Appendix 2—table 1. Input of N and P into rice-animal coculture systems via feed and fertilizer application.
System | Treatment | Nitrogen input (kg ha–1) | Phosphorus input (kg ha–1) | ||||||
---|---|---|---|---|---|---|---|---|---|
Feed | Fertilizer* | Feed | Fertilizer | ||||||
Base fertilizer | Top-dress fertilizer | Total | Base fertilizer | Top-dress fertilizer | Total | ||||
Rice-carp | RM | --- | 82.50 | 29.40 | 111.90 | --- | 36.02 | 5.31 | 41.33 |
RA | 78.41 | 82.50 | --- | 82.50 | 19.63 | 36.02 | --- | 36.02 | |
Rice-crab | RM | --- | 112.5 | 44.94 | 157.44 | --- | 49.12 | 11.79 | 60.91 |
RA | 80.46 | 112.5 | --- | 112.50 | 20.62 | 49.12 | --- | 49.12 | |
Rice-turtle | RM | --- | 82.5 | 44.94 | 127.44 | --- | 36.02 | 11.79 | 47.81 |
RA | 105.46 | 82.5 | --- | 82.50 | 36.61 | 36.02 | --- | 36.02 |
The total amount of feed-N and - P input were determined by multiplying the amount of feed by the percentage of N and P in feed that were analyzed with a San++ Continuous Flow Analyzer (Skalar, Netherlands) (Lu, 1999).