Abstract
A nondestructive method to determine total C and N concentrations in soil size fractions is desirable when a limited sample is available. Near-infrared reflectance spectroscopy (NIRS) was used to determine the total C and N concentration in silt (50.0-2.0 μm) and coarse clay (2.0-0.2 μm), separated from 12 surface soils, by regressing the diffuse reflectance of near-infrared radiation with constituent concentrations determined using combustion techniques. Equation development with only silt samples improved the accuracy of NIRS calibration equations. It is concluded that NIRS can be used to predict C and N concentrations in soil size fractions. -from Authors
| Original language | English (US) |
|---|---|
| Pages (from-to) | 288-291 |
| Number of pages | 4 |
| Journal | Soil Science Society of America Journal |
| Volume | 55 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 1991 |
All Science Journal Classification (ASJC) codes
- Soil Science