Table 1 Basic physical and chemical indicators of soils.
Property | Measuring method | Value |
|---|---|---|
pH | Potentiometric method | 6.58 |
Organic matter (g·kg−1) | Potassium dichromate external heating method | 115.01 |
Hydrolyzable nitrogen N (mg·kg−1) | Sulfuric acid digestion sodium salicylate method | 49.25 |
Available P (mg·kg−1) | Sulfuric acid digestion molybdenum antimony colorimetric method | 5.96 |
Available K (mg·kg−1) | Ammonium acetate extraction flame photometric method | 153.90 |
