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Table 1 Soil properties and wheat yield in different fertilization regimes

From: Chronic fertilization of 37 years alters the phylogenetic structure of soil arbuscular mycorrhizal fungi in Chinese Mollisols

Treatment

pH

AP, g kg−1

AK, g kg−1

TN, g kg−1

NH4+-N, mg kg−1

NO3−-N, mg kg−1

OM, g kg−1

Yield, kg ha−1

CK

6.81 ± 0.01 c

10.36 ± 2.73 a

127.22 ± 6.91 a

1.41 ± 0.03 a

15.87 ± 2.46 a

0.93 ± 0.34 ab

28.14 ± 0.28 a

1546.4 ± 96.4 a

M

6.84 ± 0.09 c

20.28 ± 5.45 b

143.74 ± 8.25 ab

1.42 ± 0.05 ab

13.08 ± 2.10 a

1.04 ± 0.20 ab

29.49 ± 0.35 b

2927.9 ± 437.9 b

NPK

6.07 ± 0.06 a

76.08 ± 3.94 c

148.40 ± 3.54 b

1.52 ± 0.05 b

15.70 ± 2.15 a

0.50 ± 0.05 a

29.25 ± 0.46 ab

3938.3 ± 238.3 c

MNPK

6.26 ± 0.06 b

79.83 ± 3.64 c

153.80 ± 10.22 b

1.44 ± 0.02 ab

13.97 ± 0.99 a

1.15 ± 0.22 b

28.48 ± 0.80 ab

4104.9 ± 214.9 c

  1. Values are means ± standard deviations (n = 3). Values within the same column followed by different letters indicate significant differences (P < 0.05) according to Tukey’s multiple comparison
  2. Treatment: CK, no fertilizer; M, manure; NPK, chemical nitrogen, phosphorus and potassium fertilizer; MNPK, chemical nitrogen, phosphorus and potassium fertilizer plus manure
  3. Soil properties: AP, available P; AK, available K; TN, total nitrogen; NH4+, ammonium nitrogen; NO3−-N, nitrate nitrogen; OM, organic matter
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