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Effects of PE Mulching and Planting Densities on Growth and Yield of Foxtail Millet (Setaria italica Beauvois)

조의 PE 멀칭 및 재식밀도가 생육 및 수량에 미치는 영향

  • Jeon, Seung-Ho (Research Center for Seed Utilization, Gyeongnam National University of Science and Technology) ;
  • Lee, Byung-Jin (Research Center for Seed Utilization, Gyeongnam National University of Science and Technology) ;
  • Chun, Hyun-Sik (Division of Agronomy & Medicinal Plant Resources, Gyeongnam National University of Science & Technology) ;
  • Cho, Young-Son (Research Center for Seed Utilization, Gyeongnam National University of Science and Technology)
  • 전승호 (경남과학기술대학교 종자실용화 연구소) ;
  • 이병진 (경남과학기술대학교 종자실용화 연구소) ;
  • 전현식 (경남과학기술대학교 농학.한약자원학부) ;
  • 조영손 (경남과학기술대학교 종자실용화 연구소)
  • Received : 2014.02.21
  • Accepted : 2014.04.08
  • Published : 2014.06.30

Abstract

This study was conducted to evaluate effects of planting densities ($60{\times}5cm$, $60{\times}10cm$, $60{\times}15cm$) and PE mulching (polyethylene film mulching, non- mulching) on growth and yield of foxtail millet in drained paddy field for 2 years. In PE plots, culm length, culm diameter and fresh weight were higher than control plot. Additionally, spike length, seed weight per hill and thousand seed weight were also higher in PE plot. The yield of foxtail millet were increased with 104% and 112% at PE plot. Culm diameter was highest at $60{\times}15cm$ plot with 8.90 and 8.06 mm, however, culm length was highest at $60{\times}5cm$ plot with 130, 142 cm in $1^{st}$ and $2^{nd}$, respectively. Plant height was higher by the increase of planting density. As plant density decreased, that spike length and seed weight per hill were increased. Yield of planting density were highest at $60{\times}10cm$ plot $298kg{\cdot}10a^{-1}$, $436kg{\cdot}10a^{-1}$ yearly, respectively that it were in order of $60{\times}10cm$ plot > $60{\times}5cm$ plot > $60{\times}15cm$ plot.

본 연구에서는 조의 생산량 증대와 자급률 향상을 위한 체계적인 재배기술을 확립하기 위한 기초자료를 얻고자 재식밀도 및 PE 멀칭에 따른 생육 및 수량에 미치는 영향을 알아보았다. 1. PE 멀칭에 따른 간장에서 1년차 및 2년차 모두 PE 멀칭구에서 137 cm, 145 cm 길게 나타났으며 지상부생체중에서도 PE 멀칭구에서 높은 유의성을 보이며 무겁게 나타났다. 간경에서는 7.59 mm로 2년차 무멀칭구에서 굵게 나타났다. 2. 재식밀도에 따른 간장은 재식밀도가 가장 높은 5 cm처리구에서 130 cm 가장 길었으며 10 cm처리구 > 15 cm처리구 순으로 나타났으나, 간경에서는 간장과 반대로 재식밀도가 낮을수록 굵어지는 것으로 나타났다. 지상부생체중은 10 cm처리구에서 1443, $2263kg{\cdot}10a^{-1}$으로 높은 값이 나타났다. 3. 수량구성요소를 보면 이삭장, 종실중 및 천립중 연차간 모두 PE 멀칭구에서 길거나 무겁게 나타났으며 유의성 차이가 있는 것으로 나타났으며 재식밀도에서는 이삭장 및 이삭당 종실중에서 재식밀도 낮을수록 길거나 무겁게 나타났다. 그러나 수량에서는 연차간 모두 10 cm처리구에서 $298kg\;10a^{-1}$, $436kg\;10a^{-1}$ 으로 가장 높게 나타났다.

Keywords

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  1. Effects of Polyethylene Film Mulching and Planting Densities on Growth and Yield of Proso Millet (Panicum miliaceum L.) vol.60, pp.2, 2015, https://doi.org/10.7740/kjcs.2015.60.2.212
  2. Effects of Seeding Date and Polyethylene Film Mulching on the Yield Potential and Agronomic Characteristics of Proso Millet (Panicum miliaceum L.) in Miryang, Korea vol.61, pp.4, 2016, https://doi.org/10.7740/kjcs.2016.61.4.283
  3. Effect of Planting Density and Seeding Date on the Tiller Aspect and Growth Characteristics of Proso Millet (Panicum miliaceum L.) vol.29, pp.4, 2016, https://doi.org/10.7732/kjpr.2016.29.4.511