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Nutrient audits for N, P and K on several organic farms in the UK (Adapted from Goulding et al. (2000)) to two significant figures.
| farm | nutrient balance (kg ha−1 yr−1) | ||
|---|---|---|---|
| N | P | K | |
| upland | +18 | −0.2 | +4.6 |
| lowland dairy | +120 | −3.8 | +6.2 |
| stockless | +96 | +1.9 | −20.0 |
