Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The volumetric composition of the three soil mixtures used, their percentage organic matter (OM) measured by loss on ignition (LOI), and the measured pH of the soils
| Soil mixture | Coarse sand (% by volume) | Fine sand (% by volume) | Loam (% by volume) | Composted bark (% by volume) | OM (LOI % w/w) | pH |
|---|---|---|---|---|---|---|
| Low organic matter | 35 | 35 | 22.5 | 7.5 | 1.93 | 7.16 |
| Medium organic matter | 20 | 20 | 45 | 15 | 2.37 | 7.00 |
| High organic matter | 0 | 0 | 75 | 25 | 6.15 | 7.00 |
