Accurate application of useful pesticides can be controlled.

Original title: target is more accurate and drift can be controlled.

"School, Enterprise and Government" jointly explore the precise application technology of reducing quantity and increasing efficiency.

① students of China Agricultural University carried out pesticide collection in the air at the test site.

The ② experimenter inspects the precision test equipment for pesticide application.

The staff of ③ plant protection station in Linyi City carried out on-site environmental monitoring.

Recently, China Agricultural University and Linyi Plant Protection Station jointly carried out a test of reducing and increasing efficiency and precision pesticide application in Taiping Town, Linyi City, Shandong Province. China Agricultural University is responsible for pesticide application technology, Linyi Plant Protection Station is responsible for crop pest monitoring and pesticide selection, Shandong Yongjia Power Co., Ltd. is responsible for providing efficient and accurate self-propelled spray rod sprayer equipment, "school enterprise administration" jointly promote agronomic integration of agricultural machinery, and explore a systematic accurate pesticide application technology scheme: that is, to select green and low toxic agents in the best period of prevention and control. Through the use of precise pesticide application technology and high-efficiency plant protection machinery, the ideal control effect was achieved.

The action of zero growth of pesticide use requires reducing quantity and increasing efficiency, not only to reduce the use of pesticides, but also to improve the effect of control, which is inseparable from the application of accurate pesticide application technology and efficient plant protection machinery. Shandong Yongjia Power Co., Ltd., as the main unit of the National Agricultural self-propelled Plant Protection Machinery Science and Technology Innovation Alliance, actively undertakes the task of guiding farmers to scientifically use plant protection machinery and control methods and technologies. "Plant protection machinery, as a special agricultural machinery, is not the same as ordinary agricultural machinery. It is not that the greater the horsepower, the better, the wider the spray, the better, and the more fog, the better. In addition to being able to walk, it is more important that a qualified plant protection machine can use drugs accurately and has a good control effect. " Qi Peng, director of the company's precision application laboratory, said.

With the continuous improvement of people's awareness of protecting the ecological environment, the research on pesticide use technology and pesticide application equipment is faced with two major issues: how to improve the use efficiency and effective utilization rate of pesticides; how to avoid or reduce the impact of pesticides on non-target organisms and environmental pollution. At present, China's pesticide application equipment and technology are still relatively backward, and the effective utilization rate of pesticides is only 36.6%. Most of the pesticides are lost to the soil and the environment, which not only wastes the liquid, but also seriously pollutes the environment. Therefore, improving the spray performance of the sprinkler, especially the spray uniformity, is of great practical significance to optimize the application technology of agrochemicals, control the drift of harmful substances, improve the effective utilization rate of pesticides, reduce environmental pollution and make effective use of water resources.

There are many reasons for poor spray uniformity, such as spray pressure conditions, nozzle spacing, nozzle height, nozzle characteristics, working environment, working conditions and many other factors, and the factors affecting spray quality are also complex. In the process of pesticide spraying, some pesticide droplets will be carried by the airflow to the non-target area and cause drift. With the increase of the amount of pesticides, the problems such as animal and plant drug damage and environmental pollution caused by the loss of pesticides have become increasingly prominent. To carry out the test of pesticide droplet drift is of great significance to guide pesticide application methods, research and development of efficient pesticide application equipment, improve pesticide utilization efficiency, reduce the impact of pesticides on non-target organisms and environmental pressure. Pesticide drift is a complex problem, and there are many related factors that affect the droplet drift, such as liquid characteristics, application equipment and technology, meteorological factors, operator skills and so on. During the experiment, different application methods were used to test the pesticide deposition distribution uniformity, penetration, coverage and other data, and the pesticide drift data of different spray modes were tested.

Song Jianli, associate professor of China Agricultural University and secretary general of the Plant Protection Machinery and Pesticide Committee, said that this test is close to the actual combat, the method is scientific, rigorous and comprehensive, the organization and coordination is efficient, and the coordination is tight, giving full play to the advantages of various schools, realizing the combination of strong and strong forces, and advantageously promoting the action of zero growth in pesticide use. The performance of the test equipment provided by Shandong Yongjia Power Co., Ltd. is stable and can provide guidance for the scientific use of advanced, accurate and efficient plant protection machinery in the future.

This event is jointly sponsored by the National Agricultural self-propelled Plant Protection Machinery Science and Technology Innovation Alliance, the Professional Committee of Plant Protection Machinery and Pesticide Application Technology of China Pesticide Development and Application Association, China Agricultural University, Linyi Plant Protection Institute and Shandong Yongjia Power Co., Ltd. (written by Lu Yongjia / photo)