Dormancy is affected by the environment, if it is a continuous low temperature environment, can not accumulate nutrients, will not germinate.The termination of dormancy process is also carried out slowly, after meeting a certain low temperature, it will take a period of warm temperature to germinate and resume growth.It needs to go through 1000-1500 hours of low temperature, at 7 degrees, in order to break dormancy, but it also depends on the specific variety.
1. Physical dormancy breaking method: When the temperature is between 7 and 8 degrees, it is necessary to cover with film and add hay outside the shed for heating.Uncover the hay at night and cover it in the morning, which is conducive to some cooling measures such as low temperature at night, about 20-30 days of treatment to ensure its cold demand, and later warming can break the pruning.In addition, after dormancy, the temperature can be detected at night, when the temperature is lower than 12 degrees, water is sprayed on the fruit trees every day at an interval of 40-70 minutes, so as to promote germination and break dormancy.
2. Chemical dormancy-breaking method: The chemical dormancy-breaking method uses a face-breaking agent to break the dormancy.There are many kinds of dormancy-breaking agents, such as mineral oil plus ammonium nitrate or growth regulators, etc., and cyanamines can also be used as dormancy-breaking agents.Among them, the use of cyanamide dormancy breaking agents is relatively simple, the effect is also very good, and the use of more.
