Table 4.

Yield-scaled N₂O-N, NH₃-N and NO₃^--N losses. Within columns, means followed by the same letter are not significantly different between treatments according to the Tukey’s HSD test (p = 0.05).

Thesis	Yield-scaled N2O-N losses (kg N Mg grain-1)	Yield-scaled NH3-N losses (kg N Mg grain-1)	Yield-scaled NO3-N losses (kg N Mg grain-1)	Yield-scaled cumulative N-losses (kg N Mg grain-1)
A	0.61 ± 0.02 a	1.35 ± 0.27 a	3.75 ± 0.77 a	5.71 ± 0.70 a
A + P	0.36 ± 0.06 b	0.61 ± 0.11 b	1.96 ± 0.32 b	2.93 ± 0.31 b
P	0.37 ± 0.04 b	0.32 ± 0.06 b	1.57 ± 0.26 b	2.26 ± 0.19 b
p-value	< 0.0001	< 0.0001	0.0123	0.0016