Allowing farmers to master the scientific method of application

Application techniques to carry out extensive training , so that farmers master the scientific method of application

Adopted a hydraulic sprayer atomization , high pressure liquid through a small orifice in the rear , to go through more than 30 cm distance to be able to completely atomized , so when spraying pesticides , must maintain the distance between the nozzle and the crop

30 cm above the surface to avoid the backpack pressure sprayer nozzle close to the crop . When using spray nozzle cone fog job, should be changed about the direction of advancement of bilateral "Z" shaped cross spray habit while taking downwind side "Z" shaped spray application personnel to ensure that the area where no drugs area. At the same time , should be gradually replaced with a fan nozzle cone fog mist nozzles, spray take unilateral parallel advance method to improve the uniformity of the distribution of pesticides . Sprayer takes the pneumatic atomization , the farther away from the nozzle , droplet finer spray rate in the general level of more than 8 meters . Spraying pesticides , to take full advantage of its effective spray rate , spray taking drift superposition method to improve the efficiency and control efficiency , avoid targeted spray. Operations, shall determine the nozzle pointing direction ( spit ) , machine hand to the routes ( strike ) and field operations in the order ( starting from ) principle, so spit as consistent as possible with the wind , and wind machine hand to be vertical , if skewed, machine hand can be adapted to their body slightly oblique , not wind operations. From downwind start operations to ensure work area is free of pesticides zone. According to the control object and crop pests and diseases at different growth stages as well as parts of flexibility nozzle height and angle . Currently, the majority of farmers commonly used around the forward direction intersecting pressure sprayer spray method , spray width is reduced , the formation of turbulence , resulting droplet distribution is uneven, but the entire operating environment filled with pesticides are very vulnerable to pesticide poisoning people , should be changed as soon as possible and avoid .