feng reacted: this is clearly the sound of watermelon cracking.
This is what happened? How did the watermelon burst? I watched the watermelons, one after another, and the tears of Dong Feng and his family came out.
How to stop the watermelon from bursting? Dong Feng’s family was anxious to turn around. After the incident, he consulted local technical staff at the first time, but everyone did not know the reason. With a mentality of trying it out, he also purchased a lot of medicines for spraying, but it still didn't work.
"50 acres of watermelon, plus seeds, greenhouses, fertilizers, pesticides, labor, etc., a total of 400,000, which is a big loss." Dong Feng said that the phenomenon of watermelon burst has lasted for more than ten days, concentrated in the valley rain (4 Month 19). Every day, he needs to clean out a basket of watermelons from the shed. "About more than 2,000 watermelons have been blown up, and the loss is between 30,000 yuan and 40,000 yuan. The income of the first melon has disappeared."
The Luzhou Evening News reporter saw at the scene that the watermelons that burst in the greenhouse accounted for about 20%, and these cracked watermelons were four or five pounds, and the small ones just had fruit. Beside the melon shed, there are still a lot of cracked watermelons piled up. It is a pity to look at it.
So, why is the watermelon bursting in the end? Is there a way to prevent it?
In this regard, the plant protection expert Zhang Wei of the Municipal Plant Protection Society said that the watermelon cracking phenomenon of Dong Fengjia occurred before and after the rain. During that time, the weather in Fuyang changed, and it was cloudy and rainy. “The temperature is low on cloudy days, and the temperature is too high on sunny days. Dong Feng did not ventilate the greenhouse in time, which made the temperature difference in the melon shed larger. Therefore, the watermelon broke.â€
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