Certified Crop Advisor Practice Exam

What is the common method used to apply fertilizers to pasture?

1. Injection

2. Broadcast

3. Top dress

4. Subsurface

The correct answer is: Top dress

The common method used to apply fertilizers to pasture is top dressing. This technique involves spreading a thin layer of fertilizer evenly over the growing pasture without tilling the soil. It is particularly effective for pastures because it allows for nutrient uptake while minimizing damage to the vegetation and soil structure. Top dressing can support healthy grass growth by providing essential nutrients directly to the plant during its active growing phase. Injection may be used for certain applications, especially with liquid fertilizers, but it is less common for pasture due to the potential for soil disturbance and the need for specialized equipment. Broadcast application covers a broad area and can increase efficiency, but it might not be as precise as top dressing in terms of targeting the needs of the crop. Subsurface application involves placing fertilizers below the soil surface, which is typically not practical for pastures since it can disrupt root systems and is generally better suited for row crops. Overall, top dressing is strategically beneficial for promoting the health and productivity of pasture systems.