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Table 5 Relative fertilizer efficiencies (FE) and P use efficiencies (PUE)

From: Potential of three microbial bio-effectors to promote maize growth and nutrient acquisition from alternative phosphorous fertilizers in contrasting soils

P fertilizer Abbr. 1-Buus (Switzerland) 2-Castel Volturno (Italy) 3-Humpolec (Czech R.) 4-Lukavec
(Czech R.)
5-Vörden (Germany) 6-Taastrup (Denmark)
FE PUE FE PUE FE PUE FE PUE FE PUE FE PUE
(% of TSP) (% of TSP) (% of TSP) (% of TSP) (% of TSP) (% of TSP) (% of TSP) (% of TSP) (% of TSP) (% of TSP) (% of TSP) (% of TSP)
Negative control P0 0bc 0c 0d 0d 0a 0a 0b 0b 0d 0c 0c n.a.
Triple super phosphate TSP 100a 100a 100a 100a 100a 100a 100a 100a 100a 100ab 100a n.a.
Rock phosphate RP −28c −27c 79b 81ab −70.1a 7a 30b 28b 6cd 11 c n.a. n.a.
Fresh digestate FrDi 76a 74ab n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a.
Composts Comp-CH, Comp-DE 54ab 48b n.a. n.a. n.a. n.a. n.a. n.a. 55b 84 ab n.a. n.a.
Composted cow manure C-MComp n.a. n.a. 28c 60bc n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a.
Composted horse manure H-MComp n.a. n.a. 2d 21cd n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a.
Sewage sludges SS-DE, SS-DK n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. 16cd 21c 49b n.a.
Sewage sludge ashes SSA-DE, SSA-DK n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. 20cd 22c 45b n.a.
P-enriched BOF slag LSD/SSA n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. 95 a 59b n.a. n.a.
  1. The efficiencies are calculated for the BE0 treatments only. Efficiencies are calculated relative to TSP as the positive control (see “Methods” section for details). For each column, different letters after mean values represent significantly different means (Tukey’s test, P < 0.05)
  2. n.a. means not applicable