Kandelia candel cold-resistant agent and preparation method and application method thereof

The invention relates to a kandelia candel cold-resistant agent as well as a preparation method and an application method thereof. The kandelia candel cold-resistant agent comprises an agent A and an agent B, wherein the agent A comprises the following components: 0.5-1.0 g.L of calcium superphosphate, 0.2-1.0 g.L of potassium chloride, 0.1-0.2 g.L of boric acid, 0.15-0.3 g.L of nano zinc oxide and 0.02-0.06 g.L of L-cysteine; comprising the following components: 0.3 g.L to 0.6 g.L of sodium alginate and 3 ml.L to 6 ml.L of glycerol. Through the specially prepared cold-proof agent, the preparation method and the application method, the cold resistance of the kandelia candel is enhanced, the damage of extreme low temperature to the kandelia candel is reduced, and the survival rate of the kandelia candel in the wintering period is increased. 本发明涉及秋茄抗寒剂及其制备方法以及应用方法，本发明采用的秋茄抗寒剂是：包括下列组分的A剂：过磷酸钙0.5-1.0g·L-1、氯化钾0.2-1.0g·L-1、硼酸0.1-0.2g·L-1、纳米氧化锌0.15-0.3g·L-1、L-半胱氨