First, according to the different chlorine tolerance of crops. According to the tolerance of crops to chlorine, the crops are divided into three categories: one is strong chlorine-tolerant crops, such as rice, cotton, barley, sorghum, etc.; spinach, pumpkin, kidney beans in vegetables; kiwi, hawthorn, peach tree in fruit trees, Bananas; second, chlorine-tolerant crops such as corn, wheat, peanuts, soybeans, and rapeseed; and third, crops that are poorly resistant to chlorine, such as sweet potatoes, potatoes, watermelons, tobacco, tea trees, and lettuce in vegetables. Chlorine-containing fertilizers should be applied first to strong chlorine-tolerant crops, and secondly to chlorine-tolerant crops. Crops with poor chlorine tolerance should not be applied to avoid "chlorine damage", reduce yield and affect quality.
Second, choose the soil that is suitable for application. The chlorinated fertilizer should be applied to a neutral or calcareous soil with a pH > 6.5 and rich calcium. If applied in acidic soil, it is advisable to first apply lime or other alkaline fertilizer. After application, the soil is mixed and covered with deep application of chlorinated fertilizer. In rainy areas or rainy seasons, the application of chloride-containing fertilizers, chloride ions can be lost with water, not easily absorbed by the soil to cause crop chlorine damage, in areas with large rainfall and rice production areas, suitable for the application of chloride-containing fertilizer. In saline-alkali soils, chlorinated fertilizers should be banned due to high chloride ion content.
Third, as a compound fertilizer application. Rational application of nitrogen, phosphorus and potassium fertilizers can not only exert the interaction between nutrients, but also improve some undesirable properties of single fertilizer before mixing. Practice has shown that the application of potassium chloride, ammonium chloride and urea, ammonium phosphate and calcium to form a binary or ternary compound fertilizer can alleviate the harm of chloride ion and the undesirable characteristics of moisture absorption and agglomeration, and the combination of nitrogen, phosphorus and potassium Application can play a role in complementing each other.
Fourth, master the application method and dosage. Containing chlorinated fertilizer can be used as base fertilizer or top dressing, but according to the water solubility of chloride ion, it should not be used as seed fertilizer or top layer fertilizer. When chloride ions are in contact with water, water-soluble chlorinated fertilizer is formed, which increases the concentration of aqueous solution, which is unfavorable for crop seed germination and seedling growth, so it is not suitable for direct contact with crop seeds and seedlings. The base fertilizer should be applied 4-6 cm below the soil surface, or applied to the crop line to avoid contact with seeds and seedling roots. The application of dryland crops can be carried out by means of application and timely tillage after application. The suitable application rate of chlorinated fertilizer is preferably less than 200 mg/kg of chlorine concentration, 30-40 kg of potassium chloride, 20-40 kg of ammonium chloride and 40-50 kg of potassium chloride compound fertilizer.
5. Cooperate with organic fertilizer and phosphate fertilizer. At the same time of applying the chlorinated fertilizer, the application of the organic fertilizer can not only improve the fertilizer effect of the chlorinated fertilizer, but also reduce the adverse effects of chlorine. According to the antagonism of chlorine and phosphorus ions, the appropriate application of phosphate fertilizer can utilize the antagonism of chlorine and phosphorus ions to reduce the toxicity of chlorine, thereby achieving the purpose of safe application. In soils with strong acidity (pH below 5), the application of magnesium phosphate fertilizer (lime or grass ash) can be applied once every 1-2 years, and the fertilizer effect of chlorinated fertilizer can be exerted. However, it should be noted that the above fertilizers should not be mixed directly.
LED Sensor Batten Lights has options of microwave sensor and infrared sensor. There are two sensing modes. One is 0-10v dimming, and the other is on/off.
The main difference between these two modes is that the 0-10v dimming mode can set the brightness of the light after the person walks, and the pending time of this brightness can also be set. On/off mode, you can only set the time for the lights to turn off after a person walks, but not the brightness (that is, functions 3, 4 cannot be implemented). The 0-10v dimming mode is more intelligent.
Briefly introduce the function of sensor light:
1. Set up daylight threshold: If the ambient light is higher than the set brightness, the sensing function will not be triggered.
2. Set up the hold time: The time for the light to maintain brightness after the person walks away.
3. Set up a stand-by dim level: set the brightness maintained after the person walks
4. Set up stand-by time: After the person walks, the time to maintain low brightness
5. Set up detection area: Set the detection area.
Toggle button can set the remote distance of remote control and sensor.
If you need sensor lights in factories or warehouses, corridors, or other indoors, you can choose this LED Sensor batten lights. If you need IP66 sensor light, you can choose Sensor Waterproof Light.
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SHENZHEN LITEHOME OPTOELECTRONIC TECHNOLOGY CO., LTD. , https://www.litehomelight.com