NA 057
DIN Standards Committee Food and Agricultural Products
NA 057-03-01 AA
Soil improvers and growing media
Standardization of two types of material used in agriculture, horticulture, gardening and landscaping. 1) Soil improvers, that is materials, which may have been composted or otherwise processed, added to soil mainly to improve its physical condition without causing harmful effects. 2) Growing media, that is materials in which plants are grown. Lime products and materials used solely as plant nutrients are excluded.
