The Influence of N₂O Emission to Water and Nitrogen Coupling Mechanism in Black Soil under Drip Irrigation Mode

Table 1

The treatment in field plot experiment.

Treatment	Drip amount (mm)	Nitrogen application amount (kg/hm^2)
W1N4	300	90
W2N4	350	90
W3N4	400	90
W1N3	300	81
W2N3	350	81
W3N3	400	81
W1N2	300	72
W2N2	350	72
W3N2	400	72
W1N1	300	63
W2N1	350	63
W3N1	400	63
W1N0	300	0
W2N0	350	0
W3N0	400	0
CK	0	90