Table 2.

Soil NO₃ ⁻-N and NH₄ ⁺-N leaching at various soil depths affected by different treatments over the entire experimental period.

Treatments	NO3 −-N (mg L−1)			NH4 +-N (mg L−1)
	20 cm	60 cm	100 cm	20 cm	60 cm	100 cm
C0	12.49 ± 0.45a	14.87 ± 0.61a	18.60 ± 0.12a	11.84 ± 0.46a	6.29 ± 0.13a	4.40 ± 0.20a
C1	11.56 ± 0.06a	15.73 ± 0.19a	15.21 ± 0.29b	12.10 ± 0.38a	4.76 ± 0.24b	3.15 ± 0.03b
C2	7.26 ± 0.48b	13.01 ± 0.82b	15.16 ± 1.14b	10.12 ± 0.27b	3.89 ± 0.20c	2.55 ± 0.11c
C3	6.87 ± 0.33b	11.25 ± 0.56b	13.76 ± 0.17b	9.77 ± 0.46b	3.54 ± 0.28c	2.11 ± 0.19c
ANOVA results
Period	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001
Treatment	<0.001	0.003	0.003	0.007	<0.001	<0.001
Period × Treatment	<0.001	<0.001	0.843	0.001	<0.001	<0.001

Data are mean ± SE. Lowercase letter in the same column represents significant differences among experimental treatments at the level of 0.05.