What should you pay attention to when spraying foliar fertilizer by agriculture spray drones? The time of foliar fertilizer spraying should be appropriate. In order to prolong the time for the leaves to be wetted by the fertilizer solution, which is conducive to the absorption of nutrients, the time of spraying foliar fertilizer is selected before and after a clear and windless evening. This can delay the air-drying speed of the leaf surface and facilitate the penetration of ions into the leaf. Agricultural 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.
