Desempenho Operacional Do Conjunto Trator-Implementos Nas Operações De Preparo Do Solo

Cortez, Jorge Wilson; Ferreira, Bernardo José Marques; Alves, Aline Dantas da Silva; Moura, Marcelo Rubens Dias de; Nagahama, Hideo de Jesus

doi:10.3738/1982.2278.577

Cited by 5 publications

(7 citation statements)

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“…While assessing operating performance of tandem and light off-set harrow with 22" and 24" diameter disks, Cortez et al (2011) found work speeds between 5.04 and 5.76 km h -1 and Cce between 0.93 and 1.10 ha h -1 . The speeds found in this study are different from those mentioned in lower values, what can be explained due to the used harrow having 0,71 m (28 inches) diameter disks, which are heavier and reach deeper work depth.…”

Section: Resultsmentioning

confidence: 99%

Disk harrow operational performance in three engine rotation speeds

Correia¹,

Sousa²,

Tavares³

et al. 2015

Científica

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Even with the current techniques of conservation tillage, mobilization is still a widely used practice, either in initial preparation as in reform of agricultural areas. In this context the harrows are widely used, mainly because of the good working capacity and high efficiency in tillage soil. Thus, this study aimed to evaluate the operating performance of a disc harrow in clay soil using different spins. The experiment was conducted at the Experimental Farm Lageado, belonging to the Faculty of Agricultural Sciences-UNESP Botucatu-SP. For accomplishment of the tillage was used a disk harrow, mark Tatu Marchesan model GAICR offset , with a cutting width of 2.57 m and consists of 20 cut disks of 0,71 m (28 inches) spaced at 0.27 m. To exert traction the disk harrow was used of tires tractor John Deere brand, model JD6600 with power 91.48 kW (121 hp) engine. The used treatments were three engine revolutions, 157 rad s-1 (1500 rpm), 189 rad s-1 (1800 rpm) and 220 rad s-1 (2100 rpm), and evaluated the working speeds achieved, effective field capacity, operational fuel consumption, working depth of the disc harrow, skating wheels of the tractor and drawbar force. The results indicated that most job rotation provided lower fuel consumption and greater field capacity. However, the increase in speed of work provided a reduction of working depth of the discs of the harrow.

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Section: Resultsmentioning

confidence: 99%

Disk harrow operational performance in three engine rotation speeds

Correia¹,

Sousa²,

Tavares³

et al. 2015

Científica

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“…A grade diferencia-se dos demais implementos por apresentar elevada capacidade operacional em função da maior largura de trabalho (Cortez et al, 2011), sendo um dos principais equipamentos utilizados, acoplado ao trator, no preparo periódico do solo (Martins et al, 2018).…”

Section: Introductionunclassified

Comprimento do talhão na operação de preparo do solo com grade média

Pinto

Câmara

2020

Agrarian

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A utilização da mecanização agrícola tornou mais eficiente as práticas agrícolas, destacando-se o trator que permitiu a realização de práticas de cultivo mais eficientes. Portanto, objetivou-se determinar o comprimento de talhão que obtenha eficiência de campo de 90% na operação de preparo do solo com grade média em função da velocidade de deslocamento e do comprimento do talhão. O experimento foi realizado em delineamento inteiramente casualizado, em esquema fatorial 8x3, com seis repetições, totalizando 96 observações. O primeiro fator foram oito comprimentos de talhões (30, 60, 90, 120, 150, 180, 210 e 240 m). O segundo foram três velocidades de deslocamento (3,0; 4,1 e 4,7 km h-1). Com os dados de rendimento de campo efetivo foi gerado uma curva de resposta para seleção do comprimento de talhão que proporcione rendimento de campo efetivo de 90%. No fator velocidade de deslocamento a maior capacidade de campo operacional ocorreu com 4,7 km h-1. Para o fator comprimento do talhão a maior capacidade de campo operacional e rendimento de campo efetivo foi observada com 240 m. O rendimento de campo efetivo de 90% é alcançado com comprimento de talhão de 120 metros. A capacidade de campo máxima ocorreu com a velocidade de 4,7 km h-1 (0, 93 ha h-1) com o comprimento de talhão de 214 m.

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“…In this context, the working depth and ballast to be used are factors which may directly influence the operational performance and energy assembly. Cortez et al (2011) reports that some implements have better operational capacity than others. Thus, Fernandes and Gamero (2010) by studying the operational performance in reduced tillage and conventional technique found that the theoretical field capacity light grid was 1.28 ha h -1 , while for the scarifier was 0.80 ha h -1 , in the speeds 5.01 and 2.87 km h -1 , respectively.…”

Section: Introductionmentioning

confidence: 99%

Operating and energetic performance of the assembly tractor-scarifier in different liquid ballasting and working depths

Santos¹,

MendonÃ§a²,

Santos³

et al. 2016

Afr. J. Agric. Res.

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The working depth and ballasting are factors that can influence directly the operational and energy performance of a mechanized set. The objective of this study was to evaluate the operational and energetic performance of the set tractor-scarifier, working at three depths under two ballasting conditions. The study was conducted in the experimental area of mechanization of the Department of Agricultural Engineering at the Federal University of Ceará in Fortaleza. The experimental design was of randomized blocks in a factorial scheme 2 x 3, with four replications, with two liquid ballasting (0 and 75% water) and three working depths (0.15; 0.30 and 0.40 m). The parameters evaluated were the soil water content, periodic and specific consumption of fuel, the overall work rate, slipping of the front and rear wheels of the tractor, travel speed, specific operational resistance, mobilized and lifting area, blistering, strength and power in the drawbar. The ballasting with 75% of water associated with a lower depth provided greater operational field capacity, lower demand for strength and power in the drawbar with lower fuel consumption by area.

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Desempenho Operacional Do Conjunto Trator-Implementos Nas Operações De Preparo Do Solo

Cited by 5 publications

References 0 publications

Disk harrow operational performance in three engine rotation speeds

Disk harrow operational performance in three engine rotation speeds

Comprimento do talhão na operação de preparo do solo com grade média

Operating and energetic performance of the assembly tractor-scarifier in different liquid ballasting and working depths

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