Resistência específica à tração na operação de escarificação do solo em camadas de forma simultânea

Gassen, José Renê Freitas; Alonço, Airton dos Santos; Baumhardt, Ulisses Benedetti; Bellé, Mateus Potrich; Bonotto, Gustavo José

doi:10.1590/s1415-43662014000100015

Cited by 8 publications

(6 citation statements)

References 14 publications

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“…This is indicative that this factor is not limiting for adequate disturbance in the furrow for no-tillage systems, thus suggesting the possibility of using speeds up to 2.78 m/s without reducing soil disturbance. These results are similar to those found by Bellé et al (2014) and Gassen et al (2014), while working with chisel plows in tillage systems, and by Francetto et al (2015), while analyzing the performance of associations between cutting discs and furrow openers. This effect may be associated with the friable soil consistency at the time of the experiment, confirming the results found by Casão Junior et al (2000), who observed no increase of the soil disturbance area only in this moisture condition.…”

Section: Maximum Furrow Depthsupporting

confidence: 88%

“…Cepik et al (2005), when evaluating the volume of soil disturbance by a row crop planter with five lines, fitted with hoe openers, according to the speed, found a mean value of 121.80 and 135.90 m³/ha, showing a 12% increase when sowing speed went from 1.25 m/s to 1.81 m/s. However, Bellé et al (2014) and Gassen et al (2014), when evaluating hoe openers for soil scarification, and Francetto et al (2015), when analyzing furrowers of planters, found no influence of increased speed on soil mobilization.…”

Section: Introductionmentioning

confidence: 94%

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Disturbance of Ultisol soil based on interactions between furrow openers and coulters for the no-tillage system

Francetto

Alonço

Brandelero

et al. 2016

Span. j. agric. res.

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The present study evaluated the effect of different associations between coulters and fertilizer furrow openers on soil disturbance, furrow depth and width, according to forward speed. The study was conducted on a farm in Santa Maria (Brazil/RS), in soil classified as sandy loam Ultisol. The experiment consisted of 24 combinations of treatments with three replications in a 2×3×4 factorial experiment. The combinations were formed by the interaction of the factors including: two types of furrow openers (hoe and double-disc), three types of coulters (no-coulter, smooth and offset fluted) and four levels of forward speed (1.11, 1.67, 2.22 and 2.78 m/s). Soil elevation and soil disturbance area profiles were obtained with the use of a micro profilometer, and disturbance values were calculated with the aid of computer software program Auto Cad. The disturbance area was not affected by speed; it was greater when using the hoe opener, and in association with the offset fluted coulter. Speed was inversely proportional to the depth of the furrows made by the hoe opener. Furthermore, the hoe caused the greatest furrow width (0.26 m) in comparison with the double-disc (0.24 m). The use of different coulters associated with furrow openers increased this variable (0.23 m for the no-coulter condition, 0.25 m with smooth and 0.26 m with offset fluted). The use of coulters combined with furrow openers reduces soil swelling, in approximately 8% for the smooth and 20% for the offset fluted.

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Section: Maximum Furrow Depthsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 94%

Disturbance of Ultisol soil based on interactions between furrow openers and coulters for the no-tillage system

Francetto

Alonço

Brandelero

et al. 2016

Span. j. agric. res.

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“…This indicates that this factor, similar to the distance, is not limiting for proper mobilization in the furrow for the direct planting system and suggests the possibility of using speeds of up to 2.78 m s -1 without causing changes in soil mobilization. These results are in accordance with those found by Silva et al (2012) when assessing the performance of straw cutting mechanisms, Bellé et al (2014) and Gassen et al (2014) when working with scarifiers in a direct planting system, and Francetto et al (2016) when analyzing the performance of furrow openers and cutting discs. This effect may have been influenced by the friable consistency of the soil at the time of the experiment, corroborating the results obtained by Casão Junior et al (2000), who did not find an increase in the mobilized soil area in this moisture condition only.…”

Section: Area Of Mobilized Soilsupporting

confidence: 88%

Effect of the Distance Between the Cutting Disc and Furrow Openers Employed in Row Crop Planting on Soil Mobilization

et al. 2021

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“…Também, é verificado nos estudos de Bellé et al (2014) e Gassen et al (2014), ao avaliarem hastes para escarificação, onde a não influência do incremento da velocidade sobre a mobilização do solo, igualmente comprovado por Francetto et al (2016a) ao avaliar a mobilização de solo por sulcadores e discos de corte.…”

