Responses of soil organic and inorganic carbon to organic and phosphorus fertilization in a saline − alkaline paddy field

Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Table 3 Stocks of water soluble cations, SOC and SIC over 0–20 cm and 20–100 cm under different treatments

Treatment	Ca²⁺ (g m⁻²)		Mg²⁺ (g m⁻²)		K⁺ (g m⁻²)		Na⁺ (g m⁻²)		SOC (kg Cm⁻²)		SIC (kg Cm⁻²)
Treatment	0–20 cm	20–100 cm	0–20 cm	20–100 cm	0–20 cm	20–100 cm	0–20 cm	20–100 cm	0–20 cm	20–100 cm	0–20 cm	20–100 cm
C₀P₀	20.3 ab	62.0 c	7.99 ab	28.4 b	2.00 def	12.0 bc	41.7 a	242.3 ab	1.20 bc	1.62 cd	2.65 a	12.51 a
C₀P₁	21.6 a	64.9 c	7.11 bc	26.9 b	2.39 bcd	12.7 bc	32.8 ab	189.1 ab	1.19 bc	1.90 bc	2.85 a	12.26 a
C₀P₂	19.7 abc	70.6 c	7.20 abc	24.4 b	2.33 cde	10.3 bc	32.9 ab	224.3 ab	1.16 cd	1.91 bc	2.72 a	12.16 ab
C₁P₁	17.0 cd	73.9 bc	6.49 cd	23.1 b	2.94 abc	9.5 cd	22.8 b	167.2 b	1.22 bc	2.33 a	2.74 a	11.75 b
C₁P₂	18.2 bc	72.8 bc	7.09 bc	22.7 b	3.35 a	11.1 bc	29.1 ab	242.6 ab	1.29 abc	2.01 ab	2.75 a	12.12 ab
C₂P₁	20.7 ab	97.8 ab	7.82 ab	38.8 a	3.50 a	26.7 ab	40.3 a	237.3 ab	1.40 a	2.30 a	2.62 a	11.76 b
C₂P₂	21.3 ab	102.1 a	8.40 a	41.6 a	3.10 ab	31.2 a	41.8 a	261.9 a	1.35 ab	1.99 bc	2.74 a	12.22 a

Values followed by the same letter are not significantly different at P < 0.05 based on LSD test