Sapling refers to the phenomenon that branches and branches of the sapling trees in the northern part of the early spring appear dry shrinkage and death. The main reason is that the north is warm in the autumn and the young trees grow too vigorously. After the harsh winter, the soil has not yet been cleared and the root system has not been able to fully absorb the soil moisture. The temperature in the early spring suddenly rises, and the wind is dry and the young trees become dry due to lack of water. The preventive measures mainly include:
(1) In the fall, the over-developed autumn shoots will be picked up, and the control will prosper.
(2) In the fall, when the fruit tree stops growing, go to the leaves and cut off the strong branches.
(3) The trunk is painted white, or a protective film is wrapped around the base of the tree to reduce transpiration and enhance the ability to resist cold and drought.
(4) timely irrigation in winter, increase soil moisture, enhance the capacity of cold and drought trees.
(5) In spring, young trees are sprayed with a protective agent to reduce the evaporation of young trees and prevent them from drawing.
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