Effects of different treatments of cattle slurry manure on water-extractable phosphorus
| Autor: | R.G.M. de Goede, E.J.M. Temminghoff, L. Chapuis-Lardy |
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| Předmět: |
animal manure
Euromestmix® runoff phosphorus netherlands Plant Science nitrogen AMENDEMENT DU SOL DISSOLUTION dairy cows phosphorus Water pollution water pollution mestverwerking treatment cattle manure chemische eigenschappen Soil Biology PE&RC losses behandeling eutrophication strategies BETAIL ENGRAIS ORGANIQUE cattle slurry additives excretion POLLUTION DES EAUX CONTINENTALES management fosfor Bodemscheikunde en Chemische Bodemkwaliteit chemistry.chemical_element readily soluble phosphorus Development soil recovery Animal science Dry matter Bodembiologie WIMEK Nutrient management solubility Phosphorus PHOSPHORE oplosbaarheid Manure manure treatment EUTROPHISATION Agronomy chemistry nutrient management Soil water Slurry waterverontreiniging rundveedrijfmest Animal Science and Zoology toevoegingen rundveemest Eutrophication Agronomy and Crop Science Soil Chemistry and Chemical Soil Quality chemical properties Food Science |
| Zdroj: | Scopus-Elsevier ResearcherID Netherlands Journal of Agricultural Science 51 (2003) 1-2 Netherlands Journal of Agricultural Science, 51(1-2), 91-102 |
| ISSN: | 0028-2928 |
| Popis: | Cattle slurry manure applied to land increases the risk of phosphorus (P) movement to surface waters, which may lead to eutrophication. The water-extractable fraction of P in slurry manure is correlated with P concentration in runoff from soils amended with slurry smanure, and thus is an effective indicator of environmental P loss. We evaluated the water-extractable P (WEP) and readily soluble P (RSP; i.e., P extractable in a single water extract) contents in slurry manure from nine farms. On some farms, the additive Euromestmix® (MX) is used to complex N-compounds in the slurry manure, but the effect of MX on P in the slurry manure is not known. We also focused on methodological factors affecting the measurement of P in slurry manure. Drying the slurry manure before analysis decreased WEP and RSP contents. Dilution of slurry manure by varying the dry matter-to-distilled water ratio increased the water-extractable fractions. Analysis of calcium and magnesium contents in water showed that these minerals are involved in the release of P in water. Total RSP content of slurry manures from the nine farms ranged from 1.83 to 4.06 mg P per g dry matter. A substantial portion of total P in the slurry manure occurred in the water-extractable (46–71%) and the readily soluble P fractions (24–51%). The addition of MX tended to decrease the readily soluble inorganic P content of slurry manures. |
| Databáze: | OpenAIRE |
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