Gurpal S T, Stefan H, Peak J D. Advances in the characterization of phosphorus in organic wastes:environmental and agronomic applications[J]. Advances in A gronomy, 2006, 89 : 1-72.
[2]
Dou Z, Toth J D, Galligan D T. Laboratory procedures for characterizing manure phosphorus[J]. Environ Qual, 2000, 29:508-514.
[3]
Hedley M J, Stewart J W B, Chauhan B S. Changes in inorganic and organic soil phosphorus fraction induced by cultivation practices and by laboratory incubations[J]. Soil Sci Soc Am J, 1982, 46.970-976.
[4]
Leinweber P, Haumaier L, Zech W. Sequential extractions and 31P-NMR spectroscopy of phosphorus forms in animal manures, whole soils and particle-size separates from a densely populated livestock area in northwest Germany[J]. Biol Fertil Soils, 1997, 25 : 89-94.
[5]
Sharpley A N, Moyer B. Phosphorus forms in manure and compost and their release during simulated rainfall[J]. Envion Qual, 2000, 29:1462- 1469.
[6]
He Z, Honeycutt C W. Enzymatic characterization of organic phosphorus in animal manure[J]. Environ Qua], 2001, 30:1685-1692.
[7]
Kleinman P J A, Sharpley B G, Wolf A M. Developing an environmental manure test for the phosphorus index[J]. Communications in Soil Science and Plant Analysis, 2006, 37 (15-20) : 2137-2155.
[8]
Kleinman P J A, Sharpley A N, Wolf A M. Measureing water-extractable phosphorus in manure as indicator of phosphorus [J]. Soil Sci Soc A m J, 2002, 66: 2009-2015.
