Demanda de tração e propriedades físicas de um Argissolo em diferentes manejos e intensidades de tráfego

Rosa, David Peres da; Reichert, José Miguel; Mentges, Marcelo Ivan; Rosa, Vanderleia Trevisan da; Vieira, Davi Alexandre; Reinert, Dalvan José

doi:10.1590/s0100-204x2012000100016

Cited by 10 publications

(7 citation statements)

References 25 publications

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“…According to Silva et al (2003), when the soil is with moisture near the shrinkage limit, the soil can be trafficked, as smaller damage is caused to the soil structure. Similar results were found by Rosa et al (2012) when evaluating the effect of traffic intensity and management system in the physical properties of an Ultisol, observing that there were no significant differences for the variable soil density, due to the high state of compaction and the low water content in the soil.…”

Section: Resultssupporting

confidence: 80%

Simulated Traffic Dynamic Loading on Physical Properties of a Red Latosol under No-Tillage

Santos¹,

Viana²,

Silva³

et al. 2018

JAS

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The use of intensive mechanization in no-tillage areas can change soil physical conditions, mainly in the "Cerrado", which has reduced cover ratio. This study aimed to evaluate physical and mechanical properties of a red latosol under no-tillage and subjected to simulated dynamic traffic in different surfaces conditions. For this, soil samples were collected, with dimensions of 0.2 × 0.2 × 0.3 m (height, width and length), in an area subjected to no-tillage in the last four years. Subsequently, samples were transported to the laboratory and subjected to different traffic levels in a simulator. Shortly after, a completely randomized experimental design was set up, in factorial 2 × 5, with two covers (with and without haystack) and five traffic levels (zero, one, two, four and eight run overs) applied by the simulator. Assessed physical properties were superficial settlement, soil density, compaction degree and pre-consolidation pressure. Results showed that superficial settlement, soil density and compaction degree were significantly influenced by soil cover and traffic intensity. Pre-consolidation was not affected by cover, and had higher values when subjected to more traffic intensity.

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Section: Resultssupporting

confidence: 80%

Simulated Traffic Dynamic Loading on Physical Properties of a Red Latosol under No-Tillage

Santos¹,

Viana²,

Silva³

et al. 2018

JAS

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“…Para esta camada, o tráfego do trator proporcionou incremento na RP de 61, 117 e 108%, respectivamente, para 3; 6 e 9 passadas. ROSA et al (2012), em trabalho desenvolvido em Argissolo Vermelho-Amarelo, textura franco argiloarenosa, verificaram que o tráfego (4 e 8 passadas de máquina com massa de 10 Mg) gerou maiores valores de RP na camada de 0,05-0,15 m, independentemente do sistema de preparo utilizado. Para a camada de 0,20-0,30 m, o NC 0 , NC 6 e NC 3 (Figura 3) apresentaram médias (2,48; 3,05 e 3,33MPa, respectivamente) iguais, sendo que o NC 9 apresentou o maior valor de RP (4,40 MPa).…”

Section: Em Trabalho Desenvolvido Em Latossolo Amarelo Dos Tabuleirosunclassified

Influência De Implementos De Preparo E De Níveis De Compactação Sobre Atributos Físicos Do Solo E Aspectos Agronômicos Da Cultura Do Milho

