How to manage vegetable seedlings? Cultivation and management techniques of vegetable seedling

In general, the management of vegetable seedlings is very important. Only when it is managed from the seedling stage can we ensure the healthy growth of vegetables in the future. Here is a brief introduction to the management of seedlings in vegetable cultivation techniques.

First, promote the combination of control

Insulate and moisturize before emergence. Promote seed emergence early. After the emergence of the seedlings to the heartbreak period, properly control the temperature and control the humidity to prevent the seedlings from growing. Strengthen management after breaking the heart. Look at the sky, see the ground, see the seedlings watering, and dilute the fertilizer to promote the vegetative growth of stems and leaves. Appropriate seedlings before seedlings. Strengthen seedling exercise.

Second, insulation and humidity control

Cold bed seedlings should take measures such as multi-layer coverage in the cold season to improve seedbed insulation. Because the middle and lower reaches of the Yangtze River are mostly rainy or snowy days. The humidity of the seedbed is large. Therefore, reducing the humidity of the seedbed is an important measure to ensure the safe wintering of the seedlings. At this time, the outside air is humid. It is not possible to use ventilation and dehumidification. Fine soil. Let the dry soil absorb some of the water in the soil to reduce the humidity. If there is a low temperature seedling, use a mixture of methyl thiophanate or other powder to spread the fine soil and sprinkle it on the bed surface. Do not spray with water.

Third, fake planting

Usually fake once. 3 to 4 leaves is good. The setting of the fake plant bed is basically similar to that of the seed bed. After the Spring Festival, the temperature gradually rises. The fake planting beds after the Spring Festival in the middle and lower reaches of the Yangtze River generally use plastic small arch sheds. The fake plant should be selected for sunny days. It is best to "cold tail clear head". 3 to 4 hours before the planting, the seedlings should be watered to prevent excessive damage to the root system. After the seedlings are pulled up, they should be transplanted immediately into the fake bed. The roots are prevented from being sun-dried and dried by the wind. The distance between the seedlings is 8-10 cm. The fake plant should be shallow. Generally, it is better to use the cotyledon higher than the soil surface of 1-2 cm. It should be done while planting. The amount of watering is soaked after the soil layer reached by the roots of the seedlings after watering. After the fake planting, shed for 2 to 3 days. Basically do not ventilate.

After the seedlings are slowed down, the ventilation should be increased and the ventilation time should be extended on sunny days. The film should be uncovered early. The film should be covered in the evening. It should also be ventilated for 3 to 4 hours when it is raining. In normal sunny weather, it can be watered once every 2 to 3 days. However, the amount of water should not be too large. Generally, the soil layer where the root system is wet is suitable. It is not too dry in the rainy days. Generally, it is not watered. If the seedling grows with symptoms of lack of fertilizer, it can be combined with watering for 2 to 3 times. Generally, NPK compound fertilizer is used. The spraying concentration is about 0.2%. It can also be used for decomposing fermented human and animal excrement. The dilution concentration is about 10 times. In order to improve the adaptability of seedlings to the environment after planting, the seedling time after planting is shortened. The seedlings should be exercised one week before planting. The plastic film or the cover window should be uncovered day and night to adapt the seedlings to the exposed environment.

The above is all the contents of today, welcome farmers and friends to come to Huinong.com to learn more about the techniques of vegetable cultivation technology!

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