Section: Fatoresunclassified

Resistência Específica Operacional De Discos Para Corte De Resíduos Culturais Em Semeadura Direta

et al. 2019

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RESISTÊNCIA ESPECÍFICA OPERACIONAL DE DISCOS PARA CORTE DE RESÍDUOS CULTURAIS EM SEMEADURA DIRETA RAFAEL SOBROZA BECKER1; AIRTON DOS SANTOS ALONÇO2; TIAGO RODRIGO FRANCETTO3; DAUTO PIVETTA CARPES4 E GESSIELI POSSEBOM5 Departamento de Engenharia Rural, Programa de Pós-Graduação em Engenharia Agrícola, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Bairro Camobi, CEP: 97105-900, Santa Maria, Rio Grande do Sul, Brasil. E-mails: 1rafaelsobrozabecker@gmail.com, 2airtonalonco@gmail.com, 3tiago.francetto@ufsm.br, 4dautocarpes@gmail.com, 5 gessielip@hotmail.com. RESUMO: O objetivo deste trabalho foi avaliar a resistência específica operacional de discos de corte com distintas bordas de corte de resíduos culturais, em função da velocidade de deslocamento, utilizados em semeadoras-adubadoras para semeadura direta. O mesmo foi conduzido em uma área experimental na Universidade Federal de Santa Maria (UFSM). O solo da área experimental foi classificado como Argissolo Vermelho-Amarelo distrófico arênico, com textura franca. O experimento foi composto por 16 tratamentos, em um esquema fatorial de 4x4. Estes foram compostos pela interação dos diferentes discos de corte de resíduos culturais (disco de corte liso (D1); disco ondulado (D2); disco corrugado (D3) e disco ondulado helicoidal (D4)) e velocidades de deslocamento. Os dados de desempenho do trator agrícola foram adquiridos com a utilização de instrumentação eletrônica e os valores de mobilização do solo obtidos com o emprego de um microperfilômetro. A necessidade de tração por área de solo mobilizada foi menor quando utilizado o disco ondulado helicoidal, proporcionando uma redução de 40,41 %, comparado ao disco liso e em 27,56 % comparado ao disco corrugado. O disco ondulado apresentou um incremento de 32 kN m-2 ao disco ondulado helicoidal. Indiferentemente do disco, foi observado incremento da resistência com a elevação da velocidade. Conclui-se que o disco ondulado helicoidal foi mais eficiente no uso da tração por unidade de solo mobilizado, seguido do disco ondulado. Palavras-chaves: Ensaio de campo; Máquinas agrícolas, Relação máquina-solo, Semeadora-adubadora, Engenharia Agrícola. SPECIFIC OPERATIONAL RESISTANCE OF CROP RESIDUE CUTTING DISCS IN NO-TILLAGE SYSTEM ABSTRACT: The objective of this work was to evaluate the specific operational resistance of different cutting discs of cultural residues, as a function of displacement speed, used in no-tillage planter. The study was conducted in an experimental area at the Federal University of Santa Maria (UFSM). The soil was classified as Paleudalf, with a free texture. The experiment was composed of 16 treatments, in a 4x4 factorial scheme. These were composed by the interaction of the different crop residue cutting discs (plain flat disc (D1); wavy disc (D2), rippled disc (D3), and helical wavy disc coulter (D4)) and travel speed. The performance data of the agricultural tractor were acquired with the use of electronic instrumentation and the soil mobilization values obtained with the use of a microprofilometer. The need for traction per mobilized soil area was lower when the helical wavy disc coulter was used, providing a reduction of 40.41%, compared to the plain flat disc and 27.56% compared to the rippled disc. The wavy disc presented an increment of 32 kN m-2 to the helical wavy disc coulter. Regardless of the disc, increase of resistance was observed with the increase of speed. It was concluded that the helical wavy disc coulter was more efficient in the use of traction per unit of mobilized soil, followed by the wavy disc. Keywords: Field trial; Agricultural machinery; Machine-soil ratio; Planter; Agricultural Engineering.

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Resistência específica à tração na operação de escarificação do solo em camadas de forma simultânea

Cited by 8 publications

References 14 publications

Disturbance of Ultisol soil based on interactions between furrow openers and coulters for the no-tillage system

Disturbance of Ultisol soil based on interactions between furrow openers and coulters for the no-tillage system

Effect of the Distance Between the Cutting Disc and Furrow Openers Employed in Row Crop Planting on Soil Mobilization

Resistência Específica Operacional De Discos Para Corte De Resíduos Culturais Em Semeadura Direta

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