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2. Smoke in orchard: husks, sawdust, turf, and other flammable materials are prepared in the orchard. Every 30m a bunch, ignited before frost, less smoke and more smoke, forming a layer of smog above the orchard to avoid the risk of cold currents. .
3, spray protection agent: general tree spray park with trees, can play sterilization, antifreeze effect.
4. Strengthen the management of soil and fertilizer water: First, the leaf and yellow leaves will be slightly frozen, and the growth potential will be weak. The new high fat film can be sprayed immediately on the leaves. After early spring, apply spring fertilizer early. The second is to deal with the canopy according to the principles of “slaughter on small injuries, pruning on the wounds, and sawing on the big woundsâ€; the third is to strengthen the cultivating soil, increase fertilization, prevent flooding, prevent drought and pest control, and restore the tree vigor as soon as possible. Prevention of post-freezing fluids, anthrax and other diseases.
Citrus cold-proof measures
1, the tree plate cover: with straw, weeds, nylon membrane, etc. cover the tree 10 to 20 cm or bundle the trunk, can prevent outside cold air attack, but also reduce the ground heat loss.