Soil penetration resistance in a rhodic eutrudox affected by machinery traffic and soil water content

Moraes, Moacir Tuzzin de; Debiasi, Henrique; Franchini, J. C.; Silva, Vanderlei R. da

doi:10.1590/s0100-69162013000400014

Cited by 24 publications

(18 citation statements)

References 21 publications

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“…These results can be explained by the low clay content in the soil, providing a naturally high density (Marcolin and Klein, 2011). Moreover, consecutive preparation operations of the soil for the rice crop, often under conditions of high water content in the soil, favors the soil compression process (Moraes et al, 2013), raising the BD and thus reducing the PT.…”

Section: Discussionmentioning

confidence: 99%

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Physical Properties and Crop Management for Corn in an Albaqualf

Giacomeli

Marchesan

Oliveira

et al. 2017

Rev. Bras. Ciênc. Solo

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Rice monoculture in lowlands can cause problems for management practices in crop fields, for example, in weed control. For this reason, corn in rotation with irrigated rice in lowlands may be advantageous, despite problems with soil compaction and water excess. The objective of this study was to evaluate soil physical properties and corn performance in soil management systems in an Albaqualf soil (lowlands). Two experiments were conducted in the field, in the 2013/14 and 2014/15 crop seasons. The experimental design was randomized blocks with two factors. There were three levels for the first factor, consisting of soil management practices: soil chiseling 45 days before sowing to a depth of 0.3 m; conventional tillage with two diskings to a depth of 0.1 m and subsequent leveling of the soil; and no-till. The second factor was composed of two levels: sowing on raised seedbeds, and without raised seedbeds. The soil parameters of bulk density, total porosity, macroporosity, microporosity, volumetric moisture, and soil resistance to mechanical penetration (RP) were evaluated. The corn parameters were plant height, shoot dry matter, leaf area, height of the first ear of corn, grains per ear, and grain yield. Soil chiseling resulted in lower RP and higher macroporosity in the 0.1-0.2 and 0.2-0.3 m layers. In raised seedbeds, the 0.00-0.05, 0.05-0.10, and 0.10-0.20 m layers were lower in RP and bulk density. Moreover, higher soil macroporosity was observed in relation to the treatment without raised seedbeds. In general, the highest grain yields were found in the treatments with lower RP and higher macroporosity in the root system region. Increased porosity accelerated water drainage in the soil, reducing the time that soil airspace was filled with water, which is a limiting factor for root development. In Albaqualf soils, planting corn in chiseled soil provides higher corn yields compared to conventional tillage, and planting corn on raised seedbeds provides higher corn yields compared to the lack of raised seedbeds.

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Section: Discussionmentioning

confidence: 99%

“…In addition to these natural characteristics of the soil, intensive soil preparation for irrigated rice, conducted under conditions of high water content in the soil, promotes the soil compaction process (Moraes et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Physical Properties and Crop Management for Corn in an Albaqualf

Giacomeli

Marchesan

Oliveira

et al. 2017

Rev. Bras. Ciênc. Solo

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“…However, it is not yet known whether agricultural traffic in sandy soils, which have a large volume of macropores, could be beneficial to plants by reducing pore size and altering water retention in these soils. Soil compaction by agricultural traffic occurs with the first pass of the machine (Moraes et al, 2013); however, the greatest subsurface compaction problems caused by agricultural traffic are the result of the machines axle load (Keller et al, 2014), and by the accumulation of the number of passes over the same area (Moraes et al, 2013). Studies on controlled traffic to reduce the compaction levels of agricultural areas have been conducted in different soil types, such as in Latossolo Vermelho (Oxisol) in Brazil (Girardello et al, 2014), and in Australia (McPhee et al, 2015), where soils are clayey and highly susceptible to compaction by machine traffic (Moraes et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Corn crop performance in an Ultisol compacted by tractor traffic

Moraes

Levien

Trein

et al. 2018

Pesq. agropec. bras.

