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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]