1. According to the plant demand, give enough fertilizer and water, and apply fertilizer on the basis of applying organic fertilizer to meet the demand for nutrients of fruit tree flowering, fruit setting and new shoot growth. The amount of top dressing can be determined by soil, tree potential, tree age and yield. Generally, the strong young trees on the fertile soil do not have topdressing. The weak young trees on the thin soil can be topdressed with a small amount of fertilizer, and the new high-fat film is sprayed at the right time to greatly improve the pesticide. Effective ingredient rate. Generally, in the middle of March to the beginning of April, watering is carried out in combination with top dressing. Since the temperature is still low at this time, the irrigation amount should not be too large, so as not to lower the ground temperature and affect the root development. For orchards that have not been potted with frozen water for a long time, water should be watered in time, and the generals should be sprayed to protect the trees (the tree will wake up early) to facilitate the germination, flowering and fruit setting of the fruit trees.
2. Re-cutting before flowering is an effective measure to correct winter shear errors and make up for the damage of the original winter tree shape due to climate and mechanical damage. This measure can adjust the proportion of flower buds and leaf buds, and coordinate the relationship between growth and results. For the young trees with the results, the flower buds should be retained as much as possible to alleviate the vegetative growth; for the small-year trees in the fruit-bearing period, the flower buds should be retained to obtain a certain yield; for the fruit trees in the fruiting period, the flower buds should be The ratio of leaf buds is 1:3 to 1:2, and the amount of flower buds is strictly controlled. Unbalanced forces of each backbone tree and branch group can be adjusted by preserving the difference in flower quantity. Stronger ones should stay more flowers, and weaker ones should stay less flowers. It should be noted that apple flowering often encounters low temperature, high wind and night frost damage, affecting normal pollination and fruit setting. It should be appropriate to leave more flower buds. After fruit setting, the fruit will be thinned. After trimming, apply the wound anti-corrosion film to the wound to make the wound heal quickly.
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Hematology analyzer is also called clinical blood cell analyzer, blood cell analyzer, blood cell analyzer, blood cell counter. The blood analyzer not only improves the accuracy of the experimental results, but also provides many experimental indicators, which play an important role in the diagnosis and differential diagnosis of diseases. Hematology analyzer is one of the most widely used instruments in hospital clinical testing.
Test items
Blood cell test refers to routine blood test, which is manual operation and counting under the microscope at first. It includes red blood cell, hemoglobin, white blood cell count and its classification, platelet count, etc. There are more than 20 items.
clinical significance
1. The blood analyzer is mainly used to detect various blood cell counts, white blood cell classification and hemoglobin content.
2. Hematocrit: obtained by multiplying the average volume of red blood cells by the red blood cell count.
3. Red blood cell distribution width: represents the degree of consistency of red blood cell size. When the red blood cell size is uneven, the red blood cell distribution width value increases, such as various types of nutritional deficiency anemia.
4. The three average indices of red blood cells are used to identify the type of anemia.
(1) The average hemoglobin content of red blood cells: increased in megaloblastic anemia, decreased in iron deficiency anemia, chronic blood loss anemia, uremia, chronic inflammation.
(2) Mean volume of red blood cells: increase in hemolytic anemia and megaloblastic anemia; decrease in severe iron deficiency anemia and hereditary spherocytosis.
(3) The average red blood cell hemoglobin concentration: decrease in chronic blood loss anemia, iron deficiency anemia; various diseases can be in the normal range. In megaloblastic anemia, the mean red blood cell volume increases, the mean red blood cell hemoglobin amount increases, the mean red blood cell hemoglobin concentration is normal, and the red blood cell distribution width increases.
5. Average platelet volume: the average volume of each platelet, the size of platelets is related to its function.
(1) Increased: seen in patients with idiopathic thrombocytopenic purpura, edema and proteinuria in late pregnancy.
(2) Decreased: seen in non-immune platelet destruction, aplastic anemia, thrombocytopenia repeated infection syndrome, chronic myeloid leukemia, etc.
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