Newly planted trees and shrubs should receive light applications of what during their first growing season?

Newly planted trees and shrubs require specific care during their first growing season to establish strong root systems and promote healthy growth. Light applications of fertilizer during this initial period are beneficial because they provide essential nutrients that support the development of the plant. Fertilizers can help enhance root growth, increase foliage, and improve overall vigor, ensuring that the plants establish themselves effectively in their new environment.

Using fertilizers correctly means applying them sparingly, as excessive application can harm the plants or lead to nutrient runoff. The timing and type of fertilizer are also critical; slow-release formulations can supply a steady stream of nutrients over time, aligning with the natural growth cycles of the young plants.

In comparison, pesticides and herbicides serve different purposes; they are typically used for controlling pests or weeds, which is not the immediate concern for newly planted seedlings. Water is vital, but the question specifically pertains to the application of light amendments to promote growth rather than hydration. Therefore, light applications of fertilizer are the most appropriate choice for supporting newly planted trees and shrubs during their critical first growing season.