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Experimental soil characteristics.
| Year | pH | Organic matter(g kg-1) | Total N(g kg-1) | Total P(g kg-1) | Total K(g kg-1) | Alkali-hydrolyzable N (mg kg-1) | Available P(mg kg-1) | Available K (mg kg-1) |
|---|---|---|---|---|---|---|---|---|
| 2014 | 7.26 | 29.17 | 1.58 | 0.38 | 3.91 | 116.51 | 13.02 | 65.04 |
| 2015 | 5.80 | 29.58 | 1.28 | 0.50 | 7.75 | 97.64 | 20.27 | 56.52 |
| 2016 | 5.70 | 30.74 | 1.27 | 0.54 | 8.85 | 100.75 | 26.39 | 28.97 |
