The efficiency of crop protection product applications depends directly on the proper adjustment and maintenance of spraying equipment. Before beginning field work, it is essential that the producer performs a full inspection of the machine, ensuring safety, accuracy, and preventing losses to the crop.
The first step is a complete cleaning of the machine. It is important to check all filters — the main filter, boom filter, and nozzle tip filters. These components are responsible for retaining impurities and preventing clogging during application.
In addition, all hoses and tubing must be inspected. Folded, obstructed, or residue-contaminated hoses can compromise liquid flow, causing failures or excessive application in certain areas of the field.
Keeping the system clean prevents phytotoxicity caused by leftover residues and ensures a uniform spray application without risking plant burn.
During inspection, the operator must watch for leaks in hoses and fittings. Leaks reduce efficiency, waste product, and may cause contamination risks.
It is also important to ensure that spray nozzles and tips are in good condition. Clogged or worn nozzles alter the spray volume, decreasing application uniformity.
Another essential point is the pressure gauge, responsible for indicating the machine’s working pressure. If it is miscalibrated or defective, pressure variations may occur, resulting in incorrect product dosage.
Proper calibration ensures that pressure remains constant and that the spray volume is consistent across all boom nozzles, preventing failures and waste.
The nozzles on the sprayer require special attention. When worn, they deliver uneven flow rates, causing non-uniform application. This compromises the correct dosage and reduces effectiveness in controlling diseases, insects, and weeds. For precise and efficient spraying, all nozzles must be in good condition and deliver uniform flow.
Before starting the season, performing a complete spraying checklist is an essential practice. System cleaning, hose and filter inspection, proper pressure gauge function, and nozzle evaluation ensure greater application efficiency, input savings, and crop protection.
