Nitrous oxide emissions and maize yield as influenced by nitrogen fertilization and tillage operations in upland soil

Applied Biological Chemistry

Table 3 ANOVA and P-value of cumulative N₂O emission, grain yield, yield-scaled N₂O emission, bulk density, and water-filled pore space

Item	df	Cumulative N₂O emission	Grain yield	Yield-scaled N₂O emission	Bulk density	Water-filled pore space
Tillage operations (T)	1	0.002	NS	NS	< 0.001	< 0.001
Nitrogen fertilizations (N)	1	< 0.001	< 0.001	0.011	NS	NS
Year (Y)	1	< 0.001	0.005	NS	NS	< 0.001
T × N	1	0.003	NS	NS	NS	NS
T × Y	1	< 0.001	0.004	NS	NS	NS
N × Y	1	NS	< 0.004	< 0.001	NS	NS
T × N × Y	1	NS	NS	NS	NS	NS