Fruit tree antifreeze measures:
1, soil and package trunk against the cold of the evergreen fruit trees, especially saplings, can be earth and trunk dressing method. Generally about 10 cm of soil is cultivated. Wrap the trunk with straw or plastic film.
2, the trunk of white coated with lime and water and a small amount of salt and mix well brushing fruit branches dry, can reduce the freezing injury. In the whitening agent can be properly added insecticide or copper sulfate, can effectively kill overwintering eggs and bacteria.
3, canopy cover conditions, before the advent of cold air, covered with a plastic film or straw and other objects, the effect of reducing freezing damage better.
4. Orchard smoke with sawdust, debris as smoke smoke agent, put 2-3 heaps per acre orchard, ignite before the advent of cold air, (note non-combustible open flame) can increase the temperature 1 °C -2 °C, effectively reduce the freezing injury.
5, Orchard water conditions of the orchard, in the cold air before the arrival of the orchard surface irrigation or sprinkler irrigation, is conducive to reduce the freezing damage.
6. Pruning The late autumn shoots and unaged shoots of fruit trees must be trimmed in time to avoid freezing.
Fruit freeze treatment:
Once frozen, fruit trees must take timely measures to strengthen management and restore tree vigor to reduce losses. The measures include:
1. After loose soil damage, it is necessary to timely loosen the soil under the canopy, so as to keep the ground heat, increase the soil temperature, and facilitate the growth of the root system.
2. After fertilization, the function of the tree body is significantly weakened, and the ground can be diluted with water. After the new leaf is unfolded, the mixture of 0.5% urea and 0.3% potassium dihydrogen phosphate is sprayed on the leaves and sprayed every 7-10 days. -3 times.
3. Timely prevention and control of pests and diseased fruit trees after freezing, the tree vigor is weak, anthrax, spider mite and other diseases and pests are prone to occur, and timely prevention and control.
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