National Flying Anti-Violation, Hunan, Hunan, released the results of rice flight prevention and control

[ China Agricultural Machinery Industry News ] National flight defense to see Hunan. Hunan is not only the forefront of the specialization of pests and diseases, but also the courage to explore in the promotion and application of plant protection drones. Since 4 years ago, the Hunan Provincial Crop Disease and Insect Specialized Prevention Association and the Hunan Zhonghangfei Agricultural Machinery Professional Cooperative have started multi-site experiments and applications for plant protection drones. 44 pesticides have been used in 11 rice varieties before and after. A variety of pesticides and plant protection drones provided by enterprises, 5 auxiliary enterprises and 19 plant protection drone manufacturers have accumulated a large amount of first-hand operation data, and explored the successful experience of rice to achieve full flight defense.

National Flying Anti-Violation, Hunan, Hunan, released the results of rice flight prevention and control

Recently, the Hunan Provincial Crop Disease and Insect Specialized Prevention Association and the Hunan Provincial Crop Disease and Pest Specialized Anti-ruling Service Alliance held the “National Plant Protection and Flight Prevention Experience Exchange Meeting” in Changsha to share the whole process of rice flight defense with the industry. Practice knows the truth, these experiences in the field to explore and explore, it is worthwhile to carry out the reference and reference of flying defense operations.

50% reduction in single-acre application of pesticides

Liu Jie, secretary general of the Hunan Provincial Crop Pest and Disease Prevention and Control Association, introduced at the meeting that by using three-dimensional anti-control technology and plant-protected drones and other advanced medical equipment, pesticides can be released and timely, so that the single-mu dosage of pesticides can be reduced by about 50%. . Specifically, how to do it, Liu Jie told reporters carefully.

“About 50% of pesticides is related to traditional conventional spray equipment. We actually observed in the field that because the muddy feet are deep and difficult to walk, it often causes the sprayer water that should have been sprayed on one acre to only spray seven. Eight points, means to use more than 20% ~ 30% of the liquid, especially when using herbicides, it is easy to produce phytotoxicity." Liu Jie said that the plant protection drone can achieve uniform coverage of the liquid through the release, greatly Reducing human error, some enterprises' plant protection drones can automatically adjust the spraying dose according to the flight speed, fast flying and multi-spraying, slow flying and less spraying, no flying or not spraying, 100 mu field error can achieve only 10 ml of liquid medicine. Through four years of field application, the association team can achieve timely drug use, combined with spray equipment, compared with traditional application equipment (electric sprayer), it can still be better when the dosage of mu is reduced by 20%~30%. Control effect. In general, the application of artificial paddy field in the invisible use of 20% ~ 30% of the amount of drugs, the overall reduction of the amount of drug used in the mu is nearly 50%. Therefore, the application of the application machine has a great significance for the reduction of pesticides.

Liu Jie stressed that the reason for the significant reduction in the amount of medication and the cost of medication is not just the use of plant protection drones, but more importantly, based on rice varieties, the occurrence of pests and diseases, the growth of crops and the weather conditions before and after application. In combination with pesticide medicinal properties, including pesticide varieties, drug resistance, rotational drug use strategies, and auxiliaries selection, a plant protection management plan for the whole growth period is formulated.

"This stereoscopic control technology is different from the traditional passive control technology for insecticide and disease treatment. It is a comprehensive, scientific and complete active prevention and control program, including soaking seeds, seed dressing, closed weeding, stems and leaves. Weeding, comprehensive prevention and control of segmental pests and diseases during crop growth, and mixed crop nutrition and so on. Through active prevention and control, pests and diseases are continuously suppressed within a controllable range. Just like infants and young children, it is a reason to reduce vaccination and outbreaks. Appeared to reduce the total growth period of rice by 1~2 times," Liu Jie said.