Notes
Two notes, with the sources under them.
Written for this site. Each one cites the public page the fact came from. Nothing here is a news reprint.
- Iowa State does not test soil anymore
What ISU Extension tells home gardeners to do instead, and which labs it names.
2026-10-11
- Ten to fifteen cores, four to eight inches, one bag
How ISU Extension describes a home soil sample, and when to take it.
2026-10-11