Year | Parameter | Field location | |||||
---|---|---|---|---|---|---|---|
Central | Honam | Youngnam | |||||
Noeundong | Jukdong | Wanju | Gimje | Jinju | Sacheon | ||
1st | Straw application rate (Mg ha−1) | 9.0 | 9.0 | 6.0 | 6.0 | 8.0 | 8.0 |
C (%) | 38.6 | 38.5 | 35.9 | 34.0 | 38.5 | 38.1 | |
N (%) | 0.6 | 0.6 | 0.4 | 0.5 | 0.6 | 0.6 | |
C/N ratio | 64.3 | 64.2 | 89.8 | 68.0 | 64.2 | 63.5 | |
2nd | Straw application rate (Mg ha−1) | 9.0 | 9.0 | 6.0 | 6.0 | 8.0 | 8.0 |
C (%) | 36.9 | 38.1 | 35.5 | 35.3 | 37.4 | 37.1 | |
N (%) | 0.5 | 0.5 | 0.4 | 0.5 | 0.5 | 0.5 | |
C/N ratio | 73.8 | 76.2 | 88.8 | 70.6 | 74.8 | 74.2 |