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2 Before the work, check the implements. The implements must be smooth and leak-proof. The switches should be flexible and have good atomization. All parts are in good technical condition.
3 According to the spray pressure and the determined nozzle spray during normal operation, the flow rate (l/min) of each nozzle is measured, and the total flow is equal to the sum of the flow rate of each nozzle.
4 test spray. Check if the implement can work normally.
Second, the spray operation 1 unit walking speed calculation. According to the requirements of agricultural technology, the running speed of the unit can be determined arbitrarily, and this is an important parameter to ensure the spraying effect.
2 The height of the nozzle from the target. According to all the nozzles, the height of the nozzle from the target is determined.
3 walking method. Shuttle-type walking methods are generally used, and attention should be paid to the connection of adjacent work widths.
4 Safety technical requirements in operation. Operators should wear safety protection products; work is forbidden to eat and drink, work must be thoroughly cleaned before eating; operation should pay attention to changes in the wind direction, pay attention to prevent splashing when adding medicine; liquid container should be handled in time, can not be thrown anywhere .
Problems to be noticed in the use of plant protection machinery
First, the preparation of equipment 1 According to the requirements of the control object and spray operations, the correct choice of sprayer (type), type of sprayer and sprayer size. When pests and diseases are controlled in Daejeon, hydraulic sprayers and conical spray heads are selected; sprayer sprayers and fan-shaped spray heads are used for weeding; sprayers, high-pressure, hydraulic sprayers or air-feed sprayers are used for fruit trees and sidewalk trees. .