First, foliar fertilizer spraying time should be appropriate
In order to prolong the time for the leaves to be wetted with the fertilizer solution, it is beneficial to the absorption of nutrient elements. The time for spraying the foliar fertilizer is best before and after the sunny and windless evening. This can delay the drying speed of the foliage, which is conducive to the penetration of ions into the blade. Spray it evenly so that the front of the blade is completely wet. Spray heavy foliar fertilizer in case of heavy rain, should be sprayed again.
Second, the concentration of foliar fertilizer should be appropriate
Because the foliar fertilizer is sprayed directly on 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. When the concentration is too low, the amount of nutrients that the crops are exposed to is small, and the effect is not obvious. When the concentration is too high, the leaves are often burned to cause damage. The same foliar fertilizer is sprayed on different crops in different concentrations, which should be based on the type of crop.
Third, the acidity of foliar fertilizer should be suitable
Nutritional elements have different states of presence at different pH levels. In order to bring into play the greatest benefits of fertilizer, there must be a suitable range of acidity, generally requiring a pH value of 5 to 8, with a pH value that is too high or too low, which, in addition to the absorption of nutrient elements, will also harm crops.
Fourth, add additives
When the flight controller uses the plant protection drone to spray fertilizer on the foliar surface, proper addition of additives can increase the adhesion of the fertilizer solution to the plant leaves and promote the absorption of the fertilizer.
V. After spraying
After the plant protection drone spraying operation is over, please wash the soap with your hands and face, and work with the flight controller to clean the plant protection drone and spraying device.
VI. When the job is finished cleaning
After the plant protection drone spraying is completed, the residual fertilizer solution in the cleaning kit and the spray device should be properly treated, and the residual fertilizer solution in the piping should be handled safely. The medicine container, piping, and nozzles need to be specially cleaned.
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