et al. 2016

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RESUMO:Os sistemas de preparo do solo e o aumento do tráfego nas áreas agrícola têm contribuído para o aumento da compactação do solo e diminuição da produtividade das culturas. Assim, objetivou-se avaliar a influência de implementos de preparo do solo e de níveis de compactação sobre atributos físicos de Argissolo Amarelo distrófico típico, textura arenosa, e os impactos nos atributos agronômicos da cultura do milho. Os tratamentos foram constituídos por três implementos de preparo do solo (IP 1 = grade aradora; IP 2 = arado de aivecas, e IP 3 = escarificador) e quatro níveis de compactação (NC 0 = solo não trafegado; NC 3 = 3 passadas; NC 6 = 6 passadas, e NC 9 = 9 passadas de trator). No solo, foram avaliados os atributos: densidade do solo, porosidade total e resistência mecânica à penetração, nas profundidades de 0,00-0,10; 0,10-0,20; 0,20-0,30 e 0,30-0,40 m; e, na cultura, foram avaliados a matéria seca das plantas e de raízes e a produtividade de grãos. Os implementos de preparo do solo influenciaram sobre a densidade do solo e a porosidade total na camada de 0,00-0,10 m. Os níveis de compactação provocaram aumento da resistência à penetração até à profundidade de 0,30 m. O aumento da resistência à penetração acima de 1,53 MPa reduziu linearmente a matéria seca de plantas e a produtividade de grãos de milho, e acima de 2,18 MPa reduziu a matéria seca de raízes. PALAVRAS-CHAVE: produtividade de grãos, resistência à penetração de raízes, Zea mays. TILLAGE MACHINERY AND COMPACTION LEVEL INFLUENCE ON SOIL PHYSICAL PROPERTIES AND CORN AGRONOMIC ASPECTSABSTRACT: Soil tillage and increased traffic in farming areas have contributed to a higher soil compaction and decreased crop yields. Thus, we aimed at assessing the influence of tillage implement types and compaction levels on physical properties of a Yellow Argisol (Ultisol) and further effects on corn agronomic traits. The treatments consisted of three tillage implements (IP 1 = disc harrow, IP 2 = moldboard plow and IP 3 = chisel plow) and four levels of compaction (NC 0 = no traffic soil; NC 3 = 3 passes; NC 6 = 6 passes and NC 9 = 9 passes by a tractor). We evaluated the following soil properties: soil bulk density, total porosity and mechanical resistance to penetration at the depth ranges of 0. 00-0.10; 0.10-0.20; 0.20-0.30 and 0.30-0.40 m. Regarding the corn plants, we assessed plant and root dry matter as well as grain yield. The results showed that tillage implements had influence on soil density and total porosity at the layer of 0.00-0.10 m. Furthermore, the compaction levels increased soil mechanical resistance to penetration at a depth of 0.30 m. We also observed that an increase above 1.53 MPa in soil resistance to penetration reduced linearly plant dry matter and grain yield; and when it was above 2.18 MPa, root dry matter was reduced too.

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“…In the specific case of the soils in South-West Paraná, this power demand can be even greater since these soils were weathered from basalt with a high clay content, which therefore requires extra caution during motor mechanical operations to prevent excessive compaction.In a study on the power demand of a fertilizer and seed spreader equipped with shank-type opener on Ultisol, Mentges et al (2010) found that increased soil compaction caused by the change of soil density from 1.55 to 1.71 Mg m -3 (up to 0.10 m in depth) increased the power demand by around 22%. However, in a study on no-till systems in Ultisol with two levels of traffic intensity in the same place, Rosa et al (2012) did not find a significant difference in traction demand in a seeder-fertilizer equipped with chisel plough.…”

Section: Introductionmentioning

confidence: 86%

Traction force demand of soybean planting in compacted Oxisol

Trentin¹,

Ppgag²,

Utfpr³

et al. 2018

Aust J Crop Sci

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The heavy traffic of machinery and implements in no-tillage areas leads to surface compaction, especially when the managed soil contains high levels of moisture. This problem is one of the main causes of increased power demand in seeding operations. The aim of this paper was to assess the performance of two furrow opener mechanisms for planting soybean in clay soil with different levels of compaction and assess their relationship with traction demand. A random blocks experimental design with subdivided plots was used. The plots had four levels of soil compaction (1.16, 1.20, 1.22, and 1.26 Mg m -3 ), and the subplots consisted of furrow openers (double-disc opener and shank-type opener) with four replications. Soybean sowing was carried out with a no-tillage seed with five lines. Seed deposition depth; cross-sectional area of mobilized soil; depth and width of the groove and the power demand measured by a load cell coupled between the tractor and the seeder were analyzed. The shank-type furrow opener increased the depth and width of the furrows, the planting depth and the disturbed area, and required greater power demand as the density of the soil increased. The contrary was observed with the double disc opener as this furrower presents low capability to reach d eeper layers in compacted soil, as a result of its design characteristics.

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Demanda de tração e propriedades físicas de um Argissolo em diferentes manejos e intensidades de tráfego

Cited by 10 publications

References 25 publications

Simulated Traffic Dynamic Loading on Physical Properties of a Red Latosol under No-Tillage

Simulated Traffic Dynamic Loading on Physical Properties of a Red Latosol under No-Tillage

Influência De Implementos De Preparo E De Níveis De Compactação Sobre Atributos Físicos Do Solo E Aspectos Agronômicos Da Cultura Do Milho

Traction force demand of soybean planting in compacted Oxisol

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