Table 1. Cumulative indices for total extractable ammonium (c-tsNH₄⁺), nitrite (c-NO₂⁻), nitrate (c-NO₃⁻), the sum of nitrite and nitrate (c- [NO₂⁻ + NO₃ ⁻]), actual N₂O production rate (c-aN₂O), acidity (c-H⁺) and solution-phase ammonium (c-slNH₄⁺) and ammonia (c-slNH₃) as affected by soil type and rate of bovine urine (BU) in Series 1 experiments.

Soil	BU added (mg N kg−1)
	600	800	1000	1200
c-tNH4+ (g N d kg−1)
L	5.48 D‡	8.78 C	12.42 B	18.05 A
W	6.28 D	7.21 C	12.12 B	15.61 A
P > |t|	<0.001§	<0.001	0.216	<0.001
c-NO2− (mg N d kg−1)
L	23.95 D	59.55 C	209.37 B	761.04 A
W	15.43 B	18.72 B	72.64 A	94.38 A
P > |t|	0.005	<0.001	<0.001	<0.001
c-NO3− (g N d kg−1)
L	5.35 A	5.53 A	5.43 A	3.64 B
W	5.56 B	6.03 AB	6.22 AB	6.25 A
P > |t|	0.502	0.128	0.023	<0.001
c-(NO2− + NO3−) (g N d kg−1)
L	5.38 A	5.59 A	5.64 A	4.40 B
W	5.57 B	6.05AB	6.29 A	6.35 A
P > |t|	0.448	0.102	0.029	<0.001
c-H+ (mol H+ d kg−1)
L	0.315 A	0.295 A	0.256 B	0.129 C
W	0.267 A	0.274 A	0.243AB	0.221 B
P > |t|	0.010	0.217	0.433	<0.001
c-aN2O (mg N2O-N kg−1)
L	0.90 D	1.72 C	2.90 B	8.08 A
W	0.44 B	0.52 B	1.10 A	1.29 A
P > |t|	0.005	<0.001	<0.001	<0.001
c-slNH4+ (g N d kg−1)
L	0.94 D	2.02 C	4.45 B	10.29 A
W	0.35 C	0.41 C	0.74 B	1.01 A
P > |t|	0.020	<0.001	<0.001	<0.001
c-slNH3 (mg N d kg−1)
L	0.72 D	1.99 C	8.79 B	50.26 A
W	0.055 C	0.11 C	0.76 B	3.70 A
P > |t|	<0.001	<0.001	<0.001	<0.001

^‡Within a row, means followed by the same letter are not significantly different at P ≤ 0.05.

^§Significance of t test comparing the means from the two soils for a given rate of BU addition.