Which category of NASM includes unprocessed plant materials?

Category 1 of the Nutrient Management Act Standards of Management (NASM) includes unprocessed plant materials. This category is critical because it encompasses materials that have not been altered or contaminated and can be used as organic amendments in soil management practices without significant risks. Unprocessed plant materials, such as crop residues and fresh plant matter, typically offer a range of benefits, including enhancing soil structure, providing nutrients, and improving water retention.

The categorization reflects their suitability for use in soil management and nutrient application, emphasizing the importance of maintaining their raw, unaltered state to maximize their agronomic and ecological benefits. By understanding Category 1, individuals involved in nutrient management can make informed decisions regarding the application of organic materials to optimize soil and water quality.