Spring irrigation before spring cold, spring irrigation can reduce the ground temperature, can delay the flowering time of germination. Secondly, it is painted dry, which can apply amino acids to the trunk, which can increase the nutrition of the tree and enhance the cold resistance of the tree. When the temperature comes down to zero degrees Celsius, when the temperature drops below zero degrees Celsius, the firewood will be lit up in the orchard, and the firewood should not be too dry, otherwise the smoke will be less and the effect will not be satisfactory. It is best to have all orchards act in unison so that the results will be optimal. The flower is sprayed with a new high-fat film 600-800 times before flowering to enhance the anti-freezing ability of the tree. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Vero Cell cultured Rabies Vaccine The Vero cell line is the most widely accepted CCL by regulatory authorities and has been used for over 30 years for the production of polio and rabies virus vaccines. Vero Cell Cultured Rabies Vaccine,Rabies Vaccine,Human Rabies Vaccine,Human Rabies Vaccination Changchun Zhuoyi Biological Co., Ltd , https://www.zhuoyi-bio.com