1. Unless otherwise specified in the NCDA&CS Plant Tissue Analysis Guide, the correct plant part for most crops is the most recent mature leaf (MRML).
2. To obtain a complete nutrient analysis, submit enough plant material.  A general rule of thumb is to collect at least two handfuls of leaves per sample.
3. Samples must be dried and ground according to NCDA&CS Protocol.  Undried, unground will not be accepted as of September 1, 2024.

For detailed information, please refer to the NCDA&CS Plant Tissue Analysis Guide.