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Low-volume spray technology refers to a method where the amount of pesticide applied per unit area is not significantly diluted, using only a slight dilution of the concentrated pesticide solution. This approach reduces water consumption by up to 80% compared to traditional spraying techniques. However, there is a limit to how much pesticide can be effectively applied. When the volume exceeds this threshold, fine droplets on the leaf surface tend to merge into larger drops, which then roll off, leading to a significant decrease in the amount of pesticide that actually adheres to the leaves.
Electrostatic spray technology addresses this issue by enhancing the deposition of liquid droplets onto plant surfaces. By charging the droplets, the technology ensures better coverage—not only on the upper side of the leaves but also on the underside and hard-to-reach areas of the plant. This leads to an effective utilization rate of pesticides as high as 90%, making it a more efficient and environmentally friendly option.
Another innovative technique is pelletizing and applying technology, especially suitable for water-soluble agents used in rice fields. This method involves converting the pesticide into small, solid pellets that can be evenly distributed across the field. Compared to traditional application methods, this technique improves working efficiency by tenfold, eliminates pesticide drift, and prevents contamination of nearby crops.
Author: Wu Ming
Source: Agricultural Science and Technology News
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This article highlights the importance of adopting advanced pesticide application technologies to improve efficiency, reduce waste, and protect the environment. As agricultural practices continue to evolve, such innovations play a crucial role in sustainable farming.