Results 41 to 50 of about 1,261,463 (391)

The interpretation of spikes and trends in concentration of nitrate in polar ice cores, based on evidence from snow and atmospheric measurements [PDF]

, 2008
Nitrate is frequently measured in ice cores, but its interpretation remains immature. Using daily snow surface concentrations of nitrate at Halley (Antarctica) for 2004 - 2005, we show that sharp spikes (> factor 2) in nitrate concentration can occur ...
Bauguitte, S.J.-B., Jones, Anna E., Salmon, Rhian Anya, Wolff, Eric   +3 more
core   +3 more sources

The Impact of Dissolved Nitrate and Phosphate on Maximum Growth Rate and Carrying Capacity of Oscillatoria in Intensive Shrimp (Litopenaeus vannamei) Farming Pond Situbondo, East Java, Indonesia

Journal of Experimental Life Science, 2017
The aims of study are to analyze the effect of dissolved nitrate and phosphate content of the intensive shrimp farming pond Situbondo to maximum growth rate and carrying capacity of Oscillatoria population density in the laboratory.
Dian Aliviyanti, Suharjono Suharjono, Catur Retnaningdyah   +2 more
doaj   +1 more source

Investigation of the Sugarcane Bagasse Adsorbent Efficiency For Nitrate Removal from Agricultural Outflow Drainage [PDF]

علوم و مهندسی آبیاری, 2017
Nitrate is a non-concentrated source of environmental pollution caused by fertilizer overdose in agricultural wastewater. These poisonous compounds are accumulated in aquatics tissues specially fishes and affect their reproduction and procreation ability.
Milad Hashemi, Abed Ali Naseri, Afshin Takdastan   +2 more
doaj   +1 more source

Differential Metabolic Responses of Lettuce Grown in Soil, Substrate and Hydroponic Cultivation Systems under NH₄⁺/NO₃⁻ Application

Metabolites, 2022
Nitrogen (N) is an essential element for plant growth and development. The application of a balanced and optimal amount of N is required for sustainable plant yield.
Muhammad Khalid Hameed, Wajid Umar, Ali Razzaq, Tariq Aziz, Muhammad Aamer Maqsood, Shiwei Wei, Qingliang Niu, Danfeng Huang, Liying Chang   +8 more
doaj   +1 more source

Global perspective of nitrate flux in ice cores [PDF]

, 1995
The relationships between the concentration and the flux of chemical species (Cl-, NO3 - , SO42-, Na +, K + , NH4 + , Mg 2+ , Ca 2+) versus snow accumulation rate were examined at GISP2 and 20D in Greenland, Mount Logan from the St.
Dibb, Jack E., Linder, Ernst, Mayewski, Paul A, Morrison, Michael, Talbot, R., Twickler, Mark S, Whitlow, Sallie I, Yang, Qinzhao   +7 more
core   +3 more sources

Increased Arctic NO₃⁻ Availability as a Hydrogeomorphic Consequence of Permafrost Degradation and Landscape Drying

Nitrogen, 2022
Climate-driven permafrost thaw alters the strongly coupled carbon and nitrogen cycles within the Arctic tundra, influencing the availability of limiting nutrients including nitrate (NO3−).
Carli A. Arendt, Jeffrey M. Heikoop, Brent D. Newman, Cathy J. Wilson, Haruko Wainwright, Jitendra Kumar, Christian G. Andersen, Nathan A. Wales, Baptiste Dafflon, Jessica Cherry, Stan D. Wullschleger   +10 more
doaj   +1 more source

Iso-osmotic regulation of nitrate accumulation in lettuce (Lactuca sativa L.) [PDF]

, 2010
Concerns about possible health hazards arising from human consumption of lettuce and other edible vegetable crops with high concentrations of nitrate have generated demands for a greater understanding of processes involved in its uptake and accumulation ...
Abd-Elmoniem E. M, Barker A. V., Behr U., Breteler H., Burns I. G., Cantliffe D. L., Corré W. J., Demšar J., Drews M., Drews M., Graves C. J., Gunes A., Houba V. J. G., Ian G. Burns, Kefeng Zhang, Marschner H., Marschner H., Mary K. Turner, McCall D., McCall D., Mott R. L., Nobel P. A., Raab T. K., Raynal Lacroix C., Rodney Edmondson, Savvas D., Scaife A., Seginer I., Seginer I., Steingröver E. G., Stienstra A. W., Van Der Boon J., Wyn Jones R. G., Zhang K.   +33 more
core   +1 more source

Transport and reduction of nitrate in clayey till underneath forest and arable land. [PDF]

, 2004
Transport and reduction of nitrate in a typically macroporous clayey till were examined at variable flow rate and nitrate flux. The experiments were carried out using saturated, large diameter (0.5 m), undisturbed soil columns (LUC), from a forest and ...
Eiland, F., Helstrup, T., Jensen, M.B., Jørgensen, P.R., Urup, J., Vinther, F.P.   +5 more
core   +1 more source

Aminoethyl nitrate – the novel super nitrate? [PDF]

British Journal of Pharmacology, 2009
Long‐term use of most organic nitrates is limited by development of tolerance, induction of oxidative stress and endothelial dysfunction. In this issue of the BJP, Schuhmacher et al. characterized a novel class of organic nitrates with amino moieties (aminoalkyl nitrates).
openaire   +3 more sources

Longitudinal transformation of nitrogen and carbon in the hyporheic zone of an N-rich stream: A combined modelling and field study [PDF]

, 2011
A combined modelling and field study approach was used to examine biogeochemical functioning of the hyporheic zone in two gravel bars in an N-rich fourth-order stream (River Hers, south-west France).
Delmotte, Sébastien, Gérino, Magali, Namour, Philippe, Peyrard, Dimitri, Sanchez-Pérez, José Miguel, Simeoni-Sauvage, Sabine, Vervier, Philippe   +6 more
core   +2 more sources