Management after snow
After cleaning up the snow and snow, the first thing is to clear the snow. It is necessary to clean up the branches of trees and machinery and the snow in the roads in the orchard in time to prevent excessive snow from breaking branches or freezing the roots of the fruit trees. After the snow is cleaned, it should be dealt with in time. If the branches are broken, the wound cream should be applied in the wounds in time to prevent freezing and other measures to protect the wounds and prevent the infection of the bacteria, so that the fruit trees can return to the tree as soon as possible.
Potting frozen water Generally speaking, frozen water needs to be poured thoroughly before freezing. However, some fruit farmers who fail to fill the water before freezing should remedy as soon as possible, and timely fill the fruit trees before the heavy snow. It can not only promote the growth and development of fruit trees, but also keep the ground temperature relatively stable during the winter.
The white painted trunk of the trunk should be carried out before the freezing, and the effect of whitening after freezing is not obvious. However, in order to recover the loss, the trunk and main branches should be evenly whitened with whitening agent before snowing, so that the temperature of the tree body is stable, preventing freezing and sunburn, and killing germs and eggs in the trunk. Adult.
Scientific smoked smoke is a relatively low-cost antifreeze method commonly used in orchards. Fruit farmers should pay attention to the weather forecast in time, and warm the orchard before the big cooling comes. This method can also be used to warm the orchard after snowfall. Smoke is usually 2 to 3 consecutive nights, which can play a good role in cold and frost protection.
The covered tree tray is covered with straw, straw, etc., 10-20 cm thick around the tree tray, or covered with a plastic film to increase the soil temperature.
Remedy after freezing
After loosening the loose soil, it is necessary to loosen the soil under the canopy in time to maintain geothermal heat and increase the soil temperature.
After fertilization and freezing, the function of the tree body is significantly weakened. The ground can be applied with thin water and fertilizer. After the new leaves are unfolded, the mixture of urea and potassium dihydrogen phosphate is sprayed on the leaves, and sprayed 2-3 times every 7-10 days.
Pruning and trimming after freezing can make the tree sprout new and strong and restore the tree potential. If the branches are frozen, the frozen branches should be cut off; if the main side branches are frozen, the cortex is cracked, and the frozen main and side branches need to be sawed. On the frozen branches, the junction between the frozen and unfrozen parts is not obvious. After the spring temperature rises, the main, side branches and branches are cut off in time. To be cut off from the obvious junction of the frozen, cut the mouth with a tree guard to protect the wound.
Spraying the agent against cold can spray the tree general before the low temperature comes, which can effectively improve the cold resistance. Or the fruit grower can spray potassium dihydrogen phosphate and white sugar at noon before the low temperature, and even spray 2 or 3 times to prevent freezing.
After effective prevention of pests and diseases, the tree is weak, and the diseases and insect pests such as anthracnose and red spider are prone to occur. It is necessary to prevent it in time. When it occurs, it should be timely controlled with targeted drug + new high fat film.
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