Results 21 to 30 of about 1,261,463 (391)

Measurement and Comparison of Nitrate, Nitrite and Toxic Elements in First Harvest and Re-harvest Rice [PDF]

مجله پژوهش‌های علوم و صنایع غذایی ایران, 2023
Introduction Rice as a staple food, especially in Asian countries, can be a major source of heavy metals. Heavy metals also enter the soils where crops grow naturally and / or through human activities.
Z. Soltan Touyeh, Sh. Dehghan Abkenar, N. Khakipour   +2 more
doaj   +1 more source

Physico-Chemical Analysis of Drinking Water from the Town of Bârlad, Vaslui County

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2022
The quality of drinking water was investigated in two localities from Vaslui county (Bârlad and Văleni) by comparison with a sample from Galați county.
Gina Genoveva ISTRATE, Irina-Nicoleta PENIȘOARĂ   +1 more
doaj   +1 more source

Effect of an agri-environmental measure on nitrate leaching from a beef farming system in Ireland [PDF]

, 2015
peer-reviewedAgricultural nitrogen (N) management remains a key environmental challenge. Improving N management is a matter of urgency to reduce the serious ecological consequences of the reactive N.
Brophy, C., Carton, Owen T., Connolly, John, Drennan, Michael J, Jahangir, Mohammad M. R., Lenehan, J.J., Richards, Karl G.   +6 more
core   +1 more source

Dynamic modeling of nitrogen losses in river networks unravels the coupled effects of hydrological and biogeochemical processes [PDF]

, 2009
The importance of lotic systems as sinks for nitrogen inputs is well recognized. A fraction of nitrogen in streamflow is removed to the atmosphere via denitrification with the remainder exported in streamflow as nitrogen loads.
Alexander, Richard B., Bohlke, John Karl, Boyer, Elizabeth W., David, Mark B., Harvey, Judson W., Mulholland, Patrick J., Seitzinger, Sybil P., Tobias, Craig R., Tonitto, Christina, Wollheim, Wilfred M.   +9 more
core   +2 more sources

Modification of natural clinoptilolite for the nitrate removal from water media [PDF]

Journal of the Serbian Chemical Society, 2014
The natural zeolitic tuff from the Zlatokop mine (Vranjska Banja deposit) has been investigated as a starting material for obtaining a low cost adsorbent for the removal of nitrate from water media.
Pavlović Jelena B., Milenković Jelena K., Rajić Nevenka Z.   +2 more
doaj   +1 more source

Paliperidonium nitrate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2012
In the title mol-ecular salt (systematic name: 3-{2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]eth-yl}-9-hy-droxy-2-methyl-1,6,7,8,9,9a-hexa-hydro-pyrido[1,2-a]pyrimidin-4-one nitrate), C(23)H(29)FN(4)O(3) (+)·NO(3) (-), the piperidine ring displays a chair conformation and its N atom is protonated; the N-H bond is in an axial orientation.
Jingshui Ge, Yang-Hui Luo
openaire   +3 more sources

Modelo numérico do transporte de nitrogênio no solo. Parte II: Reações biológicas durante a lixiviação Numerical model of nitrogen transport in the soil. Part II: Biological reaction during leaching

Revista Brasileira de Engenharia Agrícola e Ambiental, 2008
Analisar o efeito da temperatura e umidade do solo nos processos de mineralização e nitrificação do nitrogênio e comparar as concentrações de nitrato e amônio, simuladas pelo modelo SIMASS-C, com aquelas obtidas experimentalmente, foi o objetivo que ...
Felizardo A. Rocha, Mauro A. Martinez, Antônio T. Matos, Reinaldo B. Cantarutti, Joseane O. da Silva   +4 more
doaj   +1 more source

Bacterial nitrate assimilation: gene distribution and regulation [PDF]

, 2011
In the context of the global nitrogen cycle, the importance of inorganic nitrate for the nutrition and growth of marine and freshwater autotrophic phytoplankton has long been recognized.
Andrew J. Gates, Assumpção, Caballero, Cabello, Chai, Chen, Conrado Moreno-Vivián, David J. Richardson, Flores, Forchhammer, Forchhammer, Gates, Gutierrez, Ishida, Kayumov, Koropatkin, Leigh, Li, Lin, Lledó, Llácer, M. Dolores Roldán, Moreno-Vivián, Nakano, Ogawa, Ohashi, Pawlowski, Paz-Yepes, Pino, Puerta-Fernández, Ramos, Richardson, Sanders, Shao, Shu, Shu, Stuart J. Ferguson, Swanson, Szeto, Toukdarian, Víctor M. Luque-Almagro, Weiss, Weiss, Wray, Wu   +44 more
core   +1 more source

Transporte de NO3- e NH4+ em agregados de Latossolo Vermelho com e sem atividade biológica NO3- and NH4+ transport in a typic Haplortox aggregates with and without biological activity

Revista Brasileira de Engenharia Agrícola e Ambiental, 2007
Objetivou-se, com este trabalho, avaliar a influência do tamanho dos agregados de um Latossolo Vermelho distrófico sobre as transformações e transporte do amônio e do nitrato em condições de presença e ausência de atividade biológica.
Fábio C. Coelho, Hugo A. Ruiz, Reinaldo B. Cantarutti, Gonçalo E. França   +3 more
doaj   +1 more source

Nitrate deposition to surface snow at Summit, Greenland, following the 9 November 2000 solar proton event [PDF]

, 2014
This study considers whether spikes in nitrate in snow sampled at Summit, Greenland, from August 2000 to August 2002 are related to solar proton events. After identifying tropospheric sources of nitrate on the basis of correlations with sulfate, ammonium,
Dibb, Jack E., Duderstadt, Katherine A., Jackman, Charles H., Mills, Michael J., Randall, Cora E., Schwadron, Nathan A., Solomon, Stanley C., Spence, Harlan E.   +7 more
core   +2 more sources