Research Article
Effects of Stubble Management on Soil Fertility and Crop Yield of Rainfed Area in Western Loess Plateau, China
Table 5
Nitrogen balance under different treatments over 4 years (kg N ha−1).
| Rotation | Item | T | NT | TS | NTS | Significant |
| P/W | Input | 269.00 | 269.00 | 299.37 | 299.37 | — | Fixation | 4.65 | 27.12 | 20.73 | 26.06 |
***
| Output | 183.45 | 167.18 | 139.73 | 159.25 |
**
| Balance | 90.20 | 128.94 | 180.37 | 166.18 |
***
|
| W/P | Input | 269.00 | 269.00 | 299.37 | 299.37 | — | Fixation | 3.42 | 25.63 | 16.90 | 24.89 |
***
| Output | 144.82 | 130.34 | 102.51 | 139.09 |
**
| Balance | 127.60 | 164.29 | 213.76 | 185.17 |
***
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Significant level (; ; ).
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