Construção e avaliação do desempenho de três trilhadoras de arroz
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Data
2001
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Resumo
Among all field operations related to the rice crop, harvesting is one of the most important
due to its high cost and also because it directly affects grain yield and product quality. Harvesting
demands a great portion of the manual labor required in small farms, where the threshing operations
are also performed manually by impacting the plants against a hard surface. Mechanical threshing
not only improves labor efficiency but also reduces grain breakage during milling. The objective of
this study was to develop and evaluate the performance of three machines designed for threshing
upland and lowland rice cultivars, using three different operational procedures: intermittent plant
feeding, pedal operated; intermittent plant feeding, motor operated; and continuous plant feeding,
motor operated. In the trials, long and short stemmed plants were used as well as grains with
different moisture contents. The machine using the intermittent plant feeding system with motor
operation, showed greater threshing capacity than the other two. Short stemmed plants produced
higher threshing yields when compared to the long stemmed ones.
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Palavras-chave
Oryza sativa, Máquina, Colheita, Época de colheita, Oryza sativa, Harvesting time, Harvest, Harvesting machinery
Citação
SILVA, José G. da et al. Construção e avaliação de três trilhadoras de arroz. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 5, n. 2, p. 333-338, 2001.