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- Title
Sources of Phosphorus Lost from a Grazed Pasture Receiving Simulated Rainfall.
- Authors
McDowell, R. W.; Nash, D. M.; Robertson, F.
- Abstract
This article discusses the proportions of phosphorus lost from pastures due to grazing in New Zealand. The contributions of soil, pasture plants and dung to overland flow and phosphorus exports were measured using simulated rainfall. The results showed that phosphorus losses in overland flow, declined with time since grazing. The effects of treading diminished and very little dissolved organic phosphorus was lost in overland flow. They recommend strategies that maintain soil phosphorus within the optimal range for pasture-plant production and maintain soil surface properties that maximize infiltration and minimize overland flow.
- Subjects
NEW Zealand; PHOSPHORUS; RUNOFF prevention; PASTURES; GRAZING; PASTURE plants; RANGE management; PLANT-soil relationships; RAINFALL simulators
- Publication
Journal of Environmental Quality, 2007, Vol 36, Issue 5, p1281
- ISSN
0047-2425
- Publication type
Article
- DOI
10.2134/jeq2006.0347