Results 1 to 10 of about 350,994 (296)

Recent Advances in Photoelectrochemical Nitrate Reduction to Ammonia. [PDF]

Int J Mol Sci
Zhu K, Zhang H.
europepmc   +3 more sources

Nitrogen-­containing substances in the snow of the fall areas of the Proton launch vehicle stages in 2009–2019

Лëд и снег, 2021
The article presents analysis of the snow pollution caused by flights of the Proton launch vehicles launched from the Baikonur cosmodrome in 2009–2019. Data on 1477 snow samples collected in areas in Central Kazakhstan, south­east of Western Siberia, and ...
I. N. Semenkov, A. V. Sharapova, T. V. Koroleva, G. V. Klink, P. P. Krechetov, S. A. Lednev   +5 more
doaj   +1 more source

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

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

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

Changes of Nutritive Elements in Soils That Medium-Supplied With Phosphorus, Depending on Fertilizers Used in Cotton Agrocenosis [PDF]

BIO Web of Conferences, 2023
The aim is to increase the mobile nutrient content in the soil by applying optimal nitrogen and potassium fertilizers without the use of phosphorus fertilizers on irrigated typical gray soils moderately supplied with mobile phosphorus.
Sattarov Djurakul, Mahammadiev Samad, Makhkamova Dilafruz   +2 more
doaj   +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

Modelo numérico do transporte de nitrogênio no solo. Parte I: Desenvolvimento e teste do modelo Numerical model of nitrogen transport in the soil. Part I: Model development and test

Revista Brasileira de Engenharia Agrícola e Ambiental, 2008
Este trabalho visa realizar modificações no modelo de transporte de soluto no solo SIMASS-C, permitindo-lhe simular as concentrações do nitrato e amônio no solo, considerando-se as transformações biológicas e o efeito da temperatura e do teor de água do ...
Felizardo A. Rocha, Mauro A. Martinez, Antônio T. Matos, Reinaldo B. Cantarutti, Joseane O. da Silva   +4 more
doaj   +1 more source

Diurnal Patterns in Solute Concentrations Measured with In Situ UV-Vis Sensors: Natural Fluctuations or Artefacts?

Sensors, 2020
In situ spectrophotometers measuring in the UV-visible spectrum are increasingly used to collect high-resolution data on stream water quality. This provides the opportunity to investigate short-term solute dynamics, including diurnal cycling.
Suzanne R. Jacobs, Björn Weeser, Mariana C. Rufino, Lutz Breuer   +3 more
doaj   +1 more source