The STH-7 combination soil test kit uses simplified colorimetric / visual methods for analysis of readily available nutrients. The extractant used is Morgans Universal extractant. The STH-7 measures pH (100 tests), nitrate. phosphorus, potassium, humus, calcium and magnesium (each 50 tests). Each kit includes complete instructions and a soil management handbook. For detailed information please follow this product link
to the Lamotte website.
This product was added to our catalog on Tuesday 30 November, 1999.