soil samples
Application of multivariate calibration and artificial intelligence in the analysis of infrared spectra to quantify organic matter in soil samples.
... APPLICATION OF MULTIVARIATE CALIBRATION AND ARTIFICIAL INTELLIGENCE IN THE ANALYSIS OF INFRARED SPECTRA TO QUANTIFY ORGANIC MATTER IN SOIL SAMPLES. In this paper studies based on Multilayer Perception ...
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Metal concentrations measured in surface soil samples collected on Sepetiba Bay watershed, Rio de Janeiro, Brazil
... 05 soil samples were collected at each sampling stations preliminary identified at Hydrographic basin of Sepetiba ...Duplicate soil samples (depth 0 – 20 cm) were collected along the sampling ...
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Aggregate breakdown and dispersion of soil samples amended with sugarcane vinasse
... ABSTRACT: Soil aggregation is a very complex issue related to important soil attributes and ...of soil samples amended with sugarcane vinasse were evaluated using ultrasonic ...fertilizer. ...
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ORGANIC SULFUR OXIDATION TO SULFATE IN SOIL SAMPLES FOR TOTAL SULFUR DETERMINATION BY TURBIDIMETRY
... the soil occurs in two basic forms, organic and inorganic ...in soil samples by wet (acid) and dry-ash (alkaline) oxidation ...(Montana Soil - NIST ...in soil samples and later ...
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Extraction and analysis of residual sulfentrazone and its metabolites from the soil samples: The extraction of
... Ten soil subsamples were collected at random from a depth of 0-10 ...The soil pH, residual moisture content and water holding capacity (WHC) were determined according to the methods proposed by Embrapa ...
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Retention and Solute Transport Properties in Disturbed and Undisturbed Soil Samples
... (sieved) soil samples. Experiments with undisturbed samples are uncommon, due to the difficulty of taking undisturbed samples at the size required for these ...investigated. Soil water ...
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Monitoring and health risk assessment of selected trace metals in wheat rice and soil samples
... and soil samples collected from different cities of ...in samples as Cd >Cu>Zn>Co>Mn. All wheat and nine rice samples exceeded permissible limit of ...rice samples and Zn ...
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Extraction of potato cyst nematodes from soil samples: Cobb's decanting and sieving method vs. Fenwick's method
... Dry soil is placed in a receptor with a <2 mm screen over the can and washed through into the ...Heavy soil particles fall to the bottom of the can, whereas dried cysts and light soil debris float ...
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PERFORMANCE OF A RECIPROCAL SHAKER IN MECHANICAL DISPERSION OF SOIL SAMPLES FOR PARTICLE-SIZE ANALYSIS
... The dispersion charts for mean values of sand, clay and silt extracted from the reports of Prolab/ IAC (X axis) and those determined using the RSh (Y axis) are illustrated (Figure 6: Sandy and Medium textured soil ...
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Multi-syringe flow injection system for the determination of available phosphorus in soil samples
... Considering the importance of monitoring the levels of nutrients present in soils and their avail- ability to plants, an automatic methodology is proposed based on multi-syringe flow injection analysis (MSFIA) for the ...
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ISOTOPE DETERMINATION OF SULFUR BY MASS SPECTROMETRY IN SOIL SAMPLES
... Different soil types with sandy and clayey texture, were used to evaluate the total S determination method (Rossete et ...2008a). Soil samples were collected from the surface horizon (0-20 cm), at ...
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Validation of a liquid chromatography ultraviolet method for determination of herbicide diuron and its metabolites in soil samples
... The limits of detection (LOD) and quantifi- cation (LOQ) of diuron and its metabolites were estimated considering a signal-to-noise (S/N) ratio of 3 and 10, respectively, according to the Interna- tional Committee on ...
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DIVERSITY AND EFFICIENCY OF Bradyrhizobium STRAINS ISOLATED FROM SOIL SAMPLES COLLECTED FROM AROUND Sesbania virgata ROOTS USING COWPEA AS TRAP SPECIES
... Origin of strains and culture characteristics Eight Bradyrhizobium strains from the municipalities of Nepomuceno and Ribeirão Vermelho in southern Minas Gerais (Florentino, 2007; Florentino et al., 2009) were analyzed. ...
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Calibration of a soil moisture sensor with disturbed and undisturbed soil samples from Bahia
... to soil moisture measurement and to evaluate the performance of the CS616 sensor in the calibration of disturbed and undisturbed soil ...Disturbed samples were collected in São Gabriel/BA, six ...
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Adaptations of a Mobile Lab for Analysis of Th-232 in Soil Samples Using Well-Type NaI (Tl) Scintillation Gamma Spectrometry
... in soil samples with the scintillation gamma spectrometry technique [2], including well-type NaI (Tl) scintillation detectors with characterization response, resolution and efficiency in the 3000 keV energy ...
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Method for preservation of the fungicide mancozeb in soil samples.
... METHOD FOR PRESERVATION OF THE FUNGICIDE MANCOZEB IN SOIL SAMPLES. The influence of temperature, storage time and the addition of hydrochloride L-cysteine in the preservation of the fungicide mancozeb was ...
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MATERIALS AND METHODS Soil samples
... The independent sample t-test was performed to test the significant difference between means using the statistical software, SPSS 10.0.5J (SPSS Japan Inc., Tokyo). To compare discrimination power of the methods, Wilk’s ...
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Biodegradation of PP and PE blended with PHBV in soil samples
... the soil with an a-PHB/n-PHB blend after 42 and 70 days, an increase in the number of bacteria has been observed; and in the soil with PLLA and a-PHB/PLLA films, there have been no changes were observed in ...
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NORM in soil and sludge samples in Dukhan oil Field, Qatar state
... 25 samples from Dukhan oil field were calculated for each samples are summarized in Table 1 and Figure ...investigated soil samples which have normal activity of Ra-226, and shows that the ...
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MATERIALS AND METHODS Soil and rhizosphere samples
... many samples in parallel, a miniaturization of the protocol was ...our soil samples, the RNA obtained was frequently ...the soil, while the addition of isopropanol or ethanol directly to ...of ...
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