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-The objective of this work was to determine whether compaction by tractor traffic in areas managed under controlled traffic can be limiting to corn crop, under different tillage systems, in a Typic Paleudult of medium texture. Two experiments were carried out, one in the field over two crop seasons and another in a greenhouse. The treatments consisted of minimum tillage with chiselling; no-tillage subjected to one, three, or six passes of a tractor weighing 3.8 Mg; and an area without traffic. Evaluations were performed for soil physicohydraulic parameters (soil bulk density, penetration resistance, and water retention curve), root and shoot growth, and grain yield. The agricultural traffic increased bulk density, soil penetration resistance, and water content at field capacity. The highest values for soil penetration resistance (1,600 kPa) and bulk density (1.67 g cm ) in the trafficked soil were not limiting to corn development and increased grain yield for both crop seasons. Tractor traffic of up to six passes is beneficial to corn cultivation, and it increases water availability and corn grain yield.

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“…Propriedades físicas do solo têm sido usadas como parâmetros para caracterizar o processo de compactação, destacando-se entre elas a densidade do solo, a porosidade total, a macroporosidade, a microporosidade e a resistência do solo à penetração (MORAES et al, 2013;OLIVEIRA et al, 2012), as quais influenciam significativamente o desenvolvimento das culturas.…”

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Influência da pressão interna dos pneus e da velocidade de deslocamento nos parâmetros operacionais de um trator agrícola e nas propriedades físicas do solo

Feitosa¹,

Fernándes²,

Teixeira³

et al. 2015

Eng. Agríc.

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RESUMO: O tráfego intenso de tratores ocasiona alterações na qualidade física do solo, desencadeando processos de compactação e erosão. O presente trabalho teve como objetivo avaliar a influência da alteração da pressão interna dos pneus e da velocidade de deslocamento de um trator agrícola 4 x 2 com tração dianteira auxiliar (TDA), em propriedades físicas de um solo usadas como parâmetros para a avaliação da compactação e em parâmetros operacionais do trator relacionados ao seu desempenho. Para tanto, foram determinadas a densidade do solo, a porosidade total e o índice de cone de amostras de solo coletadas antes e após a passagem do trator. Determinou-se, ainda, o avanço cinemático do trator, a patinagem dos rodados, a área de contato entre o pneu e o solo, e a pressão de contato aplicada à superfície do solo. O uso de diferentes combinações de pressões internas e de velocidades de deslocamento não alteraram a patinagem dos rodados do trator, nem o índice de cone do solo. A densidade foi afetada apenas pelas velocidades de deslocamento. A aplicação das pressões de 110 e 124 kPa, respectivamente, nos pneus dianteiros e traseiros do trator, combinada com a velocidade de deslocamento de 1,51 m s -1 ocasionou a ma ior redução na porosidade total. PALAVRAS-CHAVE: compactação, densidade do solo, patinagem dos rodados, porosidade. INFLUENCE OF TIRE INNER PRESSURE AND TRAVELLING SPEED ON TRACTOR OPERATING PARAMETERS AND SOIL PHYSICAL PROPERTIESABSTRACT: Heavy traffic of tractors causes changes in soil physical quality triggering compaction and erosion. This study aimed to evaluate the influence of tire inner pressure and travelling speed of a 4x2 FWA (front wheel assist) farm tractor on soil physical properties, using the parameters of soil compaction evaluation, and tractor operating parameters related to the machine performance. For these purposes, soil bulk density, total porosity and cone index were determined from soil samples collected before and after tractor passage. Moreover, it was also analyzed tractor kinematic advance, wheel slipping, ground-tire interface and soil surface pressure beneath the tires. Varied inner pressure and travelling speed sets did not change both soil wheel slipping and cone index. On the other hand, soil density was affected only by travelling speed changes. A greater reduction in total porosity was observed by applying 124 and 110 kPa pressure in tractor front and rear tires, respectively, in combination with 1.51 m s -1 travelling speed.

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Soil penetration resistance in a rhodic eutrudox affected by machinery traffic and soil water content

Cited by 24 publications

References 21 publications

Physical Properties and Crop Management for Corn in an Albaqualf

Physical Properties and Crop Management for Corn in an Albaqualf

Corn crop performance in an Ultisol compacted by tractor traffic

Influência da pressão interna dos pneus e da velocidade de deslocamento nos parâmetros operacionais de um trator agrícola e nas propriedades físicas do solo

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