Is it permissible to fertilize frozen ground after March 1?

Fertilizing frozen ground after March 1 is not permitted. This rule is based on environmentally responsible practices aimed at preventing nutrient runoff and protecting water quality. When the ground is frozen, it is unable to effectively absorb and retain fertilizer, which can lead to increased runoff during thawing periods or rain events. This runoff can carry excess nutrients into waterways, contributing to pollution and harmful algal blooms.

Therefore, the correct answer reflects an understanding of the regulations designed to protect the environment and maintains best practices for fertilizer application. This restriction encourages proper timing and conditions for fertilization, ensuring that nutrients are used efficiently and reduce negative environmental impacts.