Fig. 5. Representative example of the relationship between (a) the NO-N flux and NO-N concentration and (b) the NO₂–N flux and NO₂–N concentration just after the chamber was closed. Measurements were made between 21 June 1998 and 30 Apr. 1999. The treatment was poultry manure (PM). Solid line: regression (a) y = -0.149x + 0.974, R² = 0.62, p < 0.01; (b) y = -0.29x + 0.087, R² = 0.560, p < 0.01.

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