Fate of nitrogen in dairy factory effluent irrigated onto land
| Autor: | B.P.A. Reijnen, Keith C. Cameron, Z. Li, J. W. Barnett, John M. Russell, Hong J. Di |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
geography
geography.geographical_feature_category Denitrification biology Soil Science Plant Science biology.organism_classification Pasture Lolium perenne Agronomy Loam Lysimeter Trifolium repens Environmental science Animal Science and Zoology Leaching (agriculture) Agronomy and Crop Science Effluent |
| Zdroj: | New Zealand Journal of Agricultural Research. 45:207-216 |
| ISSN: | 1175-8775 0028-8233 |
| DOI: | 10.1080/00288233.2002.9513511 |
| Popis: | It is important to ensure that the irrigation of dairy factory effluent (DFE) onto farmland does not cause adverse effects on the wider environment, e.g., nitrate leaching and groundwater contamination, or significant emissions of nitrous oxide (N 2 O), which is a greenhouse and ozone‐depleting gas. The aim of this project was to determine the fate of nitrogen (N) from DFE applied on land. Nitrogen removals or losses by plant uptake, leaching, denitrification, volatilisation, and immobilisation were quantified on undisturbed soil lysimeters and in field studies. The soil was Templeton fine sandy loam (Typic Haplustept) and the pasture was a mixture of perennial ryegrass (Lolium perenne) and white clover (Trifolium repens). The results showed that when DFE was applied at 300 or 600 kg N ha–1 yr–1, 3.7–51.4% was taken up by the pasture, 0.2–0.3% was leached, 8.4–12.2% was lost by denitrification, 51.6–63.6% was recovered in the soil organic N, and |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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