Can Enhanced efficiency fertilizer be applied after November 15?

Enhanced efficiency fertilizers are formulated to reduce nutrient loss and improve uptake by plants, making them a more environmentally sound option. However, in Maryland, the application timeline for fertilizers is governed by specific regulations aimed at minimizing nutrient runoff and protecting water quality.

The Maryland nutrient management law establishes that no fertilizers can be applied after November 15 to ensure that any nutrients applied do not wash away during winter months when plant uptake is minimal. This restriction is particularly important in preventing excess nutrient loading in waterways, which can lead to issues such as algal blooms and degraded aquatic ecosystems.

The timing rule reflects an understanding of seasonal changes in plant growth and nutrient requirements, as well as the increased risk of runoff during the winter months when precipitation patterns change. By adhering to this November 15 cutoff, those managing land for agricultural purposes can ensure compliance with state regulations while also promoting sustainable practices that protect the environment.