What are the advantages and disadvantages of plant protection drone spraying?


My country is a traditional large agricultural country, engaged in agricultural plant protection operations every year, and the number of people poisoned by pesticides in our country is 100,000 people every year. At the same time, the labor force of young and middle-aged people in rural areas is gradually scarce, and the labor cost is increasing day by day; because pesticides are harmful to the human body, young people are unwilling to spray pesticides. The plant protection drone can be operated remotely from a distance, avoiding the risk of spraying workers being exposed to pesticides and ensuring the safety of spraying operations. So, what are the advantages and disadvantages of plant protection drone spraying pesticides? Today, the MANHOPE editor will lead you to understand!

Advantages of plant protection drone spraying:

a. Water saving: When used on large fields, the water consumption of drone spraying medicine is about 1/40 of that of traditional sprayers. Traditional sprayers spray medicine with 2-3 barrels of water per mu of land, about 40 liters. Take a 10-liter six-rotor drone as an example , Adding 10 liters of water per sortie can spray 8-10 mu of land, and 1 liter of water per mu of land is enough. The application of drone flight defense technology has greatly saved the amount of agricultural water used.

b. Saving pesticides: At present, in our actual field tests of pesticides, the experimental data show that under the premise of the control effect in most scenarios (prevention of insect pests, leaf diseases, etc.), the use of pesticides can be saved by about 30%.

c. Labor saving: Under the traditional spraying mode of Datian, it is not bad for ordinary people to be able to pump about 20 barrels of water and 10 mu of land in one day. For UAV flight defense, it only takes 10 minutes to spray 8-10 mu of land with 10 liters of water. In addition to the average time of ground handling, dispensing and transition, a crew of 3 people can spray more than 200 mu of land in a day. Calculated to be more than 70 mu/person/day. With the help of drones, the efficiency of field spraying operations has increased by nearly 7-8 times.

d. Does it save money? The rented plant protection drone is calculated based on 8 yuan/mu for the field, and 10 mu per day for the traditional spraying of medicines. The common people spent 80 yuan for the cost of spraying medicines per day and saved the labor of 1 person and 1 day. If the saved labor can be used If you engage in other part-time jobs and earn more than 80 yuan/day/person, ordinary people will save money.

Disadvantages of plant protection drone spraying:

a. Small water consumption leads to limited use in individual scenes: using drones to prevent pests and diseases, the effect is still acceptable. However, when it comes to prevention and control after a serious occurrence, the use of drones is limited in some scenarios. Under normal circumstances, try to use drones to prevent pests and diseases, which is relatively suitable for large planters with experience in prevention and control or local organized unified defense and rule.

b. When dispensing the medicine, the concentration of the medicine is too high, resulting in the risk of phytotoxicity: the selectivity of the drone to spray the medicine is very high, try not to use the pesticides with safety risks, such as: azoxystrobin, hexaconazole, propane azoles, chlorfenapyr, hexaflumuron, etc.

c. When dispensing medicines, mixing multiple medicines at high concentrations may cause instability of the medicines. For example, when spraying fruit trees, in addition to adding commonly used protective fungicides and preventive fungicides, it may be necessary to add various agents such as borer, red spider, aphid, and leaf fertilizer at the same time. The dosage form of each pesticide is different, such as wettable powder, water dispersible granule, aqueous solution, suspension concentrate, emulsifiable concentrate, etc., which will affect the chemical and physical stability of the drug after dispensing.

What are the factors that affect the effect of drone spraying?

a. Auxiliaries: The pesticides sprayed by aircraft need to be distinguished from conventional pesticides, and when using drones to spray pesticides, special anti-flying additives need to be added, which has a great impact on the control effect. The problems solved by anti-flying additives are: anti-drift, promote sedimentation, anti-volatility, increase efficacy, etc.

b. Dispensing sequence: add multiple agents at the same time to prevent and control different pests and diseases. Different preparations have different particle sizes. If the dispensing sequence is wrong, it will affect the stability of the molecular structure between the compounds, resulting in precipitation, crystallization, delamination, flocs, etc. . After many experiments and tests, the ideal dispensing sequence is as follows: foliar fertilizer, wettable powder, water dispersible granule, dry suspension concentrate, oil suspension concentrate, suspension concentrate, microemulsion, water emulsion, water formulation, emulsifiable concentrate, fly Anti-auxiliary.

c. Pilot's operation: The control effect of drone spraying is greatly affected by the pilot's operation level. Different crops need to set different parameters: flight speed, flight height, and whether there is leakage, commonly used dots and Draw flight maps, etc.

Suzhou Minghao Agricultural Machinery Co., Ltd. mainly produces agricultural machinery such as plant protection drones, cleaning drones, etc. Please pay attention to MAHOPE's website (//www.manhope.com/), and let's learn more about plant protection drones.