Total Nitrogen
Determination of nitrogen forms and total nitrogen in petroleum reservoir rocks by steam distillation and the indophenol method.
... OF NITROGEN FORMS AND TOTAL NITROGEN IN PETROLEUM RESERVOIR ROCKS BY STEAM DISTILLATION AND THE INDOPHENOL ...nitrite, total exchangeable nitrogen and total nitrogen in ...
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Leaf ToTaL NiTrogeN CoNCeNTraTioN as aN iNdiCaTor of NiTrogeN sTaTus for PLaNTLeTs aNd YouNg PLaNTs of euCaLYPTus CLoNes
... leaf total N concentrations do not always mean an increase in the green color of leaves, as observed for VM-01 and ...leaf total N concentration; however, it showed lower chlorophyll meter readings because ...
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Organic carbon and total nitrogen stocks in soils of the Lena River Delta
... Most previous studies analysed carbon pools of specific regions or components of permafrost-affected soil carbon pools (e.g., Stolbovoi, 2002; Tarnocai et al., 2003; Zimov et al., 2006; Ping et al., 2008; Bliss and ...
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Limnological variables and nutritional content of submerged aquatic macrophytes in a tropical lagoon
... in total phosphorus content (p < 0.05), total nitrogen and total carbon, however, without a clear pattern between seasons and macrophytes There was a tendency to higher concentrations of P ...
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EFFLUENTS QUALITY DURING THE GROW-OUT PHASE OF THE AMAZON SHRIMP Macrobrachium amazonicum
... the participation of ten research institutions and universities from different Brazilian regions. Due to the theme’s relevance and importance and to the scantly number of research on Macrobrachium amazonicum, this ...
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DISTRIBUTION AND VERTICAL STRATIFICATION OF CARBON AND NITROGEN IN SOIL UNDER DIFFERENT MANAGEMENTS IN THE PAMPEAN REGION OF ARGENTINA
... Soil samples were collected in previously outlined homogeneous areas (2–3 ha) of each field. Composite samples contained at least 30 sub-samples from the 0–5, 5–15 or 15–30 cm soil layers, collected with an auger. ...
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Periphytic algal biomass in two distinct regions of a tropical coastal lake
... turbidity, total suspended solids, alkalinity, dissolved oxygen, water temperature, total nitrogen, nitrate, nitrite, ammonia nitrogen, total phosphorus, orthophosphate and ...
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Nutrient behavior in a highly-eutrophicated tropical estuarine system
... salinity, total dissolved solids, transparency, dissolved oxygen), whereas suspended particulate matter, chlorophyll a, phaepigments and nutrients (carbon, nitrogen and phosphorus forms) were measured in ...
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Estimation of nutrient contributions from the ocean across a river basin using stable isotope analysis
... tems, runs of salmon are thought to play a large role in the sustainability of nutrient circulation due to their contribution to mammals that incorporate MDN and disperse it across the entire river basin, with the MDN ...
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Characterization of habitats based on algal periphyton biomass in the upper Paraná River floodplain, Brazil
... Considering the relevant role played by the hydrological regime on the structure and functioning of floodplains, this study aims at characterizing different types of aquatic environments according to periphyton biomass ...
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ANAEROBIC BIODIGESTION OF MANURE FROM FINISHING PIG SUPPLEMENTED WITH RACTOPAMINE OVER DIFFERENT PERIODS
... of total (TS) and volatile solids (VS), pH, total phosphorus (total P), total nitrogen (total N) and ammoniacal nitrogen (ammoniacal N) in samples of manure, affluent and ...
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The Effects of Gap Disturbance on Soil Chemical and Biochemical Properties in a Mixed Beech – Hornbeam Forest of Iran
... carbon, total nitrogen, cation exchange capacity (CEC), phosphorus, potassium, calcium, nitrogen mineralization, microbial respiration, earthworms density and biomass of soil samples (0 – 15, 15 – 30 ...
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Estimation of Serpa cheese ripening time using multiple linear regression (MLR) considering rheological, physical and chemical data
... and total nitrogen (TN) were determined according to AOAC (1990) ...soluble nitrogen (WSN) was quantified performing an aqueous ex- traction of the N-components (Kuchroo & Fox, 1982), fol- lowed ...
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Vertical and temporal dynamics of phytoplanktonic associations and the application of index assembly in tropical semi-arid eutrophic reservoir, northeastern Brazil
... The biomass of the species and community composition varies in terms of stratification and destratification (Dantas et al., 2008; Bittencourt-Oliveira et al., 2011). In these studies, Cylindrospermopsis raciborskii ...
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Effect of a leucine-supplemented diet on body composition changes in pregnant rats bearing Walker 256 tumor
... weight. Total fat was extracted with petroleum ether using a soxlet ...for total nitrogen content using a colorimetric micro-Kjeldahl method ...collagen nitrogen was measured by the col- ...
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Effects of nitrogen fertilization on fruit quality during storage of spanish ‘piel de sapo’ melon
... and total nitrogen contents from pulp tissue were ...of nitrogen fertilization on the quality parameters analysed has been ...only total nitrogen content in fruit was affected by the ...
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SOIL AND PLANT NUTRITION - Article
... of Nitrogen by the evaluated cultivars resulted especially from the highly efficient way these cultivars were able to remobilize the absorbed Nitrogen to grain ...increased Nitrogen use efficiency ...
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Atmospheric deposition of nitrogen to the Baltic Sea in the period 1995–2006
... atmospheric nitrogen deposition into the Baltic Sea basin for the period of 12 yr: ...nual total nitrogen deposition into the Baltic Sea basin has changed from 230 Gg N in 1995 to 199 Gg N in 2006, ...
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Changes in soil quality after converting <i>Pinus</i> to <i>Eucalyptus</i> plantations in southern China
... carbon, total nitrogen, alkaline hydrolytic nitrogen, microbial biomass carbon, microbial biomass nitrogen, cellobiosidase, phenol oxidase, peroxidase and acid phosphatase activities were ...
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Total and yeast assimilable nitrogen composition in grape juices of three grapevine cultivars as affected by vineyard nitrogen fertilization
... of total nitrogen (TN), free amino nitrogen (FAN) and ammonium content in ...optimal nitrogen fertilization doses which will have positive inluence on the nitrogen compounds ...of ...
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