TABLE 1

Physicochemical properties of the collected paddy soilsa

Sample% of sample with indicated particle sizepHSoil moisture (% of dry wt)Amt (mg/kg, ±SD) of dry paddy soilAmt (g/kg, ±SD) of dry paddy soilC/N
<2 μm2–50 μm>50 μmNO3-NNH4+-NSOCTotal N
YT2.6239.0458.345.11f57.58bcd2.61 ± 0.18b10.95 ± 0.37b26.81 ± 1.17d2.28 ± 0.08e9.77
TY8.6580.9410.415.44e47.20cde1.45 ± 0.82c7.55 ± 1.03cd21.45 ± 0.74e2.03 ± 0.01f8.95
FZ3.2153.2843.515.85d64.26bc0.87 ± 0.41cd14.06 ± 1.08a18.41 ± 0.56f1.63 ± 0.01i9.56
AH0.1340.8659.015.86d44.43de0.31 ± 0.04d8.34 ± 0.16c13.06 ± 0.40h1.26 ± 0.04j8.67
FST3.0661.5735.375.96d56.52bcd2.15 ± 0.48bND20.12 ± 1.57ef1.86 ± 0.00h9.22
JX2.5655.5941.856.40c57.66bcd0.34 ± 0.08d2.88 ± 0.15f27.58 ± 0.60d2.37 ± 0.00d9.77
GZ25.1371.892.986.51c53.76bcd1.23 ± 0.47cd3.67 ± 0.24ef24.94 ± 0.84d1.96 ± 0.00g10.64
ZJ2.0429.5968.376.75b35.08e1.13 ± 0.04cd3.83 ± 0.67ef15.51 ± 0.63g1.29 ± 0.04j10.22
CS1.5556.3242.136.77b66.96b0.28 ± 0.01d5.83 ± 2.72de35.32 ± 0.98b3.00 ± 0.01b9.87
HB3.6861.9934.337.25a49.78cd1.06 ± 0.30cd7.11 ± 1.51cd27.04 ± 2.08d2.31 ± 0.05e11.83
GL5.4668.9825.567.36a55.59bcd4.74 ± 0.83a3.61 ± 0.18ef45.93 ± 2.45a3.52 ± 0.02a18.20
SC0.6739.8959.447.36a79.17a0.32 ± 0.08d5.30 ± 0.10def30.43 ± 1.14c2.66 ± 0.01c14.71
  • a SD, standard deviations; ND, not detected. Different letters after values in the same column indicate significant difference (P < 0.05).