Proceedings of the New Zealand Grassland Association · 2008
Phosphorus, nitrogen and sediment losses from irrigated cropland and pasture grazed by cattle and sheep
Mcdowell, R., Houlbrooke, D.
Abstract
Grazing forage crops during winter can lead to soil physical damage and contaminant losses especially on Pallic soils prone to compaction and structural degradation. A site in North Otago (Timaru silt loam) with 2 years sheep and cattle grazing on winter forage crops and pasture was used to measure phosphorus (P) and nitrogen (N) losses in sub-surface (leachate from shallow lysimeters) flow and P losses in overland flow. Keywords: phosphorus, nitrogen, sediment, irrigation, overland flow, treading, grazing, pasture, crop land
Findings
What changed what, as the paper reports it. Grouped by the measured property. The largest groups are open; open the others as you need them.
total P loss in overland flow
↑ 33
- increase
cattle-grazed winter forage crop vs. sheep-grazed winter forage cropsignificant · 2007–2008 measurement period · North Otago, Timaru silt loam · Annual overland totalP, cattle versus sheep foragecropland; approximate means printedabstract, significance results andFig2; not wholeprofileN/P budget.
Similar papers
Surface runoff, subsurface drainflow and soil erosion as affected by tillage in a clayey Finnish soil
Turtola, Alakukku & Uusitalo · 2008 · Agricultural and Food Science
5 shared concepts
12 findings1 site
Soil Erosion Control and Moisture Conservation Using Contour Ridge Tillage in Bougouni and Koutiala, Southern Mali
Traore & Birhanu · 2019 · Journal of Environmental Protection
4 shared concepts
12 findings2 sites
No difference in nitrate leaching between digestates and untreated cattle slurry over eight years of organic arable farming
Diener et al. · 2026 · Nutrient Cycling in Agroecosystems
4 shared concepts