The plant protection and defense industry has been in full swing in the fifth year. In order to make the industry healthy, reduce unnecessary losses and increase the income of the plant protection team, Yu Yu will share his experience with many years to share with you.

Flight skill

When there are obstacles such as telephone poles, cable-stayed wires, wires, and telephone lines in the working block, first observe whether the poles and pull wires are regular or whether the diagonal cable, wires, and telephone lines are in the forward direction. If it is in the forward direction It is recommended to manually operate the obstacle block outside the 3m operation for cleaning, and the flight direction is the forward direction of the obstacle. The reason for this is that the spray width of the plant protection drone is generally 1 meter on both sides of the pitch. Left and right, it can ensure the safe distance between the plant protection drone operation and obstacles, and the forward flight will not cross-judgment with obstacles, and it can guarantee that it will not leak. Secondly, when the energy is sufficient, clearing the obstacle block will minimize the mistakes, and the working light environment is relatively good. The remaining obstacle-free blocks are also safer to use autonomous flight, and the work efficiency will be greatly improved. When there are trees in the middle of the plot, it is necessary to first clean up the barrier plots in a way that is conducive to the independent operation of the remaining plots. The skill of this job is that the wire is not caught when it meets the wire.

Hilly land, mountain work skills, mountain work is the most effective test of the overall situation. The skill of selecting control points in mountain work directly determines the level of work efficiency. The efficiency of selecting control points can even be increased several times because of mountain work. Generally, it is necessary to build an observation platform to ensure the safety of the operation. The time for constructing an observation platform in the mountain transfer is generally not less than 90 minutes. It takes less than a few half days to build it. Therefore, it is important to observe the terrain in advance. Mountain operations range from high to low, making it extremely easy to cause a bomber. The reason is that the plant protection drone is integrated with the crop from high to low, and the height difference between the plant protection drone and the crop cannot be observed. From low to high, the plant protection drone and crop are clearly distinguished from the sky. The height distance between them.

Vegetables, melons and other economic crops work skills, many vegetables even if they are similar, there are different characteristics of different varieties, some varieties of stems are flexible, some varieties of stems are brittle, flying height control is not good will hurt Crops lead to reduced production or production, and some of the volcanic fruits will affect the yield due to the large turbulence of the downwind field, and the seedling crops should pay more attention to controlling the flying height. For example, lentils, non-gluten beans, seedling melons, seedlings, two pounds of peppers, flue-cured tobacco, etc. should pay attention to choose different flying heights and absolutely prohibit hovering over the above crops.

According to the repeated tests on various types of plant protection drones, it is confirmed that the optimal operation speed of the plant protection drone is between 4 and 5 meters. In this flight speed range, the cooperation between the wind farm and the liquid medicine of the plant protection drone is the most. Ok, exceeding or falling below this speed will result in poor work. If the flow rate of the liquid cannot meet the operation requirements, it is recommended to use two cross-over operations to meet the dosage of the liquid. This method is more suitable for fruit trees and the crops are more evenly coated.

Medication skills

In the flight defense operation, the influence of pesticides and medication techniques on the operation effect is the largest. If the medication is inadvertent, it may even cause the production of pesticides to reduce production and production. Therefore, mastering the common sense of plant protection is crucial for improving the operation effect and eliminating quality accidents. The role.

1. Sensitive pesticides: Antiviral and bactericidal pesticides are prone to cause phytotoxicity during high-concentration application. For example, tebuconazole, imidate, etc., insecticide-based pesticides are also known to cause damage. Such pesticides are absolutely prohibited from being used according to the conventional dosage. It is recommended to use 20-30% of the conventional dosage reduction.

2, sensitive crops; melons and vegetables crops are sensitive to high-concentration drugs at the seedling stage, it is recommended to carry out large-area operations after a small area trial in advance; in addition, cowpea has been repeatedly medicated in flying defense operations, which is a high-risk crop, it is recommended Use medication with caution.

3. For pests with higher breeding iteration rate, it is necessary to adjust the medication plan according to the operation cycle, and it is not possible to use a formula to fight the world. For example, the wheat aphid flying defense operation generally adjusts the medication plan in the prevention period for three to five days. In May 2017, there was a reason for the poor control effect of wheat aphids in North China.

4, the use of wettable powder skills; drone fly defense operations are most afraid of wettable powder, in fact, as long as the method is appropriate, the wettable powder is not so terrible. Firstly, avoid mixing the wettable powder with the emulsifiable preparation, because the mixing of the emulsifiable preparation with the wettable powder may cause the viscosity of the liquid to be high or difficult to dissolve, increase the working pressure of the pump and block the nozzle phenomenon, regardless of the pressure nozzle or the centrifugal nozzle. The nozzles have a great influence. For pressure nozzles, it is much better to choose a well-known brand enterprise. The European and American brands are preferred. In this case, it can be directly formulated and applied. If other brands can put the dry powder in the medicine box filter, it can be compared smoothly. Leakage in the filter, if you can, you can also use it with confidence, otherwise it is recommended that customers choose to replace the drug.

5, the preparation of flying anti-drug must be done to a second dilution, otherwise it will easily lead to chemical reaction between the original drug caused by poor efficacy or crystallization, and even produce phytotoxicity. First, dilute each pesticide 5 to 10 times, then mix it with water to an appropriate amount, and mix it evenly.

Spraying technique

In general, the contact-killing insecticide has a higher density of fogging, and the better the insecticidal effect, that is, the diameter of the droplet is smaller, about 80-100 microns; the coverage of the aerosol of the system is larger. The effect is better, that is, the diameter of the droplet is preferably about 120-150 microns. The pressure nozzle adjusts the droplet method by replacing the nozzle corresponding to the nozzle aperture, and the centrifugal nozzle can adjust the droplet diameter through the flight control software.

Develop work plans based on different habit characteristics of pests

Generally, the control time of pests in conventional field crops can be freely selected according to the operation cycle, and the economic crops have higher economic value and more attention to the control effect. It is recommended that customers can control different pests and diseases in different time periods, which may increase operating costs. However, it will greatly improve the control effect, but will save the overall cost. We have used this method to achieve very good results in the process of preventing and killing thrips at night, and the prevention rate has even reached 98%.

With the advancement of science and technology, whether it is plant protection drone flight control technology, precision spray technology, or pesticide technology, there will be a lot of room for development. These experiences may gradually fall behind, but at present, it is guaranteed that the peers will not eat big. Loss, and get a good return while paying hard work and sweat.