Apple tree pruning in winter is an important measure to adjust the structure of the tree and regulate nutrient distribution, which needs to be treated with care. In fruit tree winter shears, whether you want to trim yourself or ask someone to trim, you must adhere to the "four hands-free" principle.
First, there is no pruning scheme
Fruit trees are cut in the same orchard in winter. Even in an orchard, there are still major and minor contradictions. Therefore, before pruning, we must first make a pruning plan based on the status of the orchard and outstanding issues. Hastily pruning without a plan is likely to be contrary to expectations. The development of pruning plans should consider the following factors: fruit tree species, tree age, tree shape, growth status, fruiting status, branch length, density, and number of flower buds, fruit tree pruning response in recent years, and so on.
The second is that there is no good cut or saw.
In order to save money, a considerable number of fruit farmers still buy cheap shears and saws, each costing about 15 yuan, some of which are about 10 yuan. Such shears and saws are very difficult to use. Do not bend the saw blade, and the cutting edge is rough and rough, and it is difficult to heal. If you use good shears and saws, you will not only cut trees and save effort, but also the quality of the work is high. Protective agents are saved. With a good amount of shears and saws for a winter job, the labor cost saved is enough to buy a set of good shears and saws. As the saying goes, "people are not as fast as tools."
The third is no hands without wound protection
Apple tree shears and sawheads need to be protected in time. They will be air-dried after being exposed for more than half a day, and will crack in one or two days. In the future, when exposed to wind and rain, they will mold, dry and rot. Normalized operation should be done after cutting one or several strains, and then apply wound protection agent. If the wound diameter is more than 1 cm, apply it evenly, and then paste it on clean plastic paper. The inner red fruit bag and newspaper are very effective. A wound of about 2 cm in diameter can heal that year.
Fourth, no hands without disinfectants
In recent years, the spread of apple tree virus disease, such as apple tree mosaic disease and apple tree mosaic disease, can spread from several trees to the whole garden year by year within a few years, which seriously affects fruit quality and price. Trimming tool exposure to infection is an important way of viral disease transmission and must be given high attention. Pruning a tree with a virus disease is generally done by marking the tree with a virus first and leaving it till the last. Cut the normal tree first, cut the virus tree after disinfection, cut and saw with disinfectant solution once. The disinfection solution can be immersed in 2% to 5% fire alkali, 3% to 10% disodium phosphate, 75% alcohol and potassium permanganate solution for 1 minute. Viruses and rot trees can also be protected against transmission with another tool.
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