At present, rape has been transferred to a critical stage of reproductive growth and vegetative growth. The recent high windy weather and rapid soil loss have adversely affected the growth of rape. The following management measures are now proposed for rapeseed production.
First, apply fertilizer scientifically. With the increase of temperature, the water consumption of rapeseed continues to increase. At this time, relative soil moisture content of 70% and air relative humidity of 70%-80% are most suitable for the growth of oilseed rape. Watering should be performed 1-2 times according to the soil moisture conditions, and the water should be used. Topdressing urea 10-15 kg.
Second, foliar fertilizer. Use 2% urea, 3% superphosphate, and 0.2% borax mixture to spray the foliar to improve the seed setting rate. Spray once every 7-10 days and spray 2-3 times.
Third, pest and disease control. The main pests in the middle and later stages of rapeseed include aphids, leaf miners, diamondback moth, and sclerotinia. Available 2.5% cyfluthrin 35 g plus 10% imidacloprid WP 20 g, 40% sclerotin net wettable powder or prochloraz 100 g, 30 kg of water spray pest control pests.
Fourth, prevent late spring. Pay close attention to the changes in the weather and suddenly reduce the temperature by spraying anti-freezing agents and irrigation to reduce the impact of late spring on rapeseed growth. After the occurrence of cold injury, the stems and branches of the frozen rape should be promptly removed, and carbendazim and mancozeb and other pesticides should be sprayed to prevent the occurrence of diseases.
Fifth, timely harvest. When the whole plant 2/3 pods appear pale yellow, that is, when the whole field is 80% mature, it will be harvested so as not to cause rift angle loss. After the harvest, it will be piled, and the oilseed rape will be fully cooked to increase the grain weight and oil content.
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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