What are trim passes in the context of fertilizer application?

Trim passes refer to the application of fertilizer along the edges of a field or lawn area. This practice is crucial for ensuring that all areas receive adequate coverage, particularly around borders, driveways, and gardens where standard passes may not reach effectively. By applying fertilizer in these areas, applicators can prevent uneven treatment, which is important for achieving uniform growth and minimizing wasted resources.

Trim passes help in maintaining the overall effectiveness of the fertilizer application by addressing spots that might be overlooked during wider, bulk passes across an area, ensuring that all parts of the landscape receive the necessary nutrients for optimal health and growth. The other options pertain to different aspects of fertilizer application but do not specifically capture the essence of what trim passes are, which focus primarily on the edges and ensuring complete coverage.