• Title/Summary/Keyword: Mulching Film

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Effect of Reflective Film Mulching on Growth of Tomato Plants in Greenhouse Cultivation (반사필름 멀칭이 토마토 생육에 미치는 영향)

  • 조일환;김완순;김태영;허노열;권영삼
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 1997.05a
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    • pp.92-97
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    • 1997
  • 멀칭이란 토양표면을 여러 가지 재료로 피복하는 것을 말하며, 이용성으로는 생육촉진, 한해경감, 동해경감, 잡초억제, 토양보호, 과실의 품질향상 등이 있고, 멀칭 재료도 투명필름, 흑색필름, 볏집, 알미늄반사필름 등이 있다. 또한, 광량이 부족한 겨울철 시설재배에서는 시설내 입사광을 될 수 있는 대로 많이 할 필요가 있다. (중략)

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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;Lee, Byung-Jin;Chun, Hyun-Sik;Cho, Young-Son
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.59 no.2
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    • pp.162-166
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    • 2014
  • 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.

Manufacturing Multi-degradable Food Packaging Films and Their Degradibility (복합분해성 플라스틱 식품포장 필름의 제조 및 분해성)

  • Chung, Myong-Soo;Lee, Wang-Hyun;You, Young-Sun;Kim, Hye-Young;Park, Ki-Moon
    • Korean Journal of Food Science and Technology
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    • v.35 no.5
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    • pp.877-883
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    • 2003
  • Multi-degradable master hatch (M/B) was prepared and 0.05 mm polyethylene (PP) food packaging films containing 0, 10, and 20% M/B were manufactured by inflation film processing. The films were exposed to UV radiation, fungi, and heat in order to observe their photolysis, biodegradability, and thermal degradability, respectively. While pure PP film maintained more than 70% of its original elongation after 8 weeks of UV radiation, an almost perfect loss in the elongation of PP film containing 20% M/B was observed. Significant decreases in elongation of PP films by heat treatment $(68{\pm}2^{\circ}C)$ were also found in samples containing the multi-degradable M/B. By observing changes in film surface after the inoculation of fungi using scanning electron microscopy (SEM), the biodegradability of plastic film could be accelerated with the addition of multi-degradable M/B. The results of the mulching test in yard showed that adding multi-degradable M/B can effectively degrade plastic films in natural environmental conditions without interrupting the growth of plants.