P kg∙ha⁻¹	N1 kg∙ha⁻¹	N2 kg∙ha⁻¹	N3 kg∙ha⁻¹	N4 kg∙ha⁻¹	Means
P1	7000	9233	9266	10166	8916^b
P2	9366	10033	10200	9500	9775^ab
P3	9966	8933	10066	12166	10283^a
Means	8777^b	9400^b	9844^ab	10611^a
Control	Control vs. rest				5666
Rest	Control vs. rest				9658