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Analyzing the efforts in furrow openers used in low power planters

The furrow openers for no-till system should be easy to penetrate the soil, generate low levels of soil mobilization and require a little traction force. Thus, the aim of this research was to compare six hoe-type furrow openers, four of industrial manufacturing and two handcrafted models, which were...

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Published in:Engenharia Agrícola 2012-12, Vol.32 (6), p.1133-1143
Main Authors: Troger, Henrique C. H., Reis, Ângelo V. dos, Machado, Antônio L. T., Machado, Roberto L. T.
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description The furrow openers for no-till system should be easy to penetrate the soil, generate low levels of soil mobilization and require a little traction force. Thus, the aim of this research was to compare six hoe-type furrow openers, four of industrial manufacturing and two handcrafted models, which were used in planters in the region of Pelotas, Brazil. The parameters for comparison among these furrow openers were the horizontal (Fh) and vertical (Fv) forces acting on the tip of the hoe and the cross-sectional area mobilized in the furrow. The experimental design was randomized, with six treatments (furrow openers) from T1 to T6, with four repetitions, constituted by their passage through plots of 20 x 3 m. The force data were collected by load cells and a signal conditioner. The determination of the mobilized area in the furrow was done by a micro soil profilometer. It was concluded that the furrow openers T1, T4 and T6 presented the lowest values of horizontal force (statistically equal and ranging between 1,034 and 1,230 N) and that T1 and T2 produced the highest vertical forces downwards (statistically identical and varying between 749 and 845 N). The furrow openers T1, T2, T4, T5 and T6 generated soil mobilization statistically equal and between 0.006993 and 0.008933 m². Os sulcadores de semeadoras de plantio direto devem ter facilidade de penetração no solo, gerar baixa mobilização de solo e demandar pequena força de tração. Nesse sentido, o presente trabalho objetivou comparar seis modelos de sulcadores tipo facão, quatro de fabricação industrial e dois artesanais, todos utilizados em semeadoras adubadoras na região de Pelotas - RS. Os parâmetros para comparação entre os sulcadores foram as forças horizontal (Fh) e vertical (Fv) atuantes no sulcador e a área de secção transversal mobilizada no sulco. O delineamento experimental utilizado foi o inteiramente casualizado, composto por seis tratamentos (sulcadores) de T1 a T6, com quatro repetições, constituídas pela passagem do conjunto por parcelas de 20 x 3 m. Os dados de força foram coletados por meio de células de carga e condicionador de sinais. A determinação da área de solo mobilizada deu-se por meio da utilização de um microperfilômetro. Concluiu-se que os sulcadores de T1, T4 e T6 apresentaram os menores valores de força horizontal (estatisticamente iguais e variando entre 1.034 e 1.230 N) e que T1 e T2 produziram as maiores forças verticais para baixo (estatisticamente iguais e variando entre 749
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The experimental design was randomized, with six treatments (furrow openers) from T1 to T6, with four repetitions, constituted by their passage through plots of 20 x 3 m. The force data were collected by load cells and a signal conditioner. The determination of the mobilized area in the furrow was done by a micro soil profilometer. It was concluded that the furrow openers T1, T4 and T6 presented the lowest values of horizontal force (statistically equal and ranging between 1,034 and 1,230 N) and that T1 and T2 produced the highest vertical forces downwards (statistically identical and varying between 749 and 845 N). The furrow openers T1, T2, T4, T5 and T6 generated soil mobilization statistically equal and between 0.006993 and 0.008933 m². Os sulcadores de semeadoras de plantio direto devem ter facilidade de penetração no solo, gerar baixa mobilização de solo e demandar pequena força de tração. Nesse sentido, o presente trabalho objetivou comparar seis modelos de sulcadores tipo facão, quatro de fabricação industrial e dois artesanais, todos utilizados em semeadoras adubadoras na região de Pelotas - RS. Os parâmetros para comparação entre os sulcadores foram as forças horizontal (Fh) e vertical (Fv) atuantes no sulcador e a área de secção transversal mobilizada no sulco. O delineamento experimental utilizado foi o inteiramente casualizado, composto por seis tratamentos (sulcadores) de T1 a T6, com quatro repetições, constituídas pela passagem do conjunto por parcelas de 20 x 3 m. Os dados de força foram coletados por meio de células de carga e condicionador de sinais. A determinação da área de solo mobilizada deu-se por meio da utilização de um microperfilômetro. 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It was concluded that the furrow openers T1, T4 and T6 presented the lowest values of horizontal force (statistically equal and ranging between 1,034 and 1,230 N) and that T1 and T2 produced the highest vertical forces downwards (statistically identical and varying between 749 and 845 N). The furrow openers T1, T2, T4, T5 and T6 generated soil mobilization statistically equal and between 0.006993 and 0.008933 m². Os sulcadores de semeadoras de plantio direto devem ter facilidade de penetração no solo, gerar baixa mobilização de solo e demandar pequena força de tração. Nesse sentido, o presente trabalho objetivou comparar seis modelos de sulcadores tipo facão, quatro de fabricação industrial e dois artesanais, todos utilizados em semeadoras adubadoras na região de Pelotas - RS. Os parâmetros para comparação entre os sulcadores foram as forças horizontal (Fh) e vertical (Fv) atuantes no sulcador e a área de secção transversal mobilizada no sulco. O delineamento experimental utilizado foi o inteiramente casualizado, composto por seis tratamentos (sulcadores) de T1 a T6, com quatro repetições, constituídas pela passagem do conjunto por parcelas de 20 x 3 m. Os dados de força foram coletados por meio de células de carga e condicionador de sinais. A determinação da área de solo mobilizada deu-se por meio da utilização de um microperfilômetro. Concluiu-se que os sulcadores de T1, T4 e T6 apresentaram os menores valores de força horizontal (estatisticamente iguais e variando entre 1.034 e 1.230 N) e que T1 e T2 produziram as maiores forças verticais para baixo (estatisticamente iguais e variando entre 749 e 845 N). Os sulcadores T1, T2, T4, T5 e T6 geraram mobililizações de solo estatiscamente iguais entre 0,006993 e 0,008933 m².</abstract><pub>Associação Brasileira de Engenharia Agrícola</pub><doi>10.1590/S0100-69162012000600015</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record>
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title Analyzing the efforts in furrow openers used in low power planters
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