Longan promotes timely autumn tip technology

Longan is a kind of tropical fruit tree. Its excellent quality is the main fruit tree that our province vigorously develops. Because the fruit tree is rough and extensive, resulting in low yield, it is necessary to have a set of scientific management for longan yielding and stable production. How to draw autumn shoots timely is to ensure high yield. The important part of stable production. The longan has many fruits and can harvest, but the main reason for the lack of flowers is that the tipping period is not appropriate. The last shoot is often easy to germinate the winter shoots without flowering, and the shoots are not put off later because of autumn drought and temperature drop. The reason is that it is hard to get used to. Unfamiliar longan autumn shoots cannot produce flower buds due to insufficient organic nutrients stored. The following techniques can be used to promote ideal autumn shoots by drawing on comprehensive practical experience.

One, because of the place, due to variety. Due to the weather that year, it was decided to put autumn shoots.

It is generally suitable for germination from mid-September to mid-October, and mature at the end of December. The understanding of the fruit growers suggests that they should be released in September. Early release can be used to solve the winter shoots with early control. Early shoots are more likely to form flower bud differentiation, and there are also fruit growers. It is considered that the tipping of the tip of mid-to-late October is good, and it is believed that the winter is warm and difficult to suppress winter shoots. Each of these two methods has its own advantages.

Through understanding, it is believed that the longan shoots of Dendrobium nobilis can turn green early and the shoot stage can be delayed. However, the late-maturing Ooyuan species slowly turns green, and the last shoot should be advanced. In the winter cold years, the tipping should be advanced, and the wintering should be postponed. I have learned from many years of experience that the region should be postponed for the last time, which is suitable for the winter of the region.

Second, the re-application of quick-effect fertilizer: Shi slow absorption of organic fertilizer, such as chicken gizzards, pig buns, bean cakes, etc. must be applied timely after fruit picking, otherwise it will not be absorbed in time and induce smoking pumping. Short-term fertilizer application is insufficient, shoot is difficult to quickly hair, and the autumn shoots are not enough stout, the general strain can produce 30-60 kg or more can be applied 2-4 kg of urea, mixed with half a catty of potassium fertilizer, in the vertical canopy peripheral facilities It is better to use the ring groove for better application. After the drought, it will be applied to the tree strains. If no magnesium sulfate, zinc sulfate, or borax is applied in the year, it can be mixed into the quick-acting fertilizer and the fertilizer should be applied to the shooter. About 15 days before the shoot period.

Third, timely sparse shearing to promote the timely emergence of new shoots. Pruning should be done after fertilization. (1) Appropriately handle higher and denser branches in the middle of the canopy. Generally, 2-3 branches may be sawn off, which is conducive to better absorption of sunlight. (2) Properly remove mowed shoots, upward-producing shoots and less-leafed shoots, disease-disease branches, and over-closed branches. (3) When the fingers are 2-3 years old, only 2-3 shoots are left. (4) timely sparse. After the autumn shoots sprouted, the excess shoots should be erased as soon as possible, leaving only 1-2 buds on one shoot.

Fourth, in the drought, timely shower. In autumn in our province, there is always an autumn drought, soil moisture is insufficient after fertilization, fertilizer can not play a role in promoting the role of timely, therefore, in the case of long-term cultivation of longan in the mountains should not be a rain shower.

V. Eradicate pests and diseases. After the longan has sprouted, it is easy to be bred by the locusts, so that the new shoots stop growing and the flower buds cannot be formed. At the same time, there are also damages such as leaf rolling, ulnar warts and caterpillars. The buds germinate and spray pest control twice. At about 2-3 cm, when the red leaves are fully opened, spray with 40% dimethoate or trichlorfon 800-1000 times can be used. For example, the larvae of the calf should be injected into the hole.

Six, timely control tip. Delayed longan late autumn shoots and winter shoots for drug control. Available: Ethephon 20-30 ml + Paclobutrazol 50-100 g + Potassium dihydrogen phosphate 100 g + 50 kg water for spraying. Such as the shorter tree can be removed manually. The effect of the ethidium bismuth changes with temperature. When taking medication, the higher the temperature, the more intense the effect will be, and it will cause phytotoxicity. The ring cutting control tip, which is mainly aimed at the long-horned tree with strong tree vigor, can be cut in a circle in November and circumscribed in February and February a second time. In winter it can be combined with loose soil to control the winter shoots.

Through timely technical processing, we will be able to develop a robust and effective masterbatch in a better and more effective manner and lay a foundation for flowering and results next year.

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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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