Qualidade física de um latossolo sob plantio direto influenciada pela cobertura do solo

Blainski, Éverton; Tormena, Cássio Antônio; Guimarães, Rachel Muylaert Locks; Nanni, Marcos Rafael

doi:10.1590/s0100-06832012000100009

Cited by 22 publications

(28 citation statements)

References 34 publications

(4 reference statements)

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“…The confidence interval of the adjustment coefficients "d", "e" and "f" of the soil penetration resistance curve does not include the value zero, allowing the conclusion that these were statistically significant (p<0.01), as described by Blainski et al (2009Blainski et al ( , 2012, except for coefficient "d" in T3 and T4, at 0.10 m depth.…”

Section: Resultsmentioning

confidence: 99%

“…All fitted curves of the LBC models had significant determination coefficients (R 2 ) at 1 % by the F test The confidence interval of the adjustment coefficients of the LBC models does not include the value zero, which allows the conclusion that these were statistically significant (p<0.01), as described by Blainski et al (2009Blainski et al ( , 2012.…”

Section: Resultsmentioning

confidence: 99%

“…The correlation coefficients (r) of the adjusted water retention curves were subjected to the F test, according to Blainski et al (2009Blainski et al ( , 2012 After determining the penetration resistance, the uniaxial compression of the same evaluated samples was tested by a consolidometer, model CNTA-IHM/BR-001/07, according to Bowles (1986) and modified by Dias Junior (1994). The pressures applied to each sample were: 25; 50; 100; 200; 400; 800; and 1,600 kPa, each being applied until 90 % of the maximum deformation was achieved (Taylor, 1948).…”

Section: Methodsmentioning

confidence: 99%

“…The adjusted curves of load bearing capacity had coefficients of determination (R 2 ) which were tested by the F test as proposed by Blainski et al (2009Blainski et al ( , 2012.…”

Section: Methodsmentioning

confidence: 99%

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Least Limiting Water Range and Load Bearing Capacity of Soil under Types of Tractor-Trailers for Mechanical Harvesting of Green Sugarcane

Pereira

Vitorino

Prado

et al. 2015

Rev. Bras. Ciênc. Solo

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The expansion of the sugarcane industry in Brazil has intensified the mechanization of agriculture and caused effects on the soil physical quality. the purpose of this study was to evaluate the limiting water range and soil bearing capacity of a Latossolo vermelho distroférrico típico (Rhodic Hapludox) under the influence of different tractor-trailers used in mechanical sugarcane harvesting. the experiment was arranged in a randomized block design with five replications. The treatments consisted of green sugarcane harvesting with: harvester without trailer (t1); harvester with two trailers with a capacity of 10 mg each (t2); harvester with trailer with a capacity of 20 mg (t3) and harvester and truck with trailer with a capacity of 20 mg (10 mg per compartment) (t4). the least limiting water range and soil bearing capacity were evaluated. the transport equipment to remove the harvested sugarcane from the field (trailer) at harvest decreased the least limiting water range, reducing the structural soil quality. the truck trailer caused the greatest impact on the soil physical properties studied. the soil load bearing capacity was unaffected by the treatments, since the pressure of the harvester (t1) exceeded the pre-consolidation pressure of the soil.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…The adjusted curves of load bearing capacity had coefficients of determination (R 2 ) which were tested by the F test as proposed by Blainski et al (2009Blainski et al ( , 2012.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Least Limiting Water Range and Load Bearing Capacity of Soil under Types of Tractor-Trailers for Mechanical Harvesting of Green Sugarcane

Pereira

Vitorino

Prado

et al. 2015

Rev. Bras. Ciênc. Solo

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“…On the other hand, there are few studies that used LLWR to quantify possible stover/residue harvest impacts on soil physical quality (e.g., Benjamin and Karlen, 2014). Blainski et al (2012) reported that soil water content fell more frequently outside of the LLWR when soil cover by residues had decreased. To date, the LLWR has not been quantified to evaluate the long-term tillage practices and corn stover harvest associate impacts on soil physical quality for crop production in the Midwestern USA.…”

Section: Introductionmentioning

confidence: 99%

Corn stover harvest and tillage impacts on near-surface soil physical quality

Tormena

Karlen

Logsdon

et al. 2017

Soil and Tillage Research

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and Cherubin, Maurício R., "Corn stover harvest and tillage impacts on nearsurface soil physical quality" (2017). Publications from USDA-ARS / UNL Faculty. 1628Faculty. . http://digitalcommons.unl.edu/usdaarsfacpub/1628 Corn stover harvest and tillage impacts on near-surface soil physical quality Excessive harvest of corn (Zea mays L.) stover for ethanol production has raised concerns regarding negative consequences on soil physical quality. Our objective was to quantify the impact of two tillage practices and three levels of corn stover harvest on near-surface soil physical quality through the Least Limiting Water Range (LLWR). We evaluated no harvest, moderate and high stover harvest treatments within no-tillage and chisel plow plots following seven years of continuous corn production. Forty undisturbed soil samples were taken from the 0-7.5 cm deep layer within each treatment and used to determine water retention curves, soil resistance to penetration and bulk density values (Bd). No-tillage plots had higher average soil bulk density and resistance to penetration values, and were more affected by stover harvest than chisel plow plots. The results confirmed that soil resistance to penetration determined the lower limit of the LLWR regardless of tillage or stover treatment, whereas soil aeration controlled the upper limit only at Bd > 1.45 and Bd > 1.55 Mg m À3 for chisel plow and no-tillage, respectively. The LLWR was smallest for no-tillage with moderate or high corn stover harvest, indicating poor soil physical condition for plant growth, while the largest LLWR occurred with moderate stover harvest and chisel plowing. The introduction of alfalfa (Medicago sativa L.) into an extended rotation with no-tillage improved the LLWR by reducing the potential crop growth restriction due to resistance to penetration. Although bulk density values were only occasionally higher than the critical level (Bd = 1.60 Mg m À3 for chisel plow and Bd = 1.64 Mg m À3 for no-tillage), lower soil structure quality was evident with no-tillage under moderate or high stover harvest and with chisel plowing under high stover removal. The LLWR was more sensitive than available soil water content for detecting tillage and stover harvest effects on soil structural degradation.

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Hydrophysical Quality of an Oxisol Under a No-tillage System with Alternative Crops to Renew a Sugarcane Field

et al. 2017

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Qualidade física de um latossolo sob plantio direto influenciada pela cobertura do solo

Cited by 22 publications

References 34 publications

Least Limiting Water Range and Load Bearing Capacity of Soil under Types of Tractor-Trailers for Mechanical Harvesting of Green Sugarcane

Least Limiting Water Range and Load Bearing Capacity of Soil under Types of Tractor-Trailers for Mechanical Harvesting of Green Sugarcane

Corn stover harvest and tillage impacts on near-surface soil physical quality

Hydrophysical Quality of an Oxisol Under a No-tillage System with Alternative Crops to Renew a Sugarcane Field

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