Compressibilidade de um Argissolo Vermelho-Amarelo trafegado e escarificado

Vogelmann, Eduardo Saldanha; Mentges, Marcelo Ivan; Reichert, José Miguel; Rosa, David Peres da; Barros, Cláudia Alessandra Peixoto de; Reinert, Dalvan José

doi:10.1590/s0103-84782012005000004

Cited by 11 publications

(5 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Likewise, the lower sp showed that the higher deployment time of NT also mitigated the loss of soil structure promoted by CT in the past, thus increasing the CI of these areas. Our findings (Table 2) are in agreement with those reported by Vogelmann et al (2012) who found that NT with additional traffic (traffic intensity of 24,67 Mg km ha -1 ) increased the BD and sp in the top 0.10 m soil layer, while NT caused the lowest load support capacity and greater susceptibility to compaction.…”

Section: Resultssupporting

confidence: 92%

Compressibility and water availability in Albaqualf soils under different deployment times in no-tillage

Reis

Lima

Bamberg

et al. 2018

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

The southern Brazilian lowlands have been historically used for flooded rice cultivation. Over time, heavy machinery and intensive tillage practices have resulted in soil structure disruption, soil compaction, higher production costs and lower agricultural profitability. This study aimed to evaluate the effect of different deployment times of no-tillage (NT). Soil properties including bulk density (BD), compression index (CI), preconsolidation pressure (sp), bulk density at preconsolidation pressure (BDsp), degree of compactness (DC), soil water retention curve (SWRC), plant available water (PAW) and total organic carbon (TOC) content were evaluated using a 30-yr non-cultivated field (NC), adjacent to the experimental plots as a control. The BD, sp, BDsp and DC decreased in response to NT adoption time while the soil water holding capacity increased, allowing for higher PAW. Results from this study demonstrated the positive effects of NT on the overall quality of soils.

show abstract

Section: Resultssupporting

confidence: 92%

Compressibility and water availability in Albaqualf soils under different deployment times in no-tillage

Reis

Lima

Bamberg

et al. 2018

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

show abstract

“…Silva et al (2002) evaluated Ultisols and Oxisols and found that chiseling degraded the soil structure, with a consequent reduction in load-bearing capacity and increased susceptibility to soil compaction. Likewise, Vogelmann et al (2012), in a study on an Acrisol under NT with and without chiseling, with traffic and without traffic, observed increased susceptibility to compaction in the chiseled treatment, which was attributed to physical degradation due to mechanical tillage. The same authors found that agricultural traffic induced increases in the load-bearing capacity and reduced susceptibility to soil compaction to a depth of 20 cm.…”

Section: Discussionmentioning

confidence: 91%

“…The CI is related to soil disturbance (Lima et al, 2006;Vogelmann et al, 2012), which is reflected in lower values of this index in soils with higher initial degrees of compaction (Figure 2). The influence of soil water content and initial degree of compaction on PR is cited in several papers (Mosadeghi et al, 2003;Dias Júnior et al, 2004;Lima et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Modeling of Soil Load-Bearing Capacity as a Function of Soil Mechanical Resistance to Penetration

Ortigara

Moraes

Debiasi

et al. 2015

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

estimation of soil load-bearing capacity from mathematical models that relate preconsolidation pressure (σp) to mechanical resistance to penetration (PR) and gravimetric soil water content (U) is important for defining strategies to prevent compaction of agricultural soils. Our objective was therefore to model the σp and compression index (CI) according to the PR (with an impact penetrometer in the field and a static penetrometer inserted at a constant rate in the laboratory) and U in a Rhodic Eutrudox. The experiment consisted of six treatments: no-tillage system (NT); NT with chiseling; and NT with additional compaction by combine traffic (passing 4, 8, 10, and 20 times). Soil bulk density, total porosity, PR (in field and laboratory measurements), U, σp, and CI values were determined in the 5.5-10.5 cm and 13.5-18.5 cm layers. Preconsolidation pressure (σp) and CI were modeled according to PR in different U. The σp increased and the CI decreased linearly with increases in the PR values. The correlations between σp and PR and PR and CI are influenced by U. From these correlations, the soil load-bearing capacity and compaction susceptibility can be estimated by pr readings evaluated in different u.

show abstract

“…These values are classified as extremely high by Horn and Fleige (2003). However, similar values (Rucknagel et al, 2010;Vogelmann et al, 2012) and higher (Lima et al, 2004) Table 3. Coefficient of correlation (r) and probability (p) between the mean weight diameter (MWD) and the soil physical properties of a Typic Hapludult at the 0.00-0.10 and 0.10-0.20 m layers The parameters obtained from the uniaxial compression curve are relevant to the suitability of use practices, management and machine traffic, aiming to minimize soil degradation (Silva et al, 2002).…”

Section: Resultsmentioning

confidence: 98%

Hydro-Physical Properties of a Typic Hapludult under the Effect of Rice Husk Ash

Islabão

Lima

Vahl

et al. 2016

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

ABSTRACT:The combustion of rice husk generates a partially burnt mixture called rice husk ash (RHA) that can be used as a source of nutrients to crops and as a conditioner of soil physical properties. The objective of this study was to evaluate the effect of RHA levels on the hydro-physical properties of a Typic Hapludult. The experimental design was composed of random blocks with four replications, which comprised plots of 24 m 2 and treatments with increasing RHA rates: 0, 40, 80 and 120 Mg ha -1. Undisturbed soil samples were collected in the soil layers of 0.00-0.10 and 0.10-0.20 m after nine months of RHA application, using steel cylinders (0.03 m of height and 0.047 m of diameter). These samples were used to determine soil bulk density (Bd), total soil porosity (TP), soil macroporosity (Ma), soil microporosity (Mi) and the available water capacity (AWC). Disturbed soil samples were collected to determine the stability of soil aggregates in water, mean weight diameter of water stable aggregates (MWD), and soil particle size distribution. The results show that, as the RHA rate increased in the soil, Bd values decreased and TP, Ma and MWD values increased. No effect of RHA was found on Mi and AWC values. The effects of RHA on the S parameter (Dexter, 2004), precompression stress and compression index (Dias Junior and Pierce, 1995) values are consistent those shown for density and total porosity. Rice husk ash was shown to be an efficient residue to improve soil physical properties, mainly at rates between 40 and 80 Mg ha -1 . Rice husk ash reduces bulk density and increases total porosity, macroporosity and soil aggregation, but does not affect microporosity, field capacity, permanent wilting point, and available water capacity of the soil. The effect of rice husk ash on the S parameter, precompression stress and index compressibility coefficient values are consistent with those observed for the bulk density and total porosity.

show abstract

Compressibilidade de um Argissolo Vermelho-Amarelo trafegado e escarificado

Cited by 11 publications

References 14 publications

Compressibility and water availability in Albaqualf soils under different deployment times in no-tillage

Compressibility and water availability in Albaqualf soils under different deployment times in no-tillage

Modeling of Soil Load-Bearing Capacity as a Function of Soil Mechanical Resistance to Penetration

Hydro-Physical Properties of a Typic Hapludult under the Effect of Rice Husk Ash

Contact Info

Product

Resources

About