Results 31 to 40 of about 1,437 (175)

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

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

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

USPOREDBA METODA AA I MEHLICH 3 ZA EKSTRAKCIJU KALCIJA I MAGNEZIJA IZ TALA ISTOČNE HRVATSKE

Poljoprivreda, 2019
Kalcij i magnezij pripadaju skupini zemnoalkalijskih metala značajno zastupljenih u zemljinoj litosferi, odnosno skupini umjereno pokretnih makrohraniva koji imaju važnu ulogu u ishrani bilja.
Božica Japundžić-Palenkić, Vladimir Zebec, Nataša Romanjek Fajdetić, Mihaela Blažinkov, Slavica Antunović, Domagoj Rastija   +5 more
doaj   +1 more source

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

Boron extraction and vertical mobility in Paraná State oxisol, Brazil Extração e mobilidade vertical de boro em latossolo vermelho eutroférrico no Estado do Paraná

Revista Brasileira de Ciência do Solo, 2009
The deficiency or excess of micronutrients has been determined by analyses of soil and plant tissue. In Brazil, the lack of studies that would define and standardize extraction and determination methods, as well as lack of correlation and calibration ...
Waldemar de Oliveira Neto, Antonio Saraiva Muniz, Maria Anita Gonçalves da Silva, Cesar de Castro, Clovis Manuel Borkert   +4 more
doaj   +1 more source

Establishment Limitations of Sensitive Target Species Potentilla alba L. in Grasslands Restored on Arable Land

Land Degradation &Development, EarlyView.
ABSTRACT Species in grasslands restored from former arable land have multiple obstacles when establishing. Understanding whether these limitations stem from soil chemical or microbial differences could help to create suitable environments for specific target and other species with similar requirements.
Epp Maria Lillipuu, Tomáš Cajthaml, Jan Frouz, Ondřej Mudrák   +3 more
wiley   +1 more source

Improving the Extraction Process of Mehlich 3 Method for Calcareous Soil Nutrients

Agronomy, 2022
Soil nutrient testing is an effective way to uncover soil nutrient status. However, the conventional testing method (CT method) and Mehlich 3 method (M3 method) demand long-time consumption, tedious testing steps, high testing cost, dangerous chemicals contained in extractant, etc.
Changqing Li, Shuo Wang, Mengyu Sun, Dongxiao Li, Huasen Xu, Liangyu Zhang, Cheng Xue, Wenqi Ma, Zhimei Sun   +8 more
openaire   +2 more sources

Assessing Soil and Management Quality Indexes in A Rural Watershed Under Long‐Term No‐Tillage in Southern Brazil

Land Degradation &Development, EarlyView.
ABSTRACT Soil quality assessment is essential to detect management failures and prevent land degradation in agricultural systems. No‐tillage system (NTS) is a conservation management widely adopted in Brazil, but its effectiveness is compromised when adherence to the core principles of crop rotation and ground cover is not complete, and basic ...
Edson Lucas Camilo, Miguel David Fuentes‐Guevara, Renata Alessandra Martins Borecki, Leandro Rampim, Cristiano Andre Pott, Marcelo Marques Lopes Muller   +5 more
wiley   +1 more source

Implementing potential climate‐smart practices through diverse partnerships

PLANTS, PEOPLE, PLANET, EarlyView.
Climate change is one of the greatest threats to society, negatively impacting agriculture and crop yields. Globally, agriculture is also one of the largest greenhouse gas (GHG) emitting sectors. Climate‐smart practices that are developed through diverse partnerships with scientists and practitioners are needed to decrease GHG emissions. We implemented
Kristina J. Bartowitz, Justin M. Mathias, Eric S. Walsh, Laurel M. Lynch, Chloe Arthaud, Stefanie Krantz, Tara W. Hudiburg   +6 more
wiley   +1 more source