What should you pay attention to when growing watermelon?

Sun the watermelon seeds in strong sunlight for 2 to 3 hours; the sun-dried seeds cannot be germinated and sown directly. They must be soaked first. Soak the seeds in warm water at 55°C for 20 minutes. Stir while soaking, then soak in room temperature water for 6 to 8 hours; after the seeds are soaked, take them out, put them on a wet towel to rub off the mucus on the surface of the seeds, and then wrap the evenly spread watermelon seeds with a clean wet towel for constant temperature germination. ;The temperature should be kept at 32℃. If there is no constant temperature equipment, it is completely feasible to put the wet towel wrapped with the seeds in a sealed bag and carry it with you in your pocket to keep warm. Once the seeds are white, you can sow them

The root system of watermelon is good for aeration, so when choosing the soil. It is best to choose deep and well-drained soil, but the first recommendation is sandy loam soil. And the pH of the land should not deviate too much, which will affect the normal growth and development of watermelon. It is best to have neutral pH of the land.

When planting watermelons, fertilization is too blind and the amount of fertilizer exceeds the standard. Reasonable fertilization cannot be achieved. Usually, the potassium fertilizer is insufficient and the nitrogen fertilizer exceeds the standard. In addition, when fertilizing, too much quick-acting fertilizer is used, insufficient amount of organic fertilizer is used, or no organic fertilizer is used at all. In this way, after several years of planting, the phosphorus content in the soil exceeds the standard and the nitrogen and potassium content are insufficient

Watermelon Use the three-vine or four-vine method for pruning. For example, Tornado can use three-vine pruning, while the extra-large Jingfeng Mibao and Jingfeng Mibao No. 2 can be pruned with four vines. Leave 1 standard melon per plant, preferably away from the root. About 1m. If the melons are close, the yield will be small and the yield will be low. Crooked melons and excess melons should be removed. After the fruit grows to a certain size, the melon should be turned in time. Pay attention to the direction of growth of the watermelon, and turn one-third of the watermelon each time.

It is necessary to control the ventilation time during the melon expansion period. Ventilation should be carried out when the temperature of the greenhouse is higher than 28°C, and ventilation should be stopped when the temperature of the greenhouse is lower than 26°C. The specific judgment should be based on the growth of watermelons in the greenhouse and the weather conditions outside. When the watermelons are growing vigorously, the ventilation time should be extended to control the growth. When the growth is weak, the ventilation time should be appropriately shortened to promote growth. When the outside temperature is high and the light is strong, the ventilation time can be appropriately extended to avoid excessive temperature in the greenhouse

Watermelons in the expansion stage need enough water to grow, but the irrigation must be appropriate and even, it can be 5 -Irrigate once every 7 days, and keep the soil dry and wet. If the soil dries first and then becomes wet, melons may crack. Therefore, be sure to water frequently with small amounts of water to maintain uniform humidity. Please note that if you use drip irrigation or sprinkler irrigation, you can irrigate according to the actual conditions in the shed.

Mainly prevent and control diseases and insect pests such as Fusarium wilt, anthracnose, viral diseases, and red spider mites, yellow melons, and melon maggots that harm watermelons. The affected branches and leaves, melon vines, melon seedlings, etc. must be removed in time, and the use of The corresponding medicine treats watermelon.