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Table 1 Soil properties and soybean yields of different fertilization strategies

From: Effect of long-term fertilization strategies on bacterial community composition in a 35-year field experiment of Chinese Mollisols

Fertilization strategy pH OM (g kg−1) AK (g kg−1) TK (g kg−1) NH4+ (mg kg−1) NO3 (mg kg−1) TN (g kg−1) AP (g kg−1) TP (g kg−1) Soybean yield (kg ha−1)
CK 6.43 ± 0.08c 24.39 ± 0.37a 0.17 ± 0.03a 6.30 ± 0.89a 35.01 ± 1.16a 2.45 ± 0.88a 1.20 ± 0.05a 0.02 ± 0.01a 0.44 ± 0.03a 1812.67 ± 141.99a
PK 6.18 ± 0.04b 25.51 ± 0.30c 0.24 ± 0.01b 28.57 ± 2.25b 37.80 ± 2.95a 3.62 ± 0.57b 1.26 ± 0.03a 0.89 ± 0.04c 0.73 ± 0.02c 2377.33 ± 118.85bc
NPK 5.54 ± 0.04a 24.88 ± 0.25b 0.23 ± 0.03b 30.36 ± 1.02b 37.30 ± 6.29a 4.53 ± 0.91bc 1.43 ± 0.08b 0.94 ± 0.06d 0.70 ± 0.02bc 2241.33 ± 186.11b
MPK 6.38 ± 0.05c 27.47 ± 0.41d 0.23 ± 0.03b 28.43 ± 3.93b 39.36 ± 6.95a 5.17 ± 0.67c 1.20 ± 0.03a 0.66 ± 0.01b 0.61 ± 0.05b 2702.67 ± 169.39c
  1. Values are mean ± standard deviation (n = 6). Values within the same column followed by different lowercase letters indicate significant differences according to Tukey’s multiple comparison tests