Which chemigation system should you use to reduce drift and increase accuracy of pesticide application?

Which chemigation system should you use to reduce drift and increase accuracy of pesticide application?

• A. Micro-irrigation systems
• B. Conventional irrigation
• C. Flood irrigation
• D. Center-pivot irrigation

Answer: (A)

Using chemigation for pesticide application is most effective when the system delivers water at low pressure directly to the crop’s root zone. Micro-irrigation, such as drip or micro-sprinkler setups, does just that: water and any dissolved pesticide are applied through small emitters placed close to the plant, resulting in slow, targeted delivery. This keeps the chemical near the root area, improves uniformity across the field, and minimizes off-target movement, which means less drift and more accurate placement. Other irrigation approaches involve higher pressures, larger droplets, or wider distribution patterns that cover more ground and can increase drift and volatilization, making precise chemigation harder. Conventional sprinkler, flood, or center-pivot systems tend to spread water over larger areas and aren’t as well suited for precise pesticide placement. So the micro-irrigation approach provides the best combination of low drift and accurate, consistent delivery for chemigation.

Using chemigation for pesticide application is most effective when the system delivers water at low pressure directly to the crop’s root zone. Micro-irrigation, such as drip or micro-sprinkler setups, does just that: water and any dissolved pesticide are applied through small emitters placed close to the plant, resulting in slow, targeted delivery. This keeps the chemical near the root area, improves uniformity across the field, and minimizes off-target movement, which means less drift and more accurate placement.

Other irrigation approaches involve higher pressures, larger droplets, or wider distribution patterns that cover more ground and can increase drift and volatilization, making precise chemigation harder. Conventional sprinkler, flood, or center-pivot systems tend to spread water over larger areas and aren’t as well suited for precise pesticide placement.

So the micro-irrigation approach provides the best combination of low drift and accurate, consistent delivery for chemigation.