Fruit shrinkage, lobular disease, yellow leaf disease, etc., which occur in the growing season, are caused by the lack of trace element fertilizer. In winter, a certain amount of trace element fertilizer is applied in combination with the application of base fertilizer, which has good control effect on the deficiency of fruit trees. And the duration of prevention is long.
Shrinking disease. The fruit surface is uneven, the pulp tissue is spongy, the flesh is bitter and the quality is poor. The disease is caused by the lack of boron. Therefore, in combination with the application of the base fertilizer, 0.5 kg of borax or 150 g of boric acid is applied to each adult tree.
Lobular disease. The leaves are narrow, clustered and the leaves are not stretched. The disease is caused by zinc deficiency, combined with the application of base fertilizer, each plant results in 0.5-1 kg of zinc sulfate or 0.5-1 kg of zinc-iron mixed fertilizer.
Yellow leaf disease. The main manifestation is the yellowing of the young leaves of the new shoots. The disease is mainly caused by iron deficiency. Combined with the application of the base fertilizer, each adult tree is applied with 0.5 kg of ferrous sulfate or 0.5 kg of zinc-iron mixed fertilizer.
Fertilization method. According to the symptoms of deficiency, when the base fertilizer is applied, the micro-fertilizer and the organic fertilizer are mixed uniformly and applied to the tree, and watering is required after fertilization, so that the root system can restore the absorption function as soon as possible and increase the storage capacity of the tree body.
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There are mainly the following parts: 1. Sampling swab with disposable sterile plastic rod/rayon head 2. Sterile sampling tube containing 3ml of virus maintenance solution (gentamicin and amphotericin B are selected to better inhibit the fungus in the sample. Avoid the human sensitization reaction that may be caused by penicillin in the traditional sampling solution.) In addition, there are additional parts such as a tongue depressor, a biosafety bag, etc. Intended to use 1. It is used for monitoring and sampling of infectious pathogenic microorganisms by disease control departments and clinical departments. It is suitable for sampling of influenza virus (common influenza, highly pathogenic avian influenza, H1N1 influenza virus, etc.), hand, foot and mouth virus and other types of viruses. It is also used for sampling of Mycoplasma, Chlamydia, Ureaplasma, etc. 2. It is used to transport nasopharyngeal swab samples or tissue samples from specific parts from the sampling site to the testing laboratory for PCR extraction and testing. 3. It is used to preserve nasopharyngeal swab samples or tissue samples from specific parts for necessary cell culture. The virus sampling tubes are loaded with infectious substances, and some are even highly pathogenic substances. Therefore, the requirements for packaging containers are very strict, and three requirements must be met at the same time: 1. The safety of transportation. Ensure that the sample does not leak during transportation. Sampling tubes that comply with WHO regulations and biosafety regulations. 2. The security of preservation. Ensure that the sample does not leak during storage. Sampling tubes that comply with WHO regulations and biosafety regulations. 3. The validity of the sample. Make sure that the sampling tube itself will not have a toxic effect on the sample.
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