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Author Sobrinho, Teodorico Alves ♦ Filho, Homero Scalon ♦ Souza, Cristiano M. A. De
Source Directory of Open Access Journals (DOAJ)
Content type Text
Publisher Sociedade Brasileira de Engenharia Agrícola
File Format HTM / HTML
Date Created 2013-08-31
Copyright Year ©2005
Language English ♦ Spanish ♦ Portuguese
Subject Domain (in LCC) S1-972
Subject Keyword Agriculture ♦ Soil disaggregating implement ♦ Arrancador de mandioca ♦ Cassava up root ♦ Perdas ♦ Losses ♦ Afofador de solo
Abstract Estudou-se o desempenho operacional de dois equipamentos na colheita da mandioca. Um afofador do solo e um arrancador de mandioca foram avaliados. Analisaram-se a patinagem das rodas motoras, as perdas de produto, os danos mecânicos provocados às raízes e a capacidade de campo dos conjuntos trator-equipamento. Depois da passagem dos conjuntos, as raízes inteiras colhidas e que permaneceram no solo e com danos mecânicos, foram separadas e pesadas. O conjunto trator-arrancador apresentou melhor dinâmica de corte, penetração no solo e menor patinagem das rodas. Não foram observadas perdas de raízes para os conjuntos avaliados. Os equipamentos apresentaram semelhantes danos mecânicos às raízes. O conjunto trator-afofador apresentou capacidade de campo 25% superior ao conjunto trator-arrancador. Entretanto, como o conjunto trator-afofador não deixa as raízes expostas e não possui dispositivo de corte frontal da parte aérea das plantas, foi observado aumento de 32% no tempo necessário para as operações de corte e separação das raízes. O desempenho operacional do conjunto trator-arrancador foi superior ao conjunto trator-afofador.The operational performance of two equipments for the cassava harvest was studied. A soil disaggregating implement and an up root implement were evaluated. The wheel slip, the losses, the mechanical damage caused in roots and the field capacity of the tractor-implement systems were analyzed. In each test, the whole roots and the roots with mechanical damages were separated and their mass were obtained. Tractor-up root system showed the best dynamic of cut and soil penetration, which was considered the smallest wheel slip. No root losses were observed for the two systems. Between implements there was not difference for mechanical damages caused in roots. The tractor-disaggregating implement system presented field capacity of 25% upper than tractor-up root system. However, as tractor-disaggregating implement system did not leave roots exposed and it did not have a frontal device of plant pruning, it was observed an increase of 32% on necessary time for cutting and roots separation. The tractor-up root system provided higher operational performance.
ISSN 01006916
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 2005-08-01
e-ISSN 01006916
Journal Engenharia Agrícola
Volume Number 25
Issue Number 2
Page Count 8
Starting Page 557
Ending Page 564


Source: Directory of Open Access Journals (DOAJ)