Table 1 Soil characteristics in the experiments.
From: Morphophysiological mechanism of rice yield increase in response to optimized nitrogen management
Year | pH | Organic matter (g kg−1) | Total N (g kg−1) | Total P (g kg−1) | Total K (g kg−1) | Alkali-hydrolyzale 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 |