Studies Regarding Pneumatic Equipment for Sowing Small Seeds in Cups

Pandia, Olimpia; Saracin, Ion; Bozgă, I.; Tanasie, Ştefania Eliza

doi:10.1016/j.aaspro.2015.08.122

Cited by 3 publications

(2 citation statements)

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“…Lai et al [11] designed an ultra-narrow-row air-aspiration precision seed-metering device, and used discrete element software to evaluate the seedmetering device. Abdolahzare et al [12] proposed a test to assess seed spacing uniformity which was applicable in a field situation. In this method, a high-speed camera system was used to detect seed-falling trajectory, which was an effective factor on uniformity of seed spacing in both conditions of laboratory and field.…”

Section: Introductionmentioning

confidence: 99%

Optimized design of the pneumatic precision seed-metering device for carrots

Feng,

Sun,

et al. 2023

International Journal of Agricultural and Biological Engineering

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The small size, light weight, irregular shape, and impurities that characterize seed groups increase clogging tendencies in the traditional seed-metering device thereby making it difficult to achieve high-speed precision seeding. A pneumatic seed-metering device with good seed-filling performance for carrot was designed in this study. By analyzing the movement state of seeds in the device under the theoretical condition, it was concluded that the minimum critical negative pressure value of air chamber was 0.32 kPa, which provided a theoretical basis for simulation and testing. ANSYS 17.0 Software was used to simulate the shape of the seeding plate hole. By comparing the pressure, air flow stability between the suction surface and the plug removal surface of the convection field, it was concluded that the conical hole was optimal. A bench verification test was conducted on the device. The average qualified rate, missing rate, and replaying rate were 81.48%, 4.07%, and 14.45%, respectively, which provided a strong reference for the design of carrot precision seed-metering device.

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Section: Introductionmentioning

confidence: 99%

Optimized design of the pneumatic precision seed-metering device for carrots

Feng,

Sun,

et al. 2023

International Journal of Agricultural and Biological Engineering

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“…To decrease the influence of this drawback, scatter devices are needed, which in theory should create chaotically and evenly dispersed sowing. However, in such fields it is sometimes noticeable that the grain lay unevenly: there are local condensations and sparsities.For crops that need to be sown in one row, but must have a wide aisle, the issue of distributing seeds so that they do not interfere with each other and as much as possible use the nutrition area of the row arises.In many works, this problem is solved with the help of a seed drill, which, in comparison with the reel one, produces a much more precise sowing [4][5][6][7][8][9]. The seed drill is a unified machine designed for…”

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New seed sowing technique and equipment to raise level of crop yield

Bagautdinov

Gryazin

Kozlov

et al. 2018

Engineering for Rural Development

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Abstract. The purpose of the paper is to verify the theoretical assumption on the operability of the design of a new sowing device, which has a number of advantages in comparison with the existing ones. It is known that the shortcomings of the existing planting and sowing machines lead to considerable crop losses (uneven germination and weakened plants due to incomplete use of soil potential) and, as a consequence, losses of expensive planting materials. It is also known that the existing equipment and techniques cannot reduce the number of field vehicle movements, which leads to excessive compaction of the soil, a deterioration of its microstructure, and a decrease in fertility, as well as additional financial costs. To solve the existing problems of planting, a new technique is proposed. It is implemented on the basis of a pre-distributed planting material on a specially prepared tape. Such a technical solution allows sowing expensive planting material by the piece and in a strictly distributed sequence and, as a result, minimizing losses and ensuring a uniform depth of planting. The design of the sowing equipment is simplified and the adjusting works, as well as the cost of labour, are reduced. To confirm the theoretical assumptions, we developed a laboratory plant, and this paper presents the results of experimental work, which confirms high technological capabilities of the proposed equipment in terms of homogeneity of the seeding depth and its constructive simplicity. The presented technique based on the specially prepared tape material allows carrying out simultaneously both planting and additional agrotechnical measures, such as pointby-point application of a dosed fertilizer, which leads to an increase in the ecological compatibility of products, simultaneous soil cultivation with herbicides, etc.Keywords: sowing equipment, planting, crop yield, seeder. IntroductionSince ancient times, it is known that the quality of the crop depends on the quality and varietal properties of the planting material. It goes without saying that the harvest is much dependent on the care of crops. With the development of agricultural sciences and technology, it became clear that the process of sowing or planting is also very important.According to the existing seeding technologies, it is assumed that the grain/seed is transported to the seminal duct, through which it will "gravitate" into the soil. Theoretically, this method should place seeds in a uniformly distributed row and same depth.In practice, it turns out not quite so. First, because of the lumpy structure of the soil, a number of seeds fall deeper between the clumps or remain on the lumps themselves. As a result, we get an uneven depth of sowing. Seeds that are sowed deeper give late, and, as a rule, weak shoots. Seeds, which are not deep enough, shoot early and often undergo frost. As a result, we have about 7 % of crop losses [1].Secondly, for most machines based on the row seeding method, we also face an uneven distribution of seeds along the width of the row. T...

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Design and study of seeding devices for small selection seeding machines

Nemtinov

Kryuchin

et al. 2019

E3S Web Conf.

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In this paper, it is proposed to use a self-propelled pneumatic mini-seeder with replaceable mechanical sowing devices designed and manufactured using computer technologies, advanced software and threedimensional printing for seeds selection. As a result of the research, hightech operating devices for a grain-drill feed with screw and disk-pin continuous seed metering are designed and manufactured. Grain-drill feeds allow sowing of free-flowing and non-free-flowing seeds, when used as seed meters on self-propelled pneumatic mini-seeders for selection sowing of grass seeds. Analysis of laboratory results of and field studies of the proposed grain-drill feeds allowed to determine the qualitative indicators of their performance: at a disk rotation speed of up to 15 rpm a linear dependence of the seed supply on the rotation frequency is provided; in the field studies, the instability of bluegrass seeding did not exceed 8%. The highest performance of the screw is obtained at the angle of choke inclination of 30...35 degrees with the seeding instability indicator of 2.5...3.5%. The developed grain-drill feed will significantly reduce the range of seeders and expand the set of sown seeds of various agricultural plants with one brand of a grain-drill feed.

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Studies Regarding Pneumatic Equipment for Sowing Small Seeds in Cups

Cited by 3 publications

References 0 publications

Optimized design of the pneumatic precision seed-metering device for carrots

Optimized design of the pneumatic precision seed-metering device for carrots

New seed sowing technique and equipment to raise level of crop yield

Design and study of seeding devices for small selection seeding machines

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