Seeder performance under different pressures of vaccum and fuel consumption to soybean seeds

Lauriano, Sidnei Marcelino; Sousa, Saulo Fernando Gomes de; Dias, Patrícia Pereira; Correia, Tiago Pereira da Silva; Silva, Paulo Roberto Arbex

doi:10.14393/bj-v33n5a2017-33656

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…Foreign scholars have studied the working mechanism of the vacuum-type seeding metering device. Some vacuum-type seeding metering devices have been used for seeds with high spherical [7][8][9] . The super rice precision seeder is mainly based on the vacuum-vibration seeding metering device in China, which primarily uses the reciprocating vibration to excite the supply seed tray [10] .…”

Section: Introduction mentioning

confidence: 99%

Design and experiment on the air-blowing and vibrating supply seed tray for precision seeders

Zhiqiao

Chen

et al. 2022

International Journal of Agricultural and Biological Engineering

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Vacuum-vibration precision seeding technology is a crucial technology that affects the industrialization process of super rice plug seedlings. To solve the problems that the vibrating supply seed tray structure in a vacuum-vibration precision seeder caused the vibration of the whole machine and the decline of the seeding eligible rate under high frequency and large amplitude vibration, it is important to design a new supply seed tray structure. This research proposed a method to make the seeds "boiling" under the combined effect of air blowing and vibration, and designed the air-blowing and vibrating supply seed tray structure. FLUENT was used to analyze fluid motion inside the supply seed tray and optimize the structure parameters of the supply seed tray. The maximum airflow velocity was determined when the inlet air pressure was 22 kPa, the number of air inlets was 2, and the diameter of the holes at the bottom of the supply seed tray was 2 mm. Comparative experiments were carried out to prove the air-blowing and vibrating supply seed tray structure could reduce the vibration frequency by 1.5 Hz and decrease the amplitude by 0.25 mm. The mathematical regression models between the inlet air pressure, vibration frequency, amplitude, and seeding performance indexes were established by orthogonal experiments. Through the optimization operation and bench tests, it was determined that when the inlet air pressure was 19.49 kPa, the vibration frequency was 9.00 Hz, and the amplitude was 2.65 mm, the eligible rate, replay rate, and hole rate could reach 93.56%, 3.35%, and 3.09%. The experimental results were generally consistent with the predicted values. The research confirmed that the air-blowing and vibrating supply seed tray could improve the eligible rate while reducing the vibration frequency and amplitude of the vacuum-vibration tray precision seeder. It also provided a necessary basis for precision seeding technology.

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Section: Introduction mentioning

confidence: 99%

Design and experiment on the air-blowing and vibrating supply seed tray for precision seeders

Zhiqiao

Chen

et al. 2022

International Journal of Agricultural and Biological Engineering

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“…O consumo de combustível por unidade de área semeada, também é afetado pelos ajustes, (LAURIANO et al, 2017). As variáveis do ambiente e ajustes das semeadorasadubadoras afetam seu desempenho podendo acarretar alteração na dosagem dos produtos pelos mecanismos (DE QUEIROZ et al, 2017) e a demanda de força para tração (DA SILVA et al, 1998).…”

Section: Operação De Semeaduraunclassified

Progressão da semeadura de >i<Glycine max>/i< L. em regiões do Mato Grosso: uma contribuição ao estudo do planejamento de sistemas mecanizados

Junior¹

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Glycine max L. sowing progression in regions of Mato Grosso: a contribution to the study of mechanized systems planning Soybean sowing has been occurring early in the state of Mato Grosso, aiming to increase the second crop area. Sowing planning is important for soybean yield and losses may occur due to the anticipation of sowing under conditions not favorable for crop growth. In planning, the operational rhythm is estimated, using methodologies based on the estimation of the available time in which administrative issues such as working hours, working on Sundays and holidays and edaphoclimatic constraints that affect the number of working days are considered. Monitoring the evolution of soybean implementation and providing information on the start and end dates and the values of the sown area on a regional scale has contributed to decision making and has been officially carried out for years. Given the challenge for the planning of mechanized systems and the availability of historical series on the performance of the sowing operation in Mato Grosso, the objective of this work was to ascertain through the among of work required, the relationship between the sowing rate actually performed, with the planned intensity, ie the operational rhythm (RO). The methodology for estimating the intensity of sowing performed, called the sowing rate used data from historical series of the follow-up of the operation, and linear regressions were performed in 6 harvests in the middle north and southeast macroregions of Mato Grosso. To calculate the time available to perform the operation were collected climate data and characteristics of soil types. The calculation of the number of improper days (NDimp), those restrictive due to climate issues, met the criteria with the maximum rainfall on the previous day and on the day of sowing less than 10 mm and presence of soil moisture between 40 to 90% of the capacity water available (CAD). Sensitivity analysis of the effects of rainfall and soil water strip on NDimp was performed in both macroregions. The results indicated a sowing rate and RO values of 3.02 and 9.14% per day in the macroregions, that is, there was a discrepancy between the planning values with the RO estimation and those observed in both macroregions. Moreover, in the scenario with maximum allowable rainfall of 10 mm on the day and the previous day and soil water range of 20 to 70% of CAD, the lowest RO occurred in both macroregions. It was concluded that the sowing progression presents distinct intensities during the cultivation period, with high intensity in the central period of the crop and most of the area sowed in a short period. The seeding operation is carried out under inadequate soil moisture conditions.

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Seeder performance under different pressures of vaccum and fuel consumption to soybean seeds

Cited by 2 publications

References 15 publications

Design and experiment on the air-blowing and vibrating supply seed tray for precision seeders

Design and experiment on the air-blowing and vibrating supply seed tray for precision seeders

Progressão da semeadura de >i<Glycine max>/i< L. em regiões do Mato Grosso: uma contribuição ao estudo do planejamento de sistemas mecanizados

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