When it comes to spraying pesticides , many farmers will feel that they have nothing to learn, because they have their own method of spraying pesticides in the common field operations, but many methods are unscientific, even It is unreasonable, Xiaobian needs to remind the majority of farmers friends, spraying pesticides and applying scientific methods.
First, the word "s" in front of the body swing spray. The disadvantage is that the front sprays, people in the sprayed environment, it is easy to cause pesticide poisoning. In addition, when spraying the closed herbicide, it is easy to spray unevenly, and the artificial film will destroy the film and reduce the control effect. The word "" in the front of the hand sprayer should be changed to the side "s" word swing. Motorized sprayers and hand sprayers should be sprayed sideways in parallel when spraying the herbicide.
Second, the fog spray. This spraying method can make the spray uneven, especially affecting the control effect of the contact insecticide . The mist spray is also easy to cause the loss of liquid medicine, and the waste is more serious when the plant is low. Sprayers with good atomization performance should be used as much as possible, and small holes should be used for even spray.
Third, direct "target" crops. Manual sprayers generally use direct spray, while motorized sprayers are mist type. Direct spray spray will greatly reduce work efficiency, and can not fully utilize the characteristics of motor sprayer atomization and high work efficiency. The correct method for motorized spray operations should be to apply a drift spray downwind 20 cm above the crop.
4. The sprayed liquid drops from the leaves. According to the scientific measurement, if the liquid on the leaf is lost to the ground, the amount of the liquid on the leaf is only 50% of the large amount of sediment, which can not maximize the efficacy and cause a large amount of pesticide waste. Therefore, it should be sprayed evenly during the operation to minimize the spraying residence time, reduce the dripping of the liquid from the leaves, and improve the efficacy.
More pesticide knowledge, please pay attention to pesticide network
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