Results 11 to 20 of about 1,437 (175)

Usefulness of Mehlich-3 test in the monitoring of phosphorus dispersion from Polish arable soils. [PDF]

Environ Monit Assess, 2018
A considerable area of soils with low abundance of plant-available phosphorus and relatively low consumption of phosphorus fertilisers recorded in Poland over the last 20-25 years suggests that the dispersion of phosphates from arable soils in Poland can be low.
Szara E, Sosulski T, Szymańska M, Szyszkowska K.   +3 more
europepmc   +4 more sources

Interpretação de resultados analíticos de fósforo pelos extratores Mehlich-1 e Mehlich-3 em solos do Rio Grande do Sul Interpretation of the avalilabre phosphorus by Mehlich-1 and Mehlich-3 extractant solution in soils of the Rio Grande do Sul State, Brazil

Revista Brasileira de Ciência do Solo, 2008
As soluções extratoras multielementares possibilitam avaliar a disponibilidade de vários nutrientes de plantas no mesmo extrato; dentre estes o P merece especial atenção. As soluções Mehlich-1 (M1) e Mehlich-3 (M3) enquadram-se nesta categoria.
Leandro Bortolon, Clesio Gianello
doaj   +2 more sources

Modificações nas formas de fósforo do solo após extrações sucessivas com Mehlich-1, Mehlich-3 e resina trocadora de ânions Alterations in soil phosphorus forms after successive extractions with Mehlich-1, Mehlich-3 and anion exchange resin methods

Revista Brasileira de Ciência do Solo, 2005
O fósforo encontra-se no solo em diversas formas, que variam de acordo com a natureza química dos compostos a que está ligado e à energia de ligação com estes.
Luciano Colpo Gatiboni, João Kaminski, Danilo Rheinheimer dos Santos   +2 more
doaj   +2 more sources

Sulphur status in agricultural soils determined using the Mehlich 3 method [PDF]

Plant, Soil and Environment, 2018
Several sets of soil samples were chosen to demonstrate the applicability of the Mehlich 3 extractant for the determination of sulphur (S) in soils.
Jiří ZBÍRAL, Michaela SMATANOVÁ, Pavel NĚMEC   +2 more
doaj   +2 more sources

P-chromophore stability of Mehlich-1 and Mehlich-3 under Braga & Defelipo or Murphy & Riley dosing methods

Revista Brasileira de Ciência do Solo
The performance of colorimetric methods for P quantification has been overlooked by researchers for decades. We investigated the performance of two blue colorimetric methods for P quantification, Braga and Defelipo (B&D) and Murphy and Riley (M&R), using
Denison Queiroz Pogorzelski, Wedisson Oliveira Santos, Gabriel Grossi Pimentel, Fabiane Carvalho Ballotin, Patricia Cardoso Matias, Leonardus Vergütz   +5 more
doaj   +3 more sources

A Discussion on Mehlich-3 Phosphorus Extraction from the Perspective of Governing Chemical Reactions and Phases: Impact of Soil pH

Agriculture (Switzerland), 2018
Mehlich-3 (M3) is one of the most common agronomic and environmental phosphorus (P) extractants for determining P fertilizer requirements and the potential for non-point source pollution.
Chad J Penn, D Brian Arnall, James J Camberato   +2 more
exaly   +3 more sources

Site-Specific Mehlich 3-P Recommendations for Florida’s Sandy Soils

Communications in Soil Science and Plant Analysis
In 2010, the Mehlich 3 (M3) soil extractant replaced Mehlich 1 (M1) as the official soil test for Florida. While a linear expression was initially established to reasonably estimate M3-P values based on M1-P recommendations for acid-mineral soils in Florida, Florida farmers have been skeptical of revised P recommendations and reported lower yields when
Vimala D Nair, Gabriel Maltais-Landry, Lynn E Sollenberger   +2 more
exaly   +2 more sources

Do we properly quantify P from Mehlich 1 or Mehlich 3 extracting solutions?

, 2022
Abstract Aims The performance of colorimetric methods for P quantification is usually overlooked by researchers and not suitable to errors. Here, we investigated the performance of two blue colorimetric methods for P quantification, Braga & Defelipo (1974) (B&D) and Murphy & Riley (1962) (M&R), using two commonly soil P ...
Denison Pogorzelski, Wedisson Oliveira Santos, Gabriel Grossi Pimentel, Patrícia Cardoso Matias, Leonardus Vergutz, Fabiane Carvalho Ballotin   +5 more
openaire   +1 more source

Interlaboratory Validation of the Mehlich 3 Method as a Universal Extractant for Plant Nutrients [PDF]

Journal of AOAC INTERNATIONAL, 2009
Abstract The Mehlich 3 (M3) method is widely used to extract plant-available phosphorus from soil over a wide range of pH values. The method is also used by many laboratories to determine multiple plant-available nutrients simultaneously.
Jackie L, Schroder, Hailin, Zhang, Jaben R, Richards, Mark E, Payton   +3 more
openaire   +2 more sources

Disponibilidade de zinco para mudas de eucalipto em solos de Cerrado

Revista Brasileira de Ciência do Solo, 2012
No Brasil, com a expansão da silvicultura clonal, o plantio de materiais genéticos mais produtivos e exigentes nutricionalmente tem aumentado o aparecimento de sintomas de deficiência de micronutrientes, principalmente de B, e, mais recentemente, de Cu e
Fernando Antonio Vieira Rodrigues, Nairam Félix de Barros, Júlio César Lima Neves, Víctor Hugo Alvarez V, Roberto Ferreira Novais   +4 more
doaj   +1 more source