Phosphorus Speciation and Sorption‐Desorption Characteristics in Heavily Manured Soils

  title={Phosphorus Speciation and Sorption‐Desorption Characteristics in Heavily Manured Soils},
  author={Zhengxia Dou and Charles F Ramberg and John D. Toth and Y Wang and Andrew N. Sharpley and Sue Boyd and Chengrong Chen and D. J. Williams and Zhihong Xu},
  journal={Soil Science Society of America Journal},
Managing heavily manured soils for decreased P loss to waters requires improved understanding of the chemical and sorption-desorption characteristics of P in these soils. We used soils from agricultural fields receiving =8 yr of dairy, poultry, swine manure or spent mushroom compost for the determination of P functional groups in NaOH-EDTA extracts by solution 31P nuclear magnetic resonance (NMR) spectroscopy, degree of P saturation (DPS), and P sorption-desorption isotherms. The 31P NMR… 

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