The amount of scientific eggplant needs a large amount of nitrogen fertilizer during the fruiting period, but in high temperature weather conditions, the "small number of times" fertilization method should be adopted. Under high temperature conditions, the conversion speed of urea after being applied to the soil is relatively fast, and the excess will be lost after the plant meets the needs. Generally, the topdressing is applied once every 7 days, 10-15 kg of urea per acre, or 10-15 kg of dragon light. Excessive application rate, in addition to causing nutrient loss, will also cause ammonia damage to eggplant leaves and fruits.
Methods It is necessary to scientifically many vegetable farmers have the habit of applying water, but this method should not be used under high temperature conditions. Because of the higher temperature, nitrogen fertilizers, especially ammonium bicarbonate, are easily decomposed and volatilized, and the ammonia produced by decomposition not only reduces the fertilizer efficiency, but also easily causes eggplant ammonia poisoning. Therefore, when applying urea, ammonium bicarbonate, ammonium sulfate and other fertilizers, it is necessary to adopt a ditch or a hole application method. The depth is not less than 5 cm, in order to reduce the volatilization of the active ingredients of the fertilizer, watering in time after topdressing.
Formulation of fertilization Although eggplant requires a large amount of nitrogen fertilizer, phosphorus and potassium fertilizers are also indispensable. In the topdressing, it is not possible to apply nitrogen fertilizer every time. In the fruit-bearing period, it is necessary to apply phosphorus and potassium fertilizer 2 to 3 times, preferably with ternary compound fertilizer. It can also be diluted with 300-500 times of water by using the dragon-light true root with true nail-flushing drip irrigation to meet the growth of eggplant. The need for the results can also play a role in improving the quality of the solanaceous fruit.
What are the advantages of aluminum profile for cabinet and Shop Window Aluminium Frame
1. Waterproof
The aluminum profile of the cabinet door is made of aluminum alloy frame inlaid with crystal steel plate. The aluminum alloy profile, ABS plastic parts and crystal steel plate are bubble resistant materials. Therefore, the aluminum profile of the cabinet door provides 50 years of waterproof guarantee, which can be directly washed and soaked with water.
2. Fire prevention
The aluminum profile of cabinet door has strong heat resistance. The test shows that it can withstand the temperature difference of 200 ℃ without damage. Even if the whole piece is placed on it after being ignited, its surface will not be damaged after burning for a long time, which overcomes the disadvantage that ordinary plates can not stand burning.
3. Insect and ant prevention
The aluminum profile of the cabinet door is extremely hard, and even termites have nothing to do.
4. Impact resistance
The aluminum profile of cabinet door has strong impact resistance. The experiment shows that it can withstand the test of 227g steel ball falling from 3m without damage, and the bending strength is 150MPa.
5. Wear resistance
The surface of aluminum profile of cabinet door is not damaged by knife cutting. It can be used under normal conditions for 50 years.
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