Application in greenhouse vegetables can promote photosynthesis to enhance plant stress resistance and improve the adaptability of seedlings to low temperature, high temperature, low light and other adverse environments, thereby promoting high quality, early maturity and increased yield. For example, the application of rare earth micro-fertilizer in tomatoes can increase plant height, increase leaf speed, increase leaves, flowering period 3-5 days, increase the number of fruit per plant by 2-20, and increase the sugar content of fruit by 10%-20%. Early maturity 5-7 days. The application of rare earth micro-fertilizer on cucumber can generally increase the previous production by more than 40% and the total output by 20%.
In fruit trees, rare earth micro-fertilizer can stimulate plant growth, promote rooting and root elongation of cutting seedlings, and enhance root activity, thereby increasing the fruit setting rate and increasing yield. For example, the application of rare earth micro-fertilizer on grapes can improve the quality of grapes, effectively reduce the size of the grain, increase the fruit set rate, increase the vitamin content of the fruit and optimize the ratio of acid to sweetness, and promote precocity.
Rare earth micro-fertilizer is a new type of plant nutrition and regulator. However, it should not be applied excessively in greenhouse vegetables, and the application method should be scientific. The correct method of application is:
1. When using as a base fertilizer, strictly follow the methods and dosages recommended in the book.
2. Seed dressing: first dissolve 1-2 grams of rare earth micro-fertilizer in 1.5 kilograms of water, then spray it on the cucumber seeds with a sprayer or a small watering can, mix while spraying, and dry and sow.
3. Foliar spraying: 10 grams of rare earth micro-fertilizer per acre of greenhouse, mixed with water to a concentration of 0.03%-0.06% solution, first sprayed at the initial flowering stage, then sprayed again about 20 days later. The specific spraying concentration should be determined according to the content of the active ingredient of the product. Please refer to the product manual before use to avoid damage to the crop caused by improper use.
Valves are found in virtually every industrial process, including water and sewage processing, mining, power generation, processing of oil, gas and petroleum, food manufacturing, chemical and plastic manufacturing and many other fields.
People in developed nations use valves in their daily lives, including plumbing valves, such as taps for tap water, gas control valves on cookers, small valves fitted to washing machines and dishwashers, safety devices fitted to hot water systems, and poppet valves in car engines.
In nature there are valves, for example one-way valves in veins controlling the blood circulation, and heart valves controlling the flow of blood in the chambers of the heart and maintaining the correct pumping action.
Valves may be operated manually, either by a handle, lever, pedal or wheel. Valves may also be automatic, driven by changes in pressure, temperature, or flow. These changes may act upon a diaphragm or a piston which in turn activates the valve, examples of this type of valve found commonly are safety valves fitted to hot water systems or boilers.
More complex control systems using valves requiring automatic control based on an external input (i.e., regulating flow through a pipe to a changing set point) require an actuator. An actuator will stroke the valve depending on its input and set-up, allowing the valve to be positioned accurately, and allowing control over a variety of requirements.
Stop Valves, Ball Cock, Angle Valves, Gate Valves, Check Valves
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