Dehydration-type fertilizer is mainly caused by excessive application of chemical fertilizer at one time, or insufficient soil moisture, and the concentration of fertilizer solution in the soil is too large after fertilization, causing reverse osmosis of water in crop cells, resulting in dehydration of crops. Fertilized plants show wilting, like frost or boiling water. Lightness affects growth and development, and heavy plants die.
The smog-type fertilizer is mainly applied with ammonia, bicarbonate and other fertilizers. Such fertilizers are applied at high temperatures, which are prone to produce a large amount of ammonia gas, causing damage to crops, and lighter yellowing of the lower tip, affecting growth and development. The heavy ones caused the whole plant to die.
Burning seed type fertilizer application too much amount of fertilizer, or use superphosphate, or alkaline volatile ammonium bicarbonate and urea, lime nitrogen and other chemical fertilizers, often burning, resulting in lack of seedlings. In addition, when foliar fertilization is applied, the concentration used is too large, which may cause leaf burns.
Toxic fertilizers Some fertilizers such as lime nitrogen are toxic fertilizers. After being applied to the soil, they must undergo a series of transformations before they can be absorbed by plants. However, during the conversion process, some toxic substances will be produced to poison crops and cause them to be killed or killed. Therefore, the application amount should be strictly controlled when applying fertilizer, and the fertilizer should be used safely and rationally.
Huaxian Liu Huimin
LED Underground Lamp is a new type of buried decoration lamp with high brightness LED as the light source and LED constant current drive as the driving mode.Widely used in square, park, leisure places, such as outdoor lighting, outdoor as well as park, square, garden greening, lawn, flower beds, pedestrian street, waterfalls, fountains, water etc illumination, add luster for life.
Product size
Technical parameters
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Main material |
High - pressure cast aluminum, 92% high - light steel screen printing glass |
The light colored temperature |
Red/Green/Yellow/Amber/Vermilion/Acid blue/3000K/4000K/5000K/6000K
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Surface treatment |
UV Polyester powder coating |
Light distribution device |
Reflector lamp cup series:6° Optical lens series:8°/15°/25°/45°/10×30°/10×60°/20×40° |
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The light body color |
Dark grey |
Working voltage |
DC24V |
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Safeguard procedures |
Silica gel ring compacted waterproof |
way to install |
Embedded part |
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Average lifetime |
350mA20000hours,500mA15000hours |
rated power |
/ |
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Control mode |
/ |
Level of protection |
IP65 |
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operating ambient temperature |
-25℃~50℃ |
Working environment humidity |
10%~90% |
Led Underground Lamp ,Led Underground Headlamp,Led Cap Lamp Underground Mining,Underground Led Cap Lamps
Jiangsu chengxu Electric Group Co., Ltd , https://www.chengxulightings.com