Velocidade periférica do disco em mecanismos dosadores de sementes de milho e soja

Dias, Vilnei de Oliveira; Alonço, Airton dos Santos; Carpes, Dauto Pivetta; Veit, André Augusto; Souza, Lucas Barros de

doi:10.1590/0103-8478cr20121201

Cited by 13 publications

(15 citation statements)

References 10 publications

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“…Unlikely, Dias et al (2014) observed no significant differences on the percentage of acceptable, multiple and faulty spaces between maize seedlings for the investigated metering mechanisms and their interaction with velocity.…”

Section: Discussioncontrasting

confidence: 69%

Maize Sowing Speeds and Seed-Metering Mechanisms

Ormond¹,

Furlani²,

Oliveira³

et al. 2018

JAS

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The intensifying use of machines in agriculture to increase operational capacity requires investments in more powerful and automated machines capable of working at higher speeds to meet the demands of agricultural activities. The objective of this study was to evaluate the sowing quality of a second crop maize using a pneumatic sowing machine equipped with two seed-metering devices at different displacement speeds. The statistical design was a randomized block design arranged in 6 × 2 factorial, with 4 replications, totaling 48 experimental plots. Where it was tested two seed-metering mechanisms from different manufacturers denominated A and B, and 6 displacement speeds of approximately 2.0; 4.7; 6.5; 9.1; 10.3 and 12.3 km h -1. The seed-metering mechanisms were compared by mean test while displacement speeds were compared by regression plots. The initial and final plant populations, seed depth, seedling longitudinal distribution (normal, faulty and double spacing) and grain yield were also evaluated. Displacement speed and seed-metering devices showed significant interaction only for the percentages of normal, faulty, and double spacings. The initial and final population presented an isolated effect for both the seed-metering devices and velocities. The seed depth showed an isolated velocity effect. The grain yield showed a significant isolated effect from the analyzed seed-metering devices. The seed-metering device B operating at lower speeds had better performance in the sowing process.

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Section: Discussioncontrasting

confidence: 69%

Maize Sowing Speeds and Seed-Metering Mechanisms

Ormond¹,

Furlani²,

Oliveira³

et al. 2018

JAS

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“…These results corroborate the quality of distribution obtained by DIAS et al (2014) on a bench with carpeted belt and by WEIRICH NETO et al (2012b) in four properties and two agricultural seasons, with the distribution system working without clearance.…”

Section: Resultssupporting

confidence: 86%

“…When the metering system was adjusted and with a horizontal seed plate, acceptable spacing were 90.8%, which are close to values observed by DIAS et al (2014), who studied the quality of soybean distribution on a bench with carpeted belt. As the space between the base and intermediate base was increased, values obtained reached 69.8%.…”

Section: Resultssupporting

confidence: 83%

“…Working with different tangential velocities of metering plates of corn and soybean seeds on a carpeted belt, DIAS et al (2014) obtained the best distribution at a tangential velocity of 0.09 m s −1 with about 5% of faulty and multiple spacing and 90% of acceptable spacing. When studying corn sowing in a no-tillage system with and without mechanical dry matter management in four properties and two agricultural seasons, WEIRICH NETO et al (2012b) 5.5% of faulty, 2.6% of multiple, and 91.6% of acceptable spacing.…”

Section: Introductionmentioning

confidence: 99%

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Quality of Seed Distribution at Different Spaces Between Base and Intermediate Base

et al. 2017

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ABSTRACT:The aim of this study was to analyze the influence of space between the base and intermediate base on quality of seed distribution with a horizontal seed plate. The experiment was carried out in 2012 at the Laboratory of Agricultural Mechanization of the State University of Ponta Grossa -PR, Brazil, using a sowing simulation device. The experimental design was completely randomized design with four treatments and seven replications. Treatments consisted of spaces (0, 1, 2, and 3 mm) between the base and intermediate base. Replications were defined by 250 spacing between seeds. Corn (Zea mays L.), soybean (Glycine max L. Merrill), and sorghum (Sorghum bicolor Moench) seeds were tested. The analyzed variables were faulty, multiple and acceptable spacing. By increasing the space between base and intermediate base, quality of seed distribution was reduced for all species.

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“…Among the different types of feeder mechanisms, the most important are of horizontal alveolar discs and the pneumatics (Dias et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Distribution of Maize Seed in a Seeding Line Prototype Using Microcontrolled Data Acquisition Systems

2017

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ABSTRACT:The aim of this study was evaluate the longitudinal distribution of maize seeds using a seeding line prototype, whit a microcontroller data acquisition system, at different speeds and types of horizontal feeder discs. Initially it was constructed a prototype simulator of seeding line, in the laboratory, and mounted two systems of microcontroller data acquisitions with infrared sensors for maize seeds counting. A test was conducted in a completely randomized design in split plots with factorial scheme of treatments 5 x 2 x 2, being the parcel two types of microcontroller data acquisition systems (infrared sensors in parallel and an diffuse infrared sensor), the factors were two feeder discs of maize seeds (inclined and normal) and five sowing speeds (3.0, 4.0, 5.0, 6.0, and 8.0 km h -1 ), with three replications, totaling 60 plots. The results showed that the data acquisition systems presented efficiency higher than 93% in the perception of the seeds. The lower speeds provided a seed distribution closer to the desired. The spacing average error between seed with the microcontroller data acquisition system with diffuse sensor was 0.0206 meters and the system with infrared sensors in parallel was 0.0158 meters.

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Velocidade periférica do disco em mecanismos dosadores de sementes de milho e soja

Abstract: Palavras

Cited by 13 publications

References 10 publications

Maize Sowing Speeds and Seed-Metering Mechanisms

Maize Sowing Speeds and Seed-Metering Mechanisms

Quality of Seed Distribution at Different Spaces Between Base and Intermediate Base

Distribution of Maize Seed in a Seeding Line Prototype Using Microcontrolled Data Acquisition Systems

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