The latest management method of watermelon seedling stage

Watermelon can be said to be a "national fruit", almost everyone likes to eat watermelon, in the hot summer to eat a mouthful of chilled watermelon, this feeling is really good. But now watermelons can not only be eaten in summer, but can be eaten in every season using greenhouse technology. Growing watermelons has also become a project for many people to get rich, but the management of watermelons at seedling stage is very important. Today, the editor will talk with you about the management methods of watermelons at seedling stage.

1. Water management

The seedling stage of watermelon is an important stage in the growth of watermelon, which requires a lot of water in the whole seedling stage. Watering enough water before sowing can meet the water needs for seed germination. If there is a lack of water, then we should choose to water it on a sunny day in the morning. But do not do it in the afternoon, because the temperature has gradually dropped in the afternoon, the air is relatively humid, watering is easy to cause diseases and insect pests. And we should pay attention to all kinds of ventilation after watering to prevent the excessive humidity of the seedling bed from reducing the resistance of the seedlings.

2. Ventilation management

Proper ventilation is the key to ensure the robust growth of seedlings, ventilation can effectively improve the environment of the seedling bed. After emergence, ventilation is needed when the temperature rises gradually in the morning. When the temperature begins to drop, the ventilation can be ended, and the vents can be opened according to the direction of the wind. The specification and specific duration of the vent are mainly determined by the surrounding weather, wind volume and other factors. The air volume should not be too large, and the soil of the vents should not be closed at the end of the ventilation to prevent discomfort of the seedlings. Vents can not be in the same place for a long time, so as to prevent the growth of tuyere seedlings.

3. Temperature management

Watermelon seedlings grow a real leaf when it grows the fastest time, at this time we should control the temperature, properly lower the temperature. To prevent the phenomenon of tall seedlings because the temperature is too low, the temperature is controlled at about 22 degrees during the day and 16 degrees at night. When the Hypocotyl stops growing, the temperature can be raised a little bit, and the temperature can be increased by 3-5 degrees. Seven days before the seedlings are successfully cultivated and ready for transplanting, the temperature should be cooled properly to enhance the adaptability of the seedlings to the environment. Improve the survival rate and yield of seedlings.

4. Lighting management

Light is an essential external factor for every crop, and so is watermelon, because watermelon photosynthesis is inseparable from light. If there is not enough light time and intensity in the seedling stage, it is very disadvantageous to the growth of the seedling, and the seedling stage will be depressed or even die. So we must control the light of the seedling bed. Because people usually put a layer of forage on the seedling bed to preserve fertilizer and water, so when the sun comes out, the forage should be lifted in time to improve the light time of the seedlings.

The above is a brief introduction of watermelon seedling management methods, we also need to pay attention to, in cloudy and rainy weather should also be properly opened the forage, not just because there is no sun. Because even because of the weather there is still a certain amount of scattered light, scattered light can also enable the seedlings to effectively carry out photosynthesis. That's all for today's introduction. This article is for reference only. I hope it will be helpful to you.