Citrus antifreeze measures
Trunk bales: The straw is wrapped around the trunk of the citrus with a height of 1 to 1.5 meters. If we enclose a layer of film outside the straw, the effect is better. To bundle the grass on the trunk, be sure to remove the bundle before the summer comes. Otherwise, it is unfavorable to the growth of the plants and can also cause pests and diseases.
Ground Covering: Covering a layer of ground in citrus groves with straw, leaves, weeds and other items will help increase the temperature of the ground and reduce the degree of damage to the roots of the trees caused by freezing. The thickness of the cover is preferably 2 to 4 cm.
Earthworms: Because citrus grafts cannot be buried in the soil, they must be exposed. Generally, the soil of the citrus pods is thinner. Earthworms can raise the temperature of the ankles, protect the roots, and reduce the degree of freezing damage to the ankles. Covering the thickness of 6 to 10 cm is appropriate, covering the width of the earth to cover the chin. When the temperature rises, summer is coming and the soil will be transported away.
Sheltered antifreeze: In addition to the main stem bale, the entire species can be treated with the method of freezing and sheltering. During the scaffolding, except for the ventilation and ventilation of the sunny side, the upper side and other three sides shall be tightly closed. It is also possible to cover the whole tree with agricultural film and let it become a greenhouse. After the temperature rises, it is necessary to immediately release the agricultural film so as not to overheat the leaves or plants.
Smoke Insulation: Insulated with sawdust, weeds, leaves, rice hulls, dead branches and other materials to allow it to ignite, allowing smoke to cover the orchard, forming an insulation layer that can increase the temperature in the garden and reduce the degree of citrus frost damage . Generally when setting up a smokestack, small orchards are arranged 3 to 4 per mu, and large orchards are arranged 1 to 2 per mu.