Table 1 The properties of paddy soil subjected to long-term different fertilization regimes.

From: Long-term combined application of manure and chemical fertilizer sustained higher nutrient status and rhizospheric bacterial diversity in reddish paddy soil of Central South China

Treatment

pH

SOC (g/kg)

AN(mg/kg)

AP(mg/kg)

AK(mg/kg)

E-Ca2+(cmol/kg)

E-Mg2+(cmol/kg)

SOC/TN

NF

5.91 ± 0.01 b

13.70 ± 0.72 d

113.83 ± 1.24 d

10.02 ± 0.39 c

98.74 ± 4.86 c

3.01 ± 0.08 c

0.89 ± 0.00 c

8.81 ± 0.39 b

NPK

5.70 ± 0.03 c

15.95 ± 0.89 c

147.88 ± 11.41 c

21.21 ± 1.86 b

107.67 ± 2.83 c

3.40 ± 0.09 b

1.02 ± 0.01 a

8.83 ± 0.24 b

M

6.08 ± 0.02 a

20.45 ± 0.56 b

182.18 ± 10.41 b

18.39 ± 1.38 b

164.64 ± 7.95 b

3.48 ± 0.07 ab

1.03 ± 0.00 a

9.63 ± 0.56 b

NPKM

6.06 ± 0.01 a

24.65 ± 0.72 a

213.01 ± 5.85 a

43.63 ± 2.52 a

178.60 ± 7.37 a

3.61 ± 0.09 a

0.94 ± 0.00 b

10.92 ± 0.72 a

  1. Date are presented as the Mean ± Standard Deviation (n = 3). Different letters within columns followed by indicate significance at P < 0.05 according to Duncan’s test. NF, no fertilization treatment; NPK, chemical NPK fertilizers treatment; M, composted manure treatment; NPKM, chemical NPK fertilizers plus composted manure treatment. SOC, soil organic carbon; AN, alkali-hydrolyzable nitrogen; AP, available phosphorus; AK, available potassium; E-Ca2+, exchangeable Ca2+; E-Mg2+, exchangeable Mg2+; SOC/TN, the ratio of soil organic carbon to soil total nitrogen.
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