Effects of Irrigation and Nitrogen Fertilizer Input Levels on Soil -N Content and Vertical Distribution in Greenhouse Tomato (Lycopersicum esculentum Mill.)

Table 2

Statistical analysis of soil -N content from 0 to 60 cm soil depth was analyzed on different irrigation and fertilization treatment.

Treatment	2012			2013
	Mean value	Standard deviation	CV	Mean value	Standard deviation	CV
W1F1	21.00	6.63	0.32	26.25	7.12	0.31
W1F2	11.91	1.05	0.09	13.24	1.18	0.09
W1F3	6.99	2.09	0.12	7.13	2.11	0.15
W2F1	22.41	9.88	0.44	32.57	10.36	0.48
W2F2	18.91	6.76	0.36	17.68	6.50	0.41
W2F3	15.59	7.38	0.37	15.33	7.21	0.37
W3F1	17.96	8.69	0.48	18.24	8.88	0.49
W3F2	17.28	6.33	0.37	16.58	6.39	0.39
W3F3	12.36	3.30	0.27	11.37	3.14	0.23
Irrigation	0.019	—	—	0.023	—	—
Fertigation	0.0001	—	—	0.001	—	—
Irrigation × fertigation	0.014	—	—	0.008	—	—

The values are statistically significant by Duncan’s test at . Significant at , 0.01, and 0.001 level, respectively, where CV is coefficient of variation.