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Top 10 antifreeze methods of fruit tree

When the temperature is below the limit that they can tolerate, the fruit trees will suffer from freezing damage. Therefore, antifreeze is an important task in the winter management of fruit trees. The top ten antifreeze methods for fruit trees are as follows:

1. Fertilize the tree

Early application of base fertilizer is one of the key measures to prevent frost and increase fruit trees. It can nourish and strengthen trees and enhance the ability of fruit trees to resist cold. Therefore, special attention should be paid to the application of base fertilizer in orchard. It is important to promote early root application and deep application to promote root absorption, prolong leaf photosynthetic life, increase photosynthesis and increase nutrient reserves. The base fertilizer should be based on the fermented farmyard manure (organic fertilizer), combined with the application of quick-acting fertilizers such as nitrogen, phosphorus and potassium. The artificial fertilizer or artificial application of the granular fertilizer is suitable for artificial or mechanical application.

2. Irrigation before freezing

The principle of releasing a large amount of latent heat when using water to cool down is to immerse the orchard once in the soil before freezing and freezing, which is beneficial to water storage and waterlogging, calming the ground temperature, preventing frost damage of fruit trees and reducing the source of overwintering insects. The amount of winter irrigation should be such that all water is infiltrated and saturated with the root distribution layer (40-60 cm) on the day of irrigation. After irrigation, the soil moisture is maintained at 60% to 85% of the maximum water holding capacity in the field.

3. The trunk is painted white

Before entering the winter, use the whitening agent to evenly whiten the trunk and main branches of the fruit tree to prevent freezing and sunburn, and to kill germs, eggs and adults hidden in the trunk. The preparation method of the whitening agent is 10 parts of quicklime, 1 part of sulfur powder, 1 part of salt, 0.1 part of vegetable oil, and 20 parts of water. It is advisable to prepare the whitening agent to be dry and moderate, so that it is not suitable for spraying. When applying the brush, it should be meticulous and thoughtful, so that the whitening agent can penetrate into the skin seam, especially the diseased branches, bark seams and branches should be painted.

4. Surface coverage

Covering the rows of fruit trees with straw, wheat straw, hay grass, corn stalks, etc., it can block the cold wind from invading the root neck, and can also reduce the evaporation of soil moisture, and play a role in protecting and warming. When covering, the straw and other coverings should be cut into small sections of 15-20 cm long, covered evenly and covered with a layer of soil to prevent the wind from being blown away. For 1-3 year old saplings, the mulch of 1 m square can also be covered in the tree tray before the frost, which can maintain the soil temperature and humidity.

5. Buried in the cold

Before the soil is frozen in the north, the young trees can be directly pressed and buried with fine tidal soil. The thickness of the cover is 15-20 cm. Note that when the soil is buried, the surface layer of the soil should be smooth and tight, and the wind will not leak. For large trees that cannot be buried, they can be soiled at the root neck, with a thickness of 20-30 cm, and removed in the coming year. Do not remove the soil from the tree tray to prevent the roots from being exposed to frost.

6. Tree package

In the case of trees with poor cold resistance planted in the front and back of the house and in the courtyard, the trunk or main branch can be wrapped with the grass or grass rope before the arrival of the large freezing, which can prevent the cold wind from invading and reduce the water content of the trunk. Loss. Before winding, it is best to soak the entangled material in lime water for 1-2 days to disinfect and prevent the pests from invading the fruit trees. In the coming spring, the grass will be burned in a concentrated manner to eliminate the wintering pests and diseases.

7. Crown cover

For southern evergreen fruit trees, especially saplings, the canopy can be covered with a non-woven fabric, plastic film or shade net before the cold wave comes. The lower part is tied with a rope or buried in the root soil, and it can also prevent freezing. The role. When the cold wave turns fine, the cover can be uncovered when the temperature is above 5 °C during the day, and the frost is covered at night.

8. Set the wind barrier

Use shelter forests to improve the microclimate of the orchard, reduce the wind speed, inhibit the drought, reduce the freezing damage, and create a shelterbelt to adopt the combination of arbor and irrigation. The evergreen tree is the most ideal. If there is no windbreak, you can use a branch or hay to construct a windproof fence or windshield about 1 meter high on the northwest side of the orchard to protect the root neck from freezing. For small-area young orchards, windshield can be set up with sorghum and corn stalks every 2-3 rows of saplings.

9. Spray water or lime

Before the arrival of strong cold air, continuous water spray or fruit tree antifreeze on the orchard can effectively alleviate the sudden drop of the orchard temperature or mediate the cell membrane permeability, and can better prevent frost. In the evening after the snow, the grainy quicklime per acre is 50-100 kg. Quicklime can increase the temperature in the garden by decomposing the emitted gas and reduce the harm of radiation cooling.

10. Set antifreeze candles

Anti-freeze wax should be used in the coldest night in winter, and it will be ignited around 12 o'clock in the evening. Pay attention to controlling the fire and stop it when it is dawn in the morning. The orchard antifreeze candles we produce will burn for more than 8 hours. In other words, you don't have to get up at night to watch if the flames are extinguished. This will ensure that you have a good night's sleep. Most people choose against spring frost candles for the orchard in the winter. What are you waiting for?

orchard antifreeze candles, against spring frost candles



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Add: 1708 B Lecheng, Qiaoxi area 050000 Shijiazhuang, Hebei, China.
Tel: +86-311-67909825  
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