Brazilian soils
Use of pedological maps in the identification of sensitivity of soils to acidic deposition: application to Brazilian soils
... of soils according to crystalochemical parameters (clay fraction) and physic-chemical aspects of the sorting complex (CEC and ...the Brazilian soils, elaborated using FAO Soil World Map, allowed ...
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SIMULTANEOUS MULTIELEMENT EXTRACTION WITH THE MEHLICH-1 SOLUTION FOR SOUTHERN BRAZILIAN SOILS DETERMINED BY ICP-OES AND THE EFFECTS ON THE NUTRIENTS RECOMMENDATIONS TO CROPS
... The results indicate that the simultaneous multielement extraction and determination of available P, K, Ca, Mg, Cu and Zn in soil can be evaluated with Mehlich-1 solution and inductively coupled plasma optical emission ...
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CHEMICAL CHARACTERIZATION AND INFRARED SPECTROSCOPY OF SOIL ORGANIC MATTER FROM TWO SOUTHERN BRAZILIAN SOILS
... two Brazilian soils (a Latosol and a Chernosol), in bulk samples (in situ SOM) and in HF-treated samples (SOM), was characterized by elemental analyses, diffuse reflectance (DRIFT) and transmission Fourier ...
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Carbon sequestration in clay and silt fractions of Brazilian soils under conventional
... French soils, where, in colder regions, the C reten- tion capacity tends to be greater (Angers et ...In Brazilian soils, a study about C sequestration in physical fractions collected up to ...
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Comparison of different methods for the determination of total organic carbon and humic substances in Brazilian soils
... all soils (Table 2) for the dichromate-oxidation method without heating was lower than some reported ...all soils and 81% considering only the ...in Brazilian soils is mostly underestimated by ...
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EVALUATION OF SIKORA INSTEAD OF SMP BUFFER TO ESTIMATE THE POTENTIAL ACIDITY OF BRAZILIAN SOILS
... Despite the efficiency of the Shoemaker, McLean, Pratt (SMP) buffer method in estimating soil acidity, the presence of p-nitrophenol and potassium chromate in the solution, both hazardous substances, has caused ...
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P-SORPTION AND DESORPTION IN SAVANNA BRAZILIAN SOILS AS A SUPPORT FOR PHOSPHORUS FERTILIZER MANAGEMENT
... tropical soils have a higher point of zero charge (PZC) value, resulting in more electropositive soils and therefore with higher ability to adsorb anions, such as phosphate (PARDO, GUADALIX; GARCIAS- ...
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Bioremediation of brazilian soils contaminated with used lubricating oil
... in soils, and any effect which pollution has on soil microorganisms will also affect vegetation development, ecosystem functioning and productivity (Bauer et ...
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RELATIONSHIP BETWEEN ACIDITY AND CHEMICAL PROPERTIES OF BRAZILIAN SOILS
... Although, unlike Pavan’s (1983) paper, significant correlations have not been verified among the variables associated to the soil acidity and the organic matter con- tent (Table 4), except for non-exchangeable acidity, ...
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ADDITION OF NITROGEN HAD NO EFFECT ON YIELD AND QUALITY OF APPLES IN AN HIGH DENSITY ORCHARD CARRYING A DWARF ROOTSTOCK
... deep Brazilian soils containing high organic matter in order to assure good fruit quality and yield on high-density orchards carrying dwarf rootstocks probably because the N required for tree growth and ...
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REVISITING FIELD CAPACITY (FC): VARIATION OF DEFINITION OF FC AND ITS ESTIMATION FROM PEDOTRANSFER FUNCTIONS
... 22 Brazilian soils with a wide range of texture, resulting in FC independence from W and θ i , confirming reports of three drainage studies in the ...
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IRON OXIDES IN SOILS
... weathered Brazilian soils have shown that organic matter and various iron oxides have a direct effect on P adsorption/ desorption and availability (Bortoluzzi et al, 2015; Fink et ...
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Adsorption of Cd, Cu, Ni and Zn in tropical soils under competitive and non-competitive systems
... with soils, and DF is the dilution factor (in the present case, 20 mL of solution to 2 g of ADFE, ...In soils with high Cu adsorption, the isotherm could not be fit- ted to the experimental data even in the ...
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Background levels of some trace elements in weathered soils from the Brazilian Northern region
... The Pearson correlation coefficients relating to as- sociations between the physical and chemical character- istics and the content of minerals expressed in oxide form (Table 5) revealed a strong inverse (p < 0.05) ...
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Arbuscular mycorrhizal fungal communities in soils under three phytophysiognomies of the Brazilian Atlantic Forest
... Phytophysiognomy most explained variability in spore density and five of the 13 AMF species (Tab. 3). Furthermore, variability in the most frequent AMF species (Glomus sp. 1, Glomus sp. 3, Glomus sp4 and Glomus sp2) was ...
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Braz. J. Geol. vol.45 número2
... Due to the thickness of Inceptisols and related sapro- lithes, which are normally less than 1 m thick, iniltration tests could not be realized. Very high bulk density Alisols are diicult to befound in the Federal ...
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KINETICS OF K RELEASE FROM SOILS OF BRAZILIAN COFFEE REGIONS: EFFECT OF ORGANIC ACIDS
... from soils by chemical extractants can simulate the absorption of available K by plants, providing short-term results, which allow the evaluation of K release from soil compartments, ...
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Structural and Floristic Variations in an Atlantic Subtropical Rainforest in Southern Brazil
... hydromorphic soils highly selective for most species and, in turn, they tend to present lower specie richness when compared to other ...hydromorphic soils are not predominant in the alluvial lowland areas, ...
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Causes of morphological discontinuities in soils of Depressão Central, Rio Grande do Sul State, Brazil
... contrasting soils were those with higher possibil- ity of the presence of deposited materials in their com- ...terial. Soils derived from sandstones and sediments, besides the grain size characterization, ...
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ELECTROCHEMICAL ATTRIBUTES AND AVAILABILITY OF NUTRIENTS, TOXIC ELEMENTS, AND HEAVY METALS IN TROPICAL SOILS
... a regression model to obtain the surface constants from CEC, Fe oxide, organic and inorganic carbon, and found that the model was able to predict the ad- sorption. More recently, Goldberg at al. (2005) ap- plied the CCM ...
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