Journal ArticleDOI
Prediction of Soluble Phosphorus Transport in Agricultural Runoff
Andrew N. Sharpley,S. J. Smith +1 more
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Estimation de la concentration du phosphore soluble dans des eaux de ruissellement en utilisant les relations entre les cinetiques de desorption du phosphores dans le sol and la profondeur effective de cette interaction du sol avec l'eau.Abstract:
Estimation de la concentration du phosphore soluble dans des eaux de ruissellement en utilisant les relations entre les cinetiques de desorption du phosphore dans le sol et la profondeur effective de cette interaction du sol avec l'eauread more
Citations
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Journal ArticleDOI
The Concept and Need for a Phosphorus Assessment Tool
J. L. Lemunyon,R. G. Gilbert +1 more
TL;DR: In this paper, the authors developed an indexing procedure for identifying soils, landforms, and management practices that could have unfavorable impacts on water bodies because of P movement, using the characteristic of the field site, including soil erosion rates, runoff, available P soil test levels, and fertilizer and organic P application rates.
Journal ArticleDOI
How green is my river? A new paradigm of eutrophication in rivers.
TL;DR: A conceptual model of the development of eutrophic conditions in short-retention-time rivers is developed and a series of observable effects are predicted, which should result if the model is correct.
Journal ArticleDOI
Phosphorus Movement in the Landscape
TL;DR: The main factors controlling P movement are transport (runoff and erosion potential) and source factors (surface soil P and method, rate, and timing of fertilizer and animal manure applications) as discussed by the authors.
Journal Article
Minimizing surface water eutrophication from agriculture by phosphorus management
TL;DR: In this paper, the importance of minimizing P in surface waters, procedures for identifying P-sensitive water bodies, and management approaches that limit P loss is presented, along with information on the forms and sources of P.
Journal ArticleDOI
Phosphorus budgets for two contrasting grassland farming systems in the UK
TL;DR: Balance sheets of inputs, recycling of P through the soil–plant–animal pathway and outputs are presented to determine the potential rate of P accumulation in the two contrasting grassland farming systems in the UK; intensive dairy farming and extensive hill sheep production.
References
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Journal ArticleDOI
A modified single solution method for the determination of phosphate in natural waters
J. Murphy,J.P. Riley +1 more
TL;DR: In this article, a single solution reagent was described for the determination of phosphorus in sea water, which consists of an acidified solution of ammonium molybdate containing ascorbic acid and a small amount of antimony.
Journal ArticleDOI
Determination of Total, Organic, and Available Forms of Phosphorus in Soils
Roger H. Bray,L. T. Kurtz +1 more
TL;DR: Bray and KURTZ as mentioned in this paper verified the total, organically and accessible forMS of phosphorus in soil, and showed that they are available in the US.
Journal ArticleDOI
Depth of Surface Soil-runoff Interaction as Affected by Rainfall, Soil Slope, and Management
TL;DR: In this article, the effect of rainfall and soil management on the effective depth of interaction (EDI) between surface soil and runoff (the thickness of surface soil in which the degree of interaction is equal to that at the soil surface) was determined for five soils of varying physical and chemical properties under simulated rainfall.
Book ChapterDOI
The Impact of Soil and Fertilizer Phosphorus on the Environment
Andrew N. Sharpley,R. G. Menzel +1 more
TL;DR: In this paper, the impact of soil and fertilizer phosphorus on the environment is described and an increase in the amounts of soluble and particulate P transported in surface runoff have been measured after the application of fertilizer P. The detachment and transport of particulate phosphorus is also elaborated.
Journal ArticleDOI
The depth of rainfall‐runoff‐soil interaction as determined by 32P
TL;DR: In this paper, a relatively immobile tracer, 32P, was applied at 0.2 and 0.3 cm depths in duplicate soil boxes of three different soils for two separate 30-min periods.
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A modified single solution method for the determination of phosphate in natural waters
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