Results 21 to 30 of about 5,332 (233)

Substitution of Clay Content for P-Remaining as an Index of the Phosphorus Buffering Capacity for Soils of Rio Grande do Sul

Revista Brasileira de Ciência do Solo, 2016
Mehlich-1 soil extract is currently used in Rio Grande do Sul (RS) and Santa Catarina (SC) States, in Brazil, to evaluate soil phosphorus available to plants and Mehlich-1 is sensitive to soil buffering capacity.
Douglas Antonio Rogeri, Clesio Gianello, Leandro Bortolon, Magno Batista Amorim   +3 more
doaj   +1 more source

Determinação de Fe, Zn, Cu e Mn extraídos do solo por diferentes extratores e dosados por espectrofotometria de emissão ótica em plasma induzido e espectrofotometria de absorção atômica Determination of soil-extracted Fe, Zn, Cu and Mn by different extractors by inductively coupled plasma optical emission spectrometry and atomic absorption spectrometry

Revista Brasileira de Ciência do Solo, 2007
Para aumentar a precisão nas análises químicas de fertilidade do solo e dosar simultaneamente vários elementos, alguns laboratórios vêm optando pelo uso da técnica da espectrofotometria de emissão ótica em plasma induzido (ICP), em detrimento da técnica ...
João José de Miranda Milagres, Víctor Hugo Alvarez V., Reinaldo Bertola Cantarutti, Júlio César Lima Neves   +3 more
doaj   +1 more source

Wayne E. Sabbe Arkansas Soil Fertility Studies 2017 [PDF]

, 2017
Rapid technological changes in crop management and production require that the research efforts be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops.
Slaton, Nathan A.
core   +7 more sources

Quantificação do fósforo disponível por extrações sucessivas com diferentes extratores em Latossolo Vermelho distroférrico

Revista Brasileira de Ciência do Solo, 2002
A determinação do fósforo potencialmente disponível por meio dos extratores químicos é dificultada em solos de carga variável, uma vez que existem diversos graus de energia de ligação com os colóides.
L. C. Gatiboni, J. Kaminski, D. S. Rheinheimer, A. Saggin   +3 more
doaj   +1 more source

Phosphorus Sorption Capacity and Its Relationships With Soil Properties Under Podzolic Soils of Atlantic Canada

Frontiers in Soil Science, 2022
Repetitive long-term fertilizer application leads to phosphorus (P) accumulation in agricultural soils. This can pose environmental risks if the soil’s phosphorus storage capacity is not well understood and considered when planning nutrient management ...
Amana Jemal Kedir, Amana Jemal Kedir, Judith Nyiraneza, Kelly Anne Hawboldt, David Bruce McKenzie, Adrian Unc, Adrian Unc, Adrian Unc   +7 more
doaj   +1 more source

Manganese and zinc in acidic agricultural soils from Central Spain: Distribution and phytoavailability prediction with chemical extraction tests [PDF]

, 2009
The extractability and distribution of manganese (Mn) and zinc (Zn) were evaluated in acidic agricultural soils from Central Spain. Both single (0.1 M hydrochloride [HCl] and 0.05 M ethylenediaminetetraacetate [EDTA]) and sequential extraction procedures
López Valdivia, Luis Manuel, Novillo Carmona, Jesus, Obrador Pérez, Ana Francisca, Rico Selas, M.Isabel, Álvarez Álvarez, José Manuel   +4 more
core   +2 more sources

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

Avaliação da disponibilidade de manganês e ferro em solos pelo uso do método modificado da resina de troca iônica Evaluation of manganese and iron availability in soils by a modified ion exchange resin method

Revista Brasileira de Ciência do Solo, 2004
A avaliação do método modificado da resina de troca de íons para extração de Mn e Fe dos solos foi o objetivo desta pesquisa. Foram utilizadas 44 amostras de solo, cujos teores de Mn variaram de baixos a altos e de Fe de médios a altos.
C. A. Abreu, B. van Raij, M. F. Abreu, A. Paz Gonzalez   +3 more
doaj   +1 more source

Determining Mehlich‐3 and DTPA extractable soil zinc optimum economic threshold for maize

Soil Use and Management, 2020
Abstract Maize ( Zea mays L.) is one of the most susceptible crops to zinc (Zn) deficiency. However, in much of the world, soil Zn tests are poorly calibrated, and thus determining a critical soil test, level for Zn is challenging.
Nicolás Martínez Cuesta, Nicolás Wyngaard, Hernán Saínz Rozas, Nahuel Reussi Calvo, Walter Carciochi, Mercedes Eyherabide, Juan Cruz Colazo, Miriam Barraco, Elizabeth A. Guertal, Pablo Barbieri   +9 more
openaire   +2 more sources

Is Mehlich 3 soil extraction a suitable screening method for determination of some risk elements?

Plant, Soil and Environment, 2021
Legislation limits for risk elements (As, Be, Cd, Co, Cr, Cu, Ni, Pb, V, Zn) in agricultural soil in the Czech Republic are given for the content of elements extracted by aqua regia. This extraction is time consuming and environmentally unfriendly.
Stanislav Malý, Jiří Zbíral, Eva Čižmárová   +2 more
doaj   +1 more source