Editor's note: After the snow is over, the temperature is not too low, the soil has not been frozen, and we should seize the opportunity to carry out winter pruning of fruit trees. The purpose of winter shears is to open the light path to allow the fruit trees to be transparent and branches to see the light. The second is to balance the tree vigor and promote the balance of the upper and lower fruit trees, the balance between the external and internal fruits, the balance between vegetative growth and reproductive growth, and the tree body to maintain the golden mean. situation. At the same time, two fundamental problems are solved: one is the problem that affects management operations, and the other is the problem of air and light transmission. When pruning, organic fertilizer should be applied in combination. According to the condition of the tree, the number of flower buds, and the degree of fertility of the soil, it is determined whether the pruning method or the pruning method should be used to grasp the degree of pruning and the amount of pruning. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone Endoscope Instruments,Endoscope Autoclavable Lense,Laparoscope Instruments,Ureterorenoscopy Set ZHEJIANG SHENDASIAO MEDICAL INSTRUMENT CO.,LTD. , https://www.shendasiaomed.com
In addition, when trimming, you should use high ladders to reduce the number of trees. Do not wear hard-soled shoes, especially leather shoes, big shoes, and nailed shoes, so as not to step on the bark, it is advisable to wear rubber shoes and cloth shoes. After trimming, it is necessary to protect the cutting edge with a protective agent, such as oil, seal and shear.
The three principles of fruit tree winter cut
The principle of trimming the tree-trend is to balance the tree's vigor and promote the tree's moderate health. Before cutting, observe the orchard's tree-trend, and then decide whether to use the "trend" or "close" method of pruning. What needs to be emphasized is that pruning is only a means, and it is best to combine organic fertilizer and fertility in order to achieve ideal results.
The principle of opening the light path Another purpose of winter pruning is to open the light path so that fruit trees can reasonably occupy space. Qiaohua needs a lot of space. If it is already covered, it must be reshaped. If necessary, it must be thinned to allow temporary strains to give permanent strains a sufficient development space. The vegetative growth of dwarf trees and short-stem trees is relatively Slow, nutrient accumulation is better, and the space required is relatively small. Whether it is Qiaoshushu or dwarf trees, we must make it a reasonable use of space in the plastic pruning to achieve ventilation and light, so as to produce good fruit.
The principles of light weight should not be heavy. Fruit trees should rely on short and medium branches and sticks. In order to produce enough fruit and produce good fruit next year, pruning in winter should strictly follow the principle of light should not be heavy, and can stay as far as possible to avoid Excessive trauma. In plastic pruning, the amount of branches can be left to 50,000 to 60,000. The remaining branches, after fruiting and fruiting in the next year, the number of results can reach more than 80, and all are high-quality fruit.
After the pruning of the saw sculpting mouth, it is necessary to timely apply the sealing and cutting oil to protect it from frostbite to cause rot disease to occur in the next year.
The three problems of fruit tree winter cut
Leaving no slant, a lot of growers inadvertently left oblique slugs when pruning fruit trees, and some had small tails on their slugs, which made it difficult for them to heal. Here, not only is it easy to run moisture, rain, and rot bacteria, but also makes nutrients not circulate, eventually causing the cornices to harden and die. The correct method of pruning is: for a small slant, just flip the scissors up and cut it again; for a big slant, use a knife to flatten, do not allow the skin to grow longer than wood, and let the skin be shorter and tighter. Xylem, leaving a long point, and then sealed with drugs to ensure full healing.
Strictly sealing many growers only seal the top of the cut kerf, without sealing the edges, causing black water to rot. After the oscillating mouth oscillates and pulls back and forth, the surrounding phloem has been damaged or cracked. The rain easily flows in and the bacteria are easily invaded. The correct method is: seal the top and then seal the surrounding, the edge of the drug cracks wet medication, so that healing is also fast. If it is found that the size saw cracks, it must be sealed again.
Protecting the sick rot rot is a weak parasite. After the scraped sick belt has been burned and buried, the fruit grower will only wipe the treated sickness. The small sickness will be cured, and the big one will turn black and rot. The correct method is: After disinfection and sterilization with the drug, and then use the cure to seal the disease, the standard is not exposed xylem. It should be noted that it cannot be wrapped in plastic paper for a long period of time, as it can cause moldy rot in the xylem.
Four points of fruit tree winter cut
Before the defoliation of trees, trimming walnuts, grapes, etc. can easily cause fruit trees to injure the flow. After deciduous cutting, fruit trees such as apricot, plum and peach are cut first, and then fruit trees such as apples and pears are cut.
The tree vigor should be cut first in the same species, then in the meantime tree and then in the tree.
Spend a large amount of trees to properly cut early, thinning out some of the weak branches and weak shoots, so that the tree's limited storage of nutrients concentrates on the remaining shoots, laying a good foundation for next year's results. The juniper tree cut can identify the flower buds, so that the winter cut flower buds, to ensure that there is a certain amount of production.
Areas with the same variety, high altitude winter cold fruit area above 800 meters should be properly cut, 700 meters below the low altitude warm fruit area should be properly cut. According to investigations, the degree of healing of the cut slash and the occurrence of rot disease have a causal relationship with branch freeze injury. Severely cold winter fruit areas can be trimmed one month before sprouting, and miss the low-temperature and cold period through appropriate late cuts, avoiding frozen stem cuts and reducing the incidence of rot.