New technology improves pesticide use efficiency

Low-volume spray technology means that the application amount per unit area is constant, and the pesticide stock solution is slightly diluted, and the water consumption is equivalent to 1/5 to 1/10 of the conventional spray technique. Generally, the droplets of pesticides that can adhere to the surface of plant leaves are limited. When the amount of spray exceeds a certain limit, the fine droplets on the leaves will condense into large droplets, roll off and lose, and instead, the amount of pesticide attached to the leaves will be Drastically reduced. The amount of application liquid in developed countries is generally controlled in the range of 100 liters to 300 liters per hectare, less than 1/3 of the amount of application liquid per unit area in China, so the amount of loss is extremely small, and the utilization rate of pesticides is high. Low-volume spray technology can significantly improve work efficiency and is now widely used in greenhouse and mountain operations.

Electrostatic spray technology refers to the method of electrically spraying droplets through a high-voltage static electricity generating device, which can significantly increase the deposition amount of the liquid droplets on the surface of the blade, not only the front side of the blade, but also the opposite side of the blade and the hidden part of the plant. Can be used to increase the effective utilization of pesticides to 90%. This technology can be widely used in the prevention and control of pests and diseases in parks, green areas, nurseries and other places.

Pelletizing and applying technology For the water-soluble agent used in paddy fields, the pelletizing application technique can be adopted. The pellet can be evenly spread in the farmland, the working efficiency is increased by a factor of ten, and there is no pesticide drift. Contaminated adjacent crops.

The recirculating spray technology redesigns the conventional spray equipment. A drug recovery device is installed on the opposite side of the spray component, and the liquid medicine on the target plant that has not been deposited is collected and then pumped back to the liquid tank for recycling. Effective utilization of pesticides.

The medicine roller application technology is mainly used for the internal absorption of the herbicide, and the liquid medicine is exuded from the surface of the medicine roller through the medicine roller (a type of plaster overflow made of a foam material capable of absorbing the liquid medicine), and only needs to be contacted with the mist. The leaves on the top of the grass will work. This method can almost completely apply the agent to the surface of the target plant without causing the liquid to spill and drip.

Computer-controlled spray technology The computer control system is used in sprayers to determine the shape of the fruit tree by ultrasonic sensors. The computer control system automatically adjusts the pesticide spray characteristics according to the shape of the fruit tree. This technology can greatly improve the effective utilization of pesticides, and represents the direction of pesticide use technology, which is currently used in American orchards.
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