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Table 5 Mean values of leachate amounts, concentrations and leaching loads of different forms of P for the four leaching events after slurry or mineral P application to the soil columns

From: Phosphorus leaching from loamy sand and clay loam topsoils after application of pig slurry

Soil Treatment Leachate mm Total P DRP Other-P
    Conc., mg L-1 Load, kg ha-1 Conc., mg L-1 Load, kg ha-1 Conc., mg L-1 Load, kg ha-1
Clay loam Control 17.0 a 0.15 a 0.024 a 0.02 a 0.003 a 0.13 c 0.021 b
  SP-Surf 17.7 a 2.76 c 0.482 c 1.77 d 0.304 d 0.99 e 0.178 d
  SP-Incor 17.5 a 1.39 b 0.238 b 0.64 c 0.110 c 0.74 e 0.128 d
  MinP 17.5 a 1.50 b 0.231 b 1.15 cd 0.174 cd 0.35 d 0.057 c
Loamy sand Control 18.7 a 0.23 a 0.044 a 0.17 b 0.032 b 0.06 ab 0.011 ab
  SP-Surf 17.9 a 0.17 a 0.031 a 0.11 b 0.019 b 0.07 ab 0.012 ab
  SP-Incor 15.7 a 0.20 a 0.032 a 0.10 b 0.016 b 0.11 bc 0.016 b
  MinP 16.2 a 0.18 a 0.029 a 0.13 b 0.021 b 0.05 a 0.008 a
  1. Small letters (a, b, c, d, e) indicate significant differences within each table column (α=0.05; n=3 for the control, SP-Incor and MinP treatments of the clay loam, respectively; n=4 for all the other treatments).