Estimate of soil bulk density
Pedotransfer functions to estimate bulk density from soil properties and
... dominant soil class of a mapping unit. The DEM, generated from images of the Shuttle Radar Topography Mission - SRTM (CGIAR, 2014), was processed to remove spurious cells to derive the follow- ing ...
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METHOD TO ESTIMATE SOIL MACROPOROSITY AND MICROPOROSITY BASED ON SAND CONTENT AND BULK DENSITY
... number of points. Considering that the “Soil quality kit test” does not cover macro and microporosity, a practical method for these properties is in ...difficulty of including macro and microporosity ...
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SOIL BULK DENSITY AS RELATED TO SOIL PARTICLE SIZE DISTRIBUTION AND ORGANIC MATTER CONTENT
... effect of clay content on bulk density ...with soil bulk density. Soil bulk density decreases with increasing organic carbon concentration (Bauer and Black, ...
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Soil physical and biological properties in an integrated crop-livestock system in the Brazilian Cerrado
... beginning of the 1990s, the evolution of the NTS reactivated the integration of annual cropping with livestock production (Freitas & Landers, ...from soil-plant-animal-atmosphere ...
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Laboratory measurements of nitric oxide release from forest soil with a thick organic layer under different understory types
... meter of understory area has to be covered mainly (>50%) with the respec- tive understory ...total of eight soil samples. The soil samples were air dried and then stored at 4 ◦ C until ...
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Bulk Density Prediction for Histosols and Soil Horizons with High Organic Matter Content
... characteristics of organic soils and the environmental context in which they are formed, the equations developed showed good accuracy in predicting Bd compared with already existing ...
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Response of CH4 and N2O emissions and wheat yields to tillage method changes in the North China plain.
... characteristic of the North China ...The soil is loam with 40% sand, 44% silt and 16% clay. The characteristics of the surface soil (0–20 cm) were measured as follows: pH ...6.2; soil ...
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Water retention and penetration resistance equations for the least limiting water range
... indicators of soil physical quality able to integrate soil physical parameters in a single index that can be easily measured and correlated with crop production factors (Dexter, 2004; Letey, 1985; ...
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RADICULAR DE CANA-DE-AÇÚCAR EM UM LATOSSOLO VERMELHO
... risk of experimental errors if used by different operators. Soil penetration was tested soon after a period of prolonged rainfall, when the soil water content approached field capacity, and ...
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Atributos físicos do solo na linha e entrelinha de semeadura no sistema plantio direto
... measurement of the saturated hydraulic conductivity, soil samples were placed on a suction table and submitted to the potential of -10 kPa (field ...each soil sample using a constant air load ...
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Spatial Variability of Soil Properties in Archeological Dark Earth Sites under Cacao Cultivation
... types of soil in the Amazon region include soil with an anthropogenic A-horizon, ...These soil units, known as Dark Earths, Indian Dark Earths, or Archaeological Dark Earths (ADEs), generally ...
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Greenhouse gas emissions from natural ecosystems and agricultural lands in sub-Saharan Africa: synthesis of available data and suggestions for further research
... Ministry of Science and Innovation and the Autonomous Community of Madrid for their economic support through the NEREA project (AGL2012-37815- C05-01, AGL2012-37815- C05-04), the Agrisost Project ...
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Petrophysical model for bulk density of complex lithologies
... A data set containing facies description of lithotypes as well as a set of well log measurements helps defining the volu- metric fractions of rock constituents for implementation of mine[r] ...
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DOSES OF VINASSE AND ITS EFFECTS AT THE PHYSICAL ATTRIBUTES OF RHODIC HAPLUDOX UNDER SUGAR CANE
... determination of the stability of the aggregates were used two samples with preserved structure in the form of blocks in each plot and depth, then the aggregates retained in the sieve of ...
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Soil Compaction in Sugarcane Fields Induced by Mechanization
... problem of soil compaction, especially associated with more mechanized sugarcane production, has drawn attention from both the government and private ...investigations of soil compaction using ...
5
TAMANHO DE AMOSTRAS PARA A DETERMINAÇÃO DE PARÂMETROS FÍSICOS EM PLANOSSOLO POR TOMOGRAFIA COMPUTADORIZADA
... thickness of soil samples not only de- pends on water content and bulk density, but mainly on their mass attenuation coefficients, which depend on to- tal porosity and on soil chemical ...
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STRUCTURAL CHANGES IN LATOSOLS OF THE CERRADO REGION: II – SOIL COMPRESSIVE BEHAVIOR AND MODELING OF ADDITIONAL COMPACTION
... parts of the world, the concern is great with the increase of degraded agricultural soil, which is mostly related to the occurrence of soil ...Although soil texture is recognized ...
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CARBONO ORGÂNICO DO SOLO, ESTOQUE DE CARBONO E SUA RELAÇÃO COM ATRIBUTOS FÍSICOS SOB SOLOS FLORESTAIS NA AMAZÔNIA CENTRAL
... The soil carbon under Amazonian forests has an important roles in global changing, making information on the soil content and depths of these stocks are considerable interest in efforts to quantify ...
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Índice S como indicador de qualidade física em solos do estado do Paraná
... for soil quality indicators has increased with the agricultural sustainability ...indicator of soil physical ...sensitivity of S-index as an indicator of soil physical quality ...
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TOPOGRAFIA E VARIABILIDADE ESPACIAL DE PROPRIEDADES FÍSICAS DO SOLO
... hills of Rio de Janeiro State, soils are predominantly formed by material originated of in situ weathering of Precambrian rocks (leuco and mesocratic gneisses), and of their derived colluvial ...
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