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In the spring, when the cold and warm air flow meet each other, a sudden drop in the outside temperature often causes “dew condensation†on the surface of the seed heap. That is, the surface of the seed is very moist, and many vapors are absorbed, gradually congealing into tiny droplets. Seed condensation often leads to fever, mildew, and loss of seed. Therefore, when the cold wave arrives, warehouse doors and windows should be sealed to prevent a sudden drop in temperature inside the warehouse.
Kill pests
In spring, the temperature gradually warms, and various pests begin to move, threatening the safe storage of seeds. Therefore, insecticide lines should be sprinkled with pesticides around the warehouse to reduce pests invading the warehouse. In addition, the stored seeds must also be inspected frequently. During the inspection, the sampling method shall be adopted for the sampling of the designated area. That is to say, the seed heap shall be divided into three layers of upper, middle and lower layers. Each layer shall be provided with 5 points. A total of 15 points shall be sampled, and then the diameter shall be approximately 30. A small hand of centimeters sifted through the screen, and the pest density (number of heads/kg) was generally calculated after 3-5 minutes. Most of the beetle pests have a pseudo-dead nature. They can be caught out of the beetle and placed in the palm of your hand or you can breathe a little more heat. The pests will crawl. Once signs of hazards are found, they should be immediately treated with exposure, freezing, sifting or chemical fumigation.
Anti-return
The spring weather gradually warms up and the ground begins to thaw and return to the tide. Seeds near the ground, walls, columns, etc., tend to absorb moisture and cause mildew and mildew in the seeds. In general, isolation measures should be taken to raise the seeds up to about 50 cm with planks, etc. The distance between the seeds and walls, columns, etc. should also be kept at a distance of 50 cm or more to prevent the seeds from absorbing moisture. The moisture content of the seeds should be checked regularly. If problems are found, measures such as ventilation and drying should be taken.
Emulsions are one of the most commonly used formulations in cosmetics, ranging from thin fluids to thick creams. Therefore, the selection of emulsifier for emulsion cosmetics is of great significance to the research, production, preservation and use of cosmetics.
The function of emulsifier in skin care products is really too important. Without emulsifier, most formulas cannot exist, and many active ingredients cannot be added to the formula.
In skin care products, emulsifier has two main functions: emulsifying and dispersing oil and active ingredients in the formula, providing special skin sensation and rheological characteristics.
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