Plant protection drone spraying foliar fertilizer pays attention to six aspects

1 Foliar fertilizer spraying time should be appropriate

In order to prolong the time when the leaf surface is wetted by the fertilizer solution, it is beneficial to the absorption of nutrients, and the time for spraying the foliar fertilizer is preferably selected before the sunny and windless evening. This can delay the air drying speed of the foliage and facilitate the penetration of ions into the blade. Spray evenly so that the front of the blade is completely wet. In case of heavy rain after spraying foliar fertilizer, it should be sprayed again.

2 The concentration of foliar fertilizer should be appropriate

Since the foliar fertilizer is directly applied to the foliage of the upper part of the crop, the buffering effect of the crop on the fertilizer is very small. Therefore, we must master the spraying concentration of foliar fertilizer. If the concentration is too low, the amount of nutrients in contact with crops is small, and the effect is not obvious; if the concentration is too high, the leaves will cause burns. The same type of foliar fertilizer is applied to different crops at different concentrations, depending on the type of crop.

3 The acidity of the foliar fertilizer should be suitable

Nutrient elements have different states of existence under different pH levels. To maximize the benefits of fertilizers, there must be a suitable range of acidity. Generally, the pH value is 5-8. The pH value is too high or too low. In addition to the absorption of nutrients, it will also cause damage to crops.

4 Adding additives

When using the plant protection drone to spray the fertilizer on the foliar surface, the flight controller can add the auxiliary agent to improve the adhesion of the fertilizer solution on the plant leaves and promote the absorption of the fertilizer.

5 Flying hand hygiene

Immediately after the plant protection drone spraying operation, please wash the soap handle and face, and clean the plant protection drone and spray device with the flight controller.

6 Aircraft cleaning

After the plant protection drone is sprayed, the residual fertilizer in the cleaning kit and the spraying device should be properly treated, and the residual fertilizer in the piping should be safely treated. The medicine box, piping, and nozzles need to be specially cleaned.

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