Table 1. Seasonal and annual total (Mean ± 1SE, n = 3) of N₂O and NO emissions and vegetable yield (fresh weight) in greenhouse vegetable cropping systems.

Measurement period	Treatment	N fertilizer	N2O-N	NO-N	NO-N/N2O-N ratio	Yield (t ha−1)
		(kg N ha−1)
Tomato (24 Aug 2013~3 Mar 2014, 190 days)	Control	0	1.09 ± 0.17d	0.63 ± 0.09fgh	0.61 ± 0.14abcd	112.40 ± 5.38a
	F−L	260	4.97 ± 0.32abc	3.69 ± 0.28b	0.74 ± 0.04abc	120.67 ± 5.46a
	F−M	400	5.20 ± 0.34abc	5.08 ± 0.40a	0.98 ± 0.17a	123.07 ± 5.73a
	F−H	520	6.60 ± 0.48a	5.95 ± 0.26a	0.91 ± 0.08ab	122.40 ± 9.83a
Chinese cabbage (4 Mar~7 May 2014, 65 days)	Control	0	0.62 ± 0.02d	0.21 ± 0.12h	0.33 ± 0.03cd	71.41 ± 8.57b
	F−L	100	1.78 ± 0.23cd	1.25 ± 0.43efgh	0.72 ± 0.11abc	79.84 ± 6.50b
	F−M	150	2.09 ± 0.26cd	1.55 ± 0.71defg	0.76 ± 0.16abc	73.17 ± 4.52b
	F−H	200	2.70 ± 0.48bcd	1.89 ± 0.34cdef	0.73 ± 0.07abc	69.16 ± 4.72b
Green soybean (8 May~13 Aug 2014, 98 days)	Control	0	2.71 ± 0.26bcd	0.42 ± 0.16gh	0.16 ± 0.02d	8.39 ± 1.07c
	F−L	60	5.71 ± 0.72ab	2.00 ± 0.57cde	0.38 ± 0.10cd	10.25 ± 1.36c
	F−M	90	6.79 ± 0.82a	2.62 ± 0.91bcd	0.43 ± 0.09bcd	9.26 ± 0.92c
	F−H	120	7.17 ± 1.08a	2.97 ± 0.61bc	0.43 ± 0.05bcd	9.94 ± 0.57c
Annual cycle (24 Aug 2013~13 Aug 2014, 353 days)	Control	0	4.41 ± 0.45	1.26 ± 0.37	0.28 ± 0.03	192.20 ± 15.01
	F−L	420	12.45 ± 1.27	6.94 ± 1.28	0.57 ± 0.09	210.76 ± 13.31
	F−M	640	14.07 ± 1.42	9.25 ± 2.02	0.69 ± 0.14	205.50 ± 11.17
	F−H	840	16.47 ± 2.04	10.81 ± 1.21	0.66 ± 0.04	201.51 ± 15.13

Data shown are means ± standard errors of three replicates. The flux measurements period includes the vegetable-growing season and the following fallow period. Different letters within the same column indicate significant differences among treatments at p < 0.05 level.