When are fertilizer applications prohibited according to best practices?

The prohibition of fertilizer applications before rain or on frozen soil is grounded in the principles of environmental protection and optimal nutrient management. Applying fertilizer just before anticipated rainfall can lead to runoff, where the applied nutrients wash away into surrounding water bodies, potentially causing water quality issues such as eutrophication. Similarly, applying fertilizer on frozen soil can prevent proper absorption by plants and increase the likelihood of nutrient loss due to thawing and subsequent runoff when temperatures rise. These best practices help ensure that nutrients remain available for plants while minimizing environmental impacts, thereby supporting sustainable agricultural practices.

In contrast, while it may be prudent to refrain from applying fertilizers during heavy wind conditions or in the presence of water bodies, those scenarios don't encompass the significant risk of nutrient loss that arises specifically with rainfall or frozen soil. Seasonal limitations on winter months do not apply universally and can vary based on regional agricultural practices and crop requirements.