How to improve the utilization of pesticides

Want to improve the utilization of pesticides, it is necessary to improve the quality of the manual spraying machine, spraying parts single change the status quo, to promote the upgrading of manual sprayers

Spray atomization quality is the determining factor, directly affect the deposition of pesticide on crops distribution. Droplet distribution density is related to the control effect is an important factor. The same amount of liquid, if the droplet size by half, and the resulting 8-fold increase the number of droplets. Led the establishment of the National Agricultural Center in Shandong Wish Plant Protection Machinery Co., development and production of the "Guardian" card WS-16 Type Sprayer, won the national key new product certificate and four patents, and has been the first to get "3C" certification, becoming the ideal replacement of manual sprayers varieties.

The implementation of low volume spraying technology to reduce the amount of liquid present Mushi

Crop leaf surface can be attached pesticide droplets is limited, when spray volume exceeds a certain limit, the leaves on the tiny droplets will agglomerate into large droplets and rolled, the loss, but to make the blade attached to the drastically reduced the amount of pesticides . Spray volume in developed countries are generally controlled at 100 per hectare - 300 l range, less spray volume per unit area of ​​1/3, and thus the loss was minimal, pesticide utilization is higher.

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 spray 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 household sprayer 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 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.