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| Paixão,Carla S. S.; Alcântara,Aline S.; Voltarelli,Murilo A.; Silva,Rouverson P. da; Tavares,Tiago de O.. |
| ABSTRACT: Information on harvester performance is important in the management and optimization of mechanized agricultural systems. In this sense, the aim of this study was to monitor the operation quality of soybean mechanical harvesting in different plot shapes by means of statistical process control. The harvest was carried out in an agricultural area of a farm located in Uberaba, MG, Brazil, with an experimental design based on the assumptions of statistical quality control and 18, 28, and 24 replications for irregular, rectangular, and trapezoidal plots, respectively. The variables and/or quality indicators of harvester performance were forward speed, engine speed, cylinder speed, and concave opening. The lowest variation occurred in the irregular plot... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grain harvester; Harvester machine performance; Statistical quality control; Glycine max (L.) Merrill. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000400689 |
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| Santos,Adão F. dos; Alcântara,Aline S.; Corrêa,Lígia N.; Queiroz,Renata F. de; Silva,Rouverson P. da. |
| ABSTRACT Although peanut harvesting results in significant losses, it has rarely been investigated. Thus, this study aimed to analyze the interference of different pod moisture contents on peanut harvesting and their influence on the process quality based on losses and impurities. An experiment was performed in a peanut seed producing area, in Luzitânia, district of Jaboticabal - SP, using average moisture contents of 15% and 20% in the pods; 16 and 14 data points were collected for the 20% and 15% treatments, respectively. The experimental design used statistical process control (SPC) to analyze the collected variables. The results indicated higher losses in the platform than in the machine. In addition, the harvest quality was not affected by the pod... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Harvest losses; Harvest impurities; Peanut gathering; Adjustment of machines. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000100098 |
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| Alcântara,Aline S.; Prado,Jéssica P. do; Corrêa,Rafael de G.; Silva,Rouverson P. da; Voltarelli,Murilo A.; Vieira,Roberval D.. |
| ABSTRACT The success of soybean cultivation depends on several factors, one which is the use of high-quality seeds, which can guarantee growth of the desired plant population. The objective of this study was to monitor possible failures during the seed production process, and to determine the association between germination and tetrazolium tests through tools of Statistical Process Control (CEP). The experimental design was based on premises of the CEP, using percentage of germination, seed viability, mechanical damage, bed bug, and moisture as indicators of quality. It is possible to detect flaws in the soybean production process through control charts, as well as through germination and tetrazolium tests; results indicated that germination failures are... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max L.; Control charts; Quality indicators; Seed viability. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018001000689 |
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| Kazama,Elizabeth H.; Silva,Rouverson P. da; Ormond,Antônio T. S.; Alcântara,Aline S.; Vale,Welington G. do. |
| ABSTRACT Cotton price is determined by the quality of the fiber, which can be damaged at the time of harvest, in addition to quantitative losses of non-harvested plume. Therefore, this study aimed to analyse soil and plant losses, and the quality of cotton fiber in relation to five harvest speeds (5, 6, 7, 8, and 9 km h-1) in the spindle system (picker). The experiment was conducted in Lucas do Rio Verde, Mato Grosso, Brazil. A randomized complete block design was used on plots of 0.9 ha, with 20 plot, five speeds, and four blocks. The results showed that the studied speeds did not significantly influence losses on the soil and plant, or the quality of the cotton fiber; therefore, the highest speed may be recommended. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Picker; Spindles system; Fiber characteristics; Gossypium hirsutum. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000800583 |
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