Soil mixing to decrease surface stratification of phosphorus in manured soils.

  title={Soil mixing to decrease surface stratification of phosphorus in manured soils.},
  author={Andrew N. Sharpley},
  journal={Journal of environmental quality},
  volume={32 4},
Continual applications of fertilizer and manure to permanent grassland or no-till soils can lead to an accumulation of P at the surface, which in turn increases the potential for P loss in overland flow. To investigate the feasibility of redistributing surface stratified P within the soil profile by plowing, Mehlich-3 P rich surface soils (128-961 mg kg(-) in 0-5 cm) were incubated with lower-P subsoil (16-119 mg kg(-1) in 5-20 cm) for 18 manured soils from Oklahoma and Pennsylvania that had… CONTINUE READING
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