• Title/Summary/Keyword: Seeder

Search Result 81, Processing Time 0.019 seconds

Barley Growth and Labor-Saving Efficiency as Using Barley Seeder Synchronized with Rice Harvesting (벼 수확동시 보리파종기 이용에 따른 보리생육특성 및 생력효과)

  • 김양길;이중호;서재환;박종철
    • KOREAN JOURNAL OF CROP SCIENCE
    • /
    • v.49 no.3
    • /
    • pp.179-183
    • /
    • 2004

  • This study was conducted to investigate the effects of using barley seeder attached to rice harvest combine that could be used in rice harvesting and barley seeding simultaneously on the growth characteristics of barley and labor-saving efficiency. In developed seeding system, burley seeding was earlier about 5 days than in the conventional system, because of conducting rice Harvesting and barley seeding simultaneously. The germination of barley seed after seeding was protected from drought damage by the rice straw covering. Among the growth characteristics of barley using developed seeding system, the number of spikes per m$^2$ was lower than that of conventional system, but others showed longer culm length, hove kernel numbers per spike and heavier 1,000 kernel weight than those of conventional system. Developed seeding system resulted in about 57% labor-saving efficiency compared with conventional system. The cost of whole works from seeding to harvest of barley was saved about 8% compared with conventional system. A total of income increased about 16% than that of conventional system.

  • PDF KSCI

Studies on Planting Density and Labor - Saving in Machine Sowing for Astragalus membranaceus Bunge (황기 기계파종시(機械播種時)의 적정(適正) 재식밀도(栽植密度)와 성력효과(省力效果))

  • Kim, Young-Guk;Chang, Young-Hee;Lee, Seung-Tack;Yu, Hong-Seob
    • Korean Journal of Medicinal Crop Science
    • /
    • v.4 no.2
    • /
    • pp.157-162
    • /
    • 1996

  • Experiments were conducted from 1994 to 1995 to understand the effects of the labor-saving seeding and planting density on growth and root yield of Astragalus membranaceus. The drilling seeder reduced seeding time than the hand seeding; It takes 3. 5hrs/l0a to seed by drilling seeder while 33. 0hrs/l0a by hand seeding, which labor reducing rate was 89. 4 %. Emergence rate in the drilling seeder was increased 17% than in the hand seeding, so the root yield were increased 23% to 136. lkg/l0a in using drilling seeder compared to 110. 3kg in hand seeding. On the effect of planting density on the growth characteristics plant height was long in dense planting and stem diameter was thick in spacious planting. Root diameter and dry root weight root per plant were decreased in dense planting and root yield was highest in optimum planting densities $(6\;row\;(15cm)\;{\times}\;10cm)$ in the harvest of 1 year old plants in Astragalus membranaceus. The gross profit were increased 23% to 1,933 thousand won per l0a in the drilling seeder compared to 1,566 thousand won in the hand seeding, also the managing costs were reduced 18% to 406 thousand won per l0a in the drilling seeder than 494 thousand won per l0a in the hand seeding.

  • PDF

The Study on the Design Factors of the Groove-Roller Seed Metering Device for Seeder of Foxtail millet & Sorghum

  • Choi, Il Su;Kang, Na Rae;Kim, Young Keun;Jun, Hyeon Jong;Choi, Yong;Kang, Tae Gyoung;Hyun, Chang Sik;Lee, Sang Hee;Kim, Jin Gu;Yu, Seoung Hwa;Chung, Sun Ok
    • Journal of Biosystems Engineering
    • /
    • v.43 no.4
    • /
    • pp.303-310
    • /
    • 2018

  • Purpose: This research was conducted to determine the design factors of a seed-metering device for the development of a seeder. The device allows the seeder to sow precisely one to three seeds of foxtail millet and sorghum. To obtain fundamental information regarding the design of the seed-metering device, examination of the physical properties of foxtail millet and sorghum was conducted. Methods: Based on the results of an adaptability test using an existing seeder with foxtail millet and sorghum, an experimental roller-type seed-metering device was made. The seeding factors considered during the experiment were the width, length, and depth, as well as the shape of the groove in the seed-metering roller. By adapting an analysis of variance, the experimental results of the seeding factors were analyzed. Results: The measured results of the respective lengths and widths of the seeds were 2.11 and 1.64 mm for foxtail millet, and 3.68 and 3.32 mm for sorghum, respectively. The weight of 1,000 seeds was 2.43 g for foxtail millet and 17.5 g for sorghum. The seeds were of an elliptical shape, considering the length and width. A sieve analysis showed that the size distribution of foxtail millet was quite regular whereas that of sorghum was irregular. Conclusions: The seeding results showed that the rates of incorrect planting were low when the groove of the roller-type metering device is an elliptical type. To sow one to three seeds, the groove of roller-type metering devices $2.0mm{\times}4.0mm{\times}1.5mm$ ($width{\times}length{\times}depth$) for foxtail millet, and $4.0mm{\times}8.0mm{\times}3.0mm$ and $4.5mm{\times}8.0mm{\times}3.0mm$ ($width{\times}length{\times}depth$) for Sorghum.

  • https://doi.org/10.5307/JBE.2018.43.4.303 인용 PDF KSCI