Influência Da Inclinação Do Terreno E Velocidade De Operação Na Semeadura De Sorgo Por Semeadora De Fluxo Contínuo

Correia, Tiago Pereira da Silva; Kato, Lia Harumi; Gomes, Anderson Ravanny de Andrade; Souza, Saulo Fernando Gomes; Silva, Paulo Roberto Arbex

doi:10.17224/energagric.2015v30n4p331-337

Cited by 3 publications

(2 citation statements)

References 8 publications

(7 reference statements)

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“…When evaluating sorghum seeds (Sorghum spp. ), no mechanical damage was verified when increasing the seeder speed from 4 to 7 km h -1 (Correia et al, 2015). On the other hand, during sowing, the travel speed increase reduced the emergence in canola (Brassica napus) (Harker et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Quality of sunflower seeds in function of thickness classification and sowing under speed variation of the seeder-fertilizer

et al. 2022

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The objective was to evaluate the quality of sunflower seeds classified according to their thickness and passed through the seeder-fertilizer dosing system under variation of the travel speed. A lot of M734 was classified by thickness passing the seeds through a set of oblong-hole sieves and two thicknesses were selected. A portion of the seeds with only the commercial classification was also reserved, named as non-classified. The biometric evaluation was done and the sowing was carried out at 5.0, 6.5, 8.0, 9.5 and 11.0 km h -1 . The quality of the seeds was evaluated through: germination and first germination count, average time and percentage of emergence in sand, accelerated aging and tetrazolium test. The classification by thickness reduce the coefficient of variation of the length, width, thickness, and mass but seeds classification does not affect seed vigor and viability after sowing under speed variation. In the higher studied speed, the passage of seeds through the dosing mechanism reduces germination. The vigor is affected at 6.5 km h -1 speed by the accelerated aging test. According to the emergence in sand and tetrazolium test, speed variation does not affect the vigor and viability of sunflower seeds.

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Section: Resultsmentioning

confidence: 99%

Quality of sunflower seeds in function of thickness classification and sowing under speed variation of the seeder-fertilizer

et al. 2022

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“…While evaluating different seed metering devices, Almeida et al (2003) did not find significant results regarding the generation of damages compared with the control, differing from these results. However, Correia et al (2015), during the evaluation of sorghum seed distribution with constant flow seed metering devices, identified the promotion of damages during the sowing density.…”

Section: Table 2 Physical Characteristics Of the Rice Seeds Of The Sc...mentioning

confidence: 99%

Use of graphite in the distribution of rice seeds with constant flow seed metering device

Savi

Zimmermann

Jasper

et al. 2023

Rev. bras. eng. agríc. ambient.

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The performance of the seed metering mechanism is evaluated according to the deposition uniformity during its operation and interference in the seed quality. The study aimed to assess the influence of graphite on the deposition homogeneity and the break index of rice seeds, distributed with a constant flow metering device with different exposition rates of the fluted roller. The rice seeds were treated with 4 g of graphite per kilogram and had a sowing density of 100 kg ha-1. The completely randomized design was arranged in a double factorial scheme (2 × 5). The first factor was the use of graphite, and the second was the fluted roller exposition rate (20; 40; 60; 80; and 100%). The sowing density and the coefficient of variation were collected by gravimetry using a load cell. The use of graphite as a solid lubricant decreased the mechanical damage. Nevertheless, it also reduced the homogeneity in seed distribution. The increase of the roller exposition rate negatively interfered with the coefficient of distribution variation and positively with the break index of rice seeds, not influencing the sowing density. In this way, the use of graphite as a solid lubricant for sowing small grains distributed from the fluted rotor becomes promising.

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Experimental study of the drying of papaya seeds in a spouted bed and simulation of the fluid dynamics behaviour of the material

Santos

Rodriguez

Bicalho

2023

Braz. J. Chem. Eng.

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Influência Da Inclinação Do Terreno E Velocidade De Operação Na Semeadura De Sorgo Por Semeadora De Fluxo Contínuo

Cited by 3 publications

References 8 publications

Quality of sunflower seeds in function of thickness classification and sowing under speed variation of the seeder-fertilizer

Quality of sunflower seeds in function of thickness classification and sowing under speed variation of the seeder-fertilizer

Use of graphite in the distribution of rice seeds with constant flow seed metering device

Experimental study of the drying of papaya seeds in a spouted bed and simulation of the fluid dynamics behaviour of the material

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