Phosphorus is an important constituent of nucleotides, nucleoproteins, and phospholipids in cells. It is closely related to cell division, and is also an important component of enzymes and coenzymes. It is also responsible for photosynthesis, respiration, metabolism of carbohydrates and nitrides, and operation of sugar. There is an important relationship. Phosphorus is easy to move in plant tissues and is particularly abundant in young, metabolically rich tissues. Phosphorus deficiency has the greatest impact on young tissues. Phosphorus has a good promoting effect on the synthesis and operation of sugar. Tests have shown that application of phosphorus can increase the content of berry sugar, pigments and aromatic substances, reduce the acid content, and improve the quality of berries. Therefore, the application of phosphate fertilizer must be emphasized in table grapes and brewing grape cultivation. Symptoms: Symptoms of grape deficiencies are prominent: the leaves become smaller, the leaves are dark green and purple, the leaves are red and scorch, the inflorescences and ears are smaller, the fruit sugar content is reduced, and the fruit ripens are delayed. Control methods 1. Phosphate Fertilizer Sprayed on Leaves, Types of Ammonium Phosphate, Superphosphate, Potassium Phosphate, Potassium Dihydrogen Phosphate etc. Among them, ammonium phosphate and potassium dihydrogen phosphate are the best. The spray concentration is preferably 0.3-0.5%. The young fruit is sprayed every 7-10 days for a total of 3-4 times. 2. 20-40 kg of phosphate fertilizer per acre before flowering to promote inflorescence development and promote fruit set. 3. In the fruit coloring and shoot ripening period, in order to promote fruit coloring, increase the sugar content of the berries, and mature the shoots, 20-40 kg of phosphate fertilizer may be applied per acre, or 2-3 times of extra-root fertilizer may be applied after fruit enlargement. 4. After harvesting the fruit, it is necessary to re-apply the phosphate fertilizer when applying the basal fertilizer. Generally, 0.5-1 kg of calcium phosphate is applied to each mature tree, and it can be deeply applied to the inside of the tree tray or fertilization groove together with other organic fertilizers.
A Microscope is an instrument used to see objects that are too small to be seen by the naked eye. Microscopy is the science of investigating small objects and structures using such an instrument. Microscopic means invisible to the eye unless aided by a microscope.
There are many types of microscopes, and they may be grouped in different ways. One way is to describe the way the instruments interact with a sample to create images, either by sending a beam of light or electrons to a sample in its optical path, or by scanning across, and a short distance from the surface of a sample using a probe. The most common microscope (and the first to be invented) is the optical microscope, which uses light to pass through a sample to produce an image. Other major types of microscopes are the fluorescence microscope, the electron microscope (both the transmission electron microscope and the scanning electron microscope) and the various types of scanning probe microscopes.
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