Table 1 Nitrogen fertilizer reduction with sheep manure experimental program.
Treatment | Amount fertilizer rate | ||||||||
|---|---|---|---|---|---|---|---|---|---|
kg·hm− 2 | kg·plant− 1 | ||||||||
N | P2O5 | K2O | Sheep manure | N | P2O5 | K2O | Sheep manure | ||
1 | CK | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
2 | N0 | 0 | 300 | 75 | 0 | 0 | 0.267 | 0.067 | 0 |
3 | N | 300 | 300 | 75 | 0 | 0.267 | 0.267 | 0.067 | 0 |
4 | N2 | 240 | 300 | 75 | 0 | 0.213 | 0.267 | 0.067 | 0 |
5 | N2F1 | 240 | 300 | 75 | 22,500 | 0.213 | 0.267 | 0.067 | 20 |
6 | N2F2 | 240 | 300 | 75 | 33,750 | 0.213 | 0.267 | 0.067 | 30 |