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Cited by 375

The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.

Evaluation of Mehlich 3 as an Agri‐Environmental Soil Phosphorus Test for the Mid‐Atlantic United States of America

Sims, J. T., Maguire, R. O., Leytem, A. B., Gartley, K. L., Pautler, M. C.·2002·Soil Science Society of America Journal
DOI 10.2136/sssaj2002.2016
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Abstract

Laws and guidelines limiting P applications to cropland based on soil P exist in the Mid‐Atlantic USA because of water quality concerns. We evaluated Mehlich 3 (M3) as an environmental soil P test using 465 soils typical to the Mid‐Atlantic region and found M3‐P accurately predicted water soluble P (WSP), desorbable P (Fe oxide strip P [FeO‐P]), and total sorbed P (oxalate P). The M3‐P saturation ratio (M3 [P/(Al+Fe)]) was linearly related to the well‐established oxalate P saturation method (DPS ox ) and a M3 [P/(Al+Fe)] range of 0.10 to 0.15 corresponded to reported environmental limits for DPS ox (25–40%). Rainfall simulation and column leaching studies showed M3 [P/(Al+Fe)] predicted runoff and leachate P concentrations better than M3‐P. We suggest consideration of the following approach now used in Delaware for agri‐environmental interpretation of M3‐P and M3 [P/(Al+Fe)]: (i) Below optimum (crop response likely; M3‐P ≤ 50 mg kg −1 ; M3 [P/(Al+Fe)] < 0.06); (ii) Optimum (economic response to P unlikely, recommendations for P rarely made; M3‐P = 51–100 mg kg −1 ; M3 [P/(Al+Fe)] = 0.06–0.11); (iii) Above Optimum (soil P will not limit crop yields, no P recommended; M3‐P > 100 mg kg −1 ; M3 [P/(Al+Fe)] > 0.11); (iv) Environmental (implement improved P management to reduce potential for nonpoint P pollution—in Delaware M3‐P > 150 mg kg −1 ; M3 [P/(Al+Fe)] > 0.15 is now used). (v) Natural Resource Conservation (no P applied even if the potential water quality impact is low to conserve P, a finite natural resource).

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Metadata

Authors
Sims, J. T., Maguire, R. O., Leytem, A. B., Gartley, K. L., & Pautler, M. C.
Venue
Soil Science Society of America Journal
Publisher
Wiley
Published
2002-11
Volume
66
Issue
6
Pages
2016-2032
ISSN
  • 0361-5995 (ISSN-L)
  • 1435-0661
DOI
10.2136/sssaj2002.2016
OpenAlex
W2065688580
Cited by
375
References
26
FWCI
11.10
Type
journal article
Language
en
Open access
closed

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