Sprinkle frozen water in time Immediately before the soil is frozen, the fruit trees are poured with frozen water once, poured into the foot, and the foot soles are made to fully meet the water demand of the tree body. This watering is very important. After the tree has fully absorbed and stored a large amount of water, it can effectively slow the water transpiration in the winter tree and keep the tree body has enough water. At the same time, due to the increase of soil moisture, it will help to improve the orchard's microclimate. It can also reduce or avoid saplings, draining or death. For mature trees, the pouring of frozen water will be beneficial to germination, leaf spreading, flower bud differentiation, flowering, and fruiting results in the coming year. Buried cold or root soil In northern China, it is generally late November (low snowy festival) that the fruit trees are buried in the cold or rooted. 1. Method of burying in the cold: (1) Newly planted saplings with poor cold-resistance can be directly plucked before soil freezing and buried with fine fluvo-aquic soil. The thickness of the soil on the branches covers 15 to 20 cm. Note that when the soil is buried, the surface of the soil should be smooth and tight, and no runaway air leakage should occur. (2) The vines must be pruned, fell, dig and buried before winter. Groove depth, width and length depend on the size of the tree, generally 30 to 50 centimeters deep and wide, and 15 to 20 centimeters in surface soil. 2. Method of root-neck soil cultivation: Newly-grown saplings such as seedlings are large, and branches are not rigid and can be used for root-neck soil cultivation. The method is to use fine tidal soil to encircle the roots of the base to cultivate soil. The mound can be 30-40 cm above the ground, and can also be used to change the microclimate around the root body by cultivating 50 to 60 cm high crescent-shaped soil ridges in the north of the roots. Conditions to increase soil temperature and reduce frost damage. White trunk The whitening time is better twice, the first time after the fruit trees are defoliated and before the soil is frozen, and the second is in the early spring. The main part of the white area is mainly trunk, and the sunny side of diseased trees and trunk branches should be painted. Do not apply on twigs or new branches so as not to burn out the buds. Whitening agent formulation and use method: 10 parts of lime, 2 parts of lime sulfur, 1 part of salt, 2 parts of clay and 36-40 parts of water. Liquefied lime is used firstly, the residue is filtered off, the salt that has been opened is poured, and then the lime sulfur mixture and the clay are mixed. Salt mainly acts as a deliquescence solution, which can prevent crusting and peeling after coating. Clay plays an important role in adhesion. Lime sulfur can kill overwintering eggs and prevent diseases and insect pests. The coating liquid preparation should be dry and thin, and should not be lost when brushing. Brushing should be careful and thoughtful, so that the whitening agent penetrates into the skin seam, especially the diseased branches, bark seams, branches and branches should focus on brushing. Bales of straw, newspapers, or plastic chicken skins Plant trees and varieties with poor cold resistance, such as pomegranate and vine, which are planted behind the house and in the courtyard, should not be buried. This method can be used to prevent the cold. The time is usually in late November (Snow Festival). Methods: (1) Pomegranate trees: can be bundled with grass or wrapped around chicken skins, big trees wrapped around the trunk, the main branch, all young saplings. (2) Grape vines: You can wrap newspapers or wrapped around chicken skins. The big trees, small trees, trunks, main branches, side branches, etc. should be wrapped as much as possible. Http://Content/1b4716f2-b213-4bc3-81ed-23b636959e85?cType=2 SARS-CoV-2 Neutralizing Rapid Antibody Test Kit(Colloidal Gold Immunochromatography) is an immunochromatographic membrane assay that uses the immuno-capture method to direct detection of total neutralizing antibodies that block receptor-binding domain (RBD) to novel coronavirus (SARS-CoV-2) from human serum/Na2-EDTA plasma/whole blood specimens. Covid-19 neutralizing antibody test,2019-nCoV neutralizing antibody test,SARS-CoV-2 neutralizing antibody test,New Coronavirus neutralizing antibody test,Novel Coronavirus neutralizing antibody test Shenzhen Uni-medica Technology Co.,Ltd , https://www.unimedicadevice.com
SARS-CoV-2 Neutralizing Antibody Rapid Detection Kit is intended for identifying individuals with adaptive immune response to SARSCoV-2, indicating recent or prior infection or vaccination. Performance of the test is should not be used to diagnose acute SARS-CoV-2 infection. Testing is limited to laboratories certified to perform moderate or high complexity tests.
Fruit tree safety wintering management technology
In winter, in order to prevent and prevent frost damage in fruit trees and ensure safe wintering, the following management measures and recommendations are proposed.