Skip to main content

Table 2 Shoot and root biomass, P uptake and phosphorus concentration in the shoots and roots of wheat grown in acidic soil (-a) and calcareous (-c) soil measured 35 days after sowing

From: The effect of Penicillium bilaii on wheat growth and phosphorus uptake as affected by soil pH, soil P and application of sewage sludge

  Acidic soil Calcareous soil
Treatment Biomass (g) P uptake (µg plant−1) P concentration (%) Treatment Biomass (g) P uptake (µg plant−1) P concentration (%)
Shoot C-a 0.25 ± 0.01b 581 ± 41c 0.229 ± 0.007d C-c 0.44 ± 0.00b 1486 ± 35c 0.34 ± 0.006c
CPb-a 0.19 ± 0.01b 367 ± 28c 0.196 ± 0.006e CPb-c 0.56 ± 0.03a 1704 ± 122bc 0.31 ± 0.008d
SS-a 0.64 ± 0.06a 2433 ± 234ab 0.383 ± 0.006a SS-c 0.53 ± 0.03a 1876 ± 117ab 0.35 ± 0.004bc
SSPb-a 0.73 ± 0.05a 2547 ± 178a 0.351 ± 0.003b SSPb-c 0.54 ± 0.04a 1877 ± 157ab 0.35 ± 0.007bc
TSP-a 0.67 ± 0.01a 2166 ± 64b 0.326 ± 0.007c TSP-c 0.50 ± 0.02ab 1924 ± 81ab 0.39 ± 0.004a
TSPPb-a 0.69 ± 0.02a 2276 ± 69ab 0.327 ± 0.002c TSPPb-c 0.56 ± 0.02a 2122 ± 68a 0.38 ± 0.024ab
Ref. valuesa    0.2–0.5     0.2–0.5
Root C-a 0.08 ± 0.00c 66 ± 2b 0.080 ± 0.003b C-c 0.08 ± 0.00bc 75 ± 4ab 0.094 ± 0.007bc
CPb-a 0.04 ± 0.00d 26 ± 2b 0.070 ± 0.002b CPb-c 0.11 ± 0.01a 100 ± 17a 0.090 ± 0.006c
SS-a 0.13 ± 0.02b 126 ± 27a 0.097 ± 0.006a SS-c 0.08 ± 0.01bc 84 ± 9ab 0.112 ± 0.006a
SSPb-a 0.17 ± 0.02a 159 ± 19a 0.092 ± 0.002a SSPb-c 0.09 ± 0.01ab 96 ± 8a 0.105 ± 0.007abc
TSP-a 0.15 ± 0.01ab 144 ± 22a 0.094 ± 0.006a TSP-c 0.06 ± 0.01c 64 ± 8b 0.111 ± 0.004ab
TSPPb-a 0.18 ± 0.00a 166 ± 04a 0.094 ± 0.002a TSPPb-c 0.09 ± 0.01ab 104 ± 7a 0.119 ± 0.003a
  1. Unamended control soil C, control soil with P. bilaii CPb, soil amended with sewage sludge SS, sewage sludge and P. bilaii SSPb, triple superphosphate TSP and triple superphosphate and P. bilaii TSPPb. Values are mean of four replicates ± standard error. Different letters indicate significant differences between treatments (P < 0.05)
  2. aSufficient range nutrient concentrations proposed by Mills and Jones [31]