Fig. 1
From: Effect of bioeffectors and recycled P-fertiliser products on the growth of spring wheat
Normalised aboveground biomass of wheat plants in the HK Kalke (a), UCPH (b, c) and CULS (d, e) experiments. The data are normalised by dividing by the mean of the control treatment (no P fertiliser and BE0) in each experiment and in each of the two soils in d and e. The following P fertilisers were added in the experiments: no P fertiliser (Control), triple superphosphate (TSP), superphosphate (SP), Thomas phosphate (Thph), sewage sludge (SS), sewage sludge ash (SSA), compost of sewage sludge and garden/park waste (Comp), P-enriched steelmaking slag (LDS/SSA), fibre fraction of pig manure (FFPM), K2HPO4 (DKP), straw ash and wood ash. The soil was either not inoculated (BE0) or inoculated with Proradix (Pro), RhizoVital (RhVi), biological fertiliser DC (Bio-DC), Trianum P (TrP) or BactoProf (BaPr). Data in b are for four plants harvested from each pot after 32 days, while data in c are for five plants harvested after 54 days. The Humpolec soil was used in d while the Poděbrady soil was used in e