2002
DOI: 10.2134/jeq2002.1601
|View full text |Cite
|
Sign up to set email alerts
|

Soil Testing to Predict Phosphorus Leaching

Abstract: Subsurface pathways can play an important role in agricultural phosphorus (P) losses that can decrease surface water quality. This study evaluated agronomic and environmental soil tests for predicting P losses in water leaching from undisturbed soils. Intact soil columns were collected for five soil types that a wide range in soil test P. The columns were leached with deionized water, the leachate analyzed for dissolved reactive phosphorus (DRP), and the soils analyzed for water-soluble phosphorus (WSP), 0.01 … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

15
190
5
1

Year Published

2004
2004
2021
2021

Publication Types

Select...
8

Relationship

0
8

Authors

Journals

citations
Cited by 252 publications
(211 citation statements)
references
References 30 publications
15
190
5
1
Order By: Relevance
“…Unlike previous studies [2,[8][9][10]12], there was no significant positive relationship observed between soil WSP and M3-P. McDowell and Sharpley [9], however, showed that the WSP vs. M3-P relationship improved when separating data based on soil types. Separation by location for the current study only resulted in a significant positive correlation for the Perkins location ( Figure 5).…”
Section: Relationship Between Mehlich-3 and Water-soluble Phosphoruscontrasting
confidence: 79%
See 2 more Smart Citations
“…Unlike previous studies [2,[8][9][10]12], there was no significant positive relationship observed between soil WSP and M3-P. McDowell and Sharpley [9], however, showed that the WSP vs. M3-P relationship improved when separating data based on soil types. Separation by location for the current study only resulted in a significant positive correlation for the Perkins location ( Figure 5).…”
Section: Relationship Between Mehlich-3 and Water-soluble Phosphoruscontrasting
confidence: 79%
“…In this regard, M3 and other agronomic soil tests were designed to serve as quick indicators of the Q-I status of the soil [32,56]. Many studies have found that M3-P was well correlated to WSP [2,[8][9][10]12] and that M3-P concentrations were highly influenced by soil total P concentrations. The relation of M3-P to both total and WSP is why it has been a useful indicator of plant-available P and potential for non-point P loss.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Sharpley et al (1996); Maguire and Sims (2002) and McDowell and Sharpley (2003), among others, have demonstrated that TDP concentrations in overland flow and in baseflow are positively correlated to the quantity and extractability of P in the top layer of soil. Although more complex relationships have been suggested McDowell and Sharpley, 2001), a simple linear relationship between soil test P and TDP in runoff is generally valid for soils with P concentrations below a critical P saturation threshold (Kleinman et al, 1999;Sharpley et al, 2002), and can be expressed as: , and µ a soil-specific coefficient determined from rainfall simulation (Schroeder et al, 2004) or laboratory extraction (Beauchemin et al, 1996;Pote et al, 1996) at a specific temperature.…”
Section: Component 1 Overland Flow From Non Manurecovered Soilsmentioning
confidence: 99%
“…There is strong evidence to suggest that the potential for solubilisation increases with increasing concentrations of extractable soil P. In particular, there has been substantial interest in threshold soil P concentrations, above which transfer in drainage water increases at a much greater rate (Heckrath et al, 1995). These threshold concentrations have been termed dchange pointsT, and may be used to assess the potential for P transfer from soil in runoff water (Blake et al, 2002;Daly et al, 2001;Maguire and Sims, 2002). These findings indicate that soil test P concentrations and the degree of saturation can be used to predict the risk of transfer by surface or subsurface hydrological flow paths.…”
Section: Mobilisationmentioning
confidence: 99%