한국작물학회지 (KOREAN JOURNAL OF CROP SCIENCE)

  • 제57권4호
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  • Pages.337-342
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  • 2012
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  • 0252-9777(pISSN)
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  • 2287-8432(eISSN)
한국작물학회 (The Korean Society of Crop Science)
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파종방법과 피복작물이 조의 생육과 잡초발생에 미치는 영향

Effects of Cover Crops and Sowing Methods on Weed Occurrences, Growth and Yield in Foxtail Millet Fields

  • 투고 : 2012.08.30
  • 심사 : 2012.10.26
  • 발행 : 2012.12.31
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초록

본 연구에서는 안정한 조 생산은 위한 친환경적 유기재배를 위한 잡초관리 방법 개선과 효율적인 작부체계 개선을 위하여 조의 파종법과 피복작물인 헤어리베치와 호밀이 조의 생육과 수량에 미치는 영향을 알아보았다. 1. 출수일 비교시 비닐피복 이식구에서 4일, 헤어리베치 이식구에서 3일 먼저 출수하였다. 초장은 헤어리베치 이식구, 비닐피복 이식구와 직파구, 헤어리베치 직파구 순으로 92.4%, 86.9%, 50.2%, 24.6%로 차이를 보였으며 가장 작은 호밀 직파구와는 -63.7%의 차이가 나타났다. 엽록소 함량과 엽록소형광에서는 비닐피복구와 헤어리베치구 높게 나타났다. 2. 헤어리베치구에서 방제가가 70% 이상으로 높았으며, 화본과와 광엽 잡초의 분류 비교시 헤어리베치구에서는 화본과와 광엽잡초 모두 90% 이상의 억제율을 나타났으며 호밀구에서는 화분과 잡초에서는 47% 이상, 광엽잡초에서는 90% 이상의 억제효과가 나타났다. 3. 수량비교에서는 헤어리베치 이식구>비닐피복 이식구>호밀구 이식구${\fallingdotseq}$무처리 이식구>헤어리베치 직파구>비닐피복 직파구>호밀구 직파구${\fallingdotseq}$무처리 직파구 순으로 나타났다.

This study was conducted to evaluate the weed suppressing effects of different cropping system including hairy vetch and rye cover crops, polyethylene plastic film, and transplanting film mulching in direct sowing and transplanted foxtail millet field in 2011. Crop growth and development and weed occurrences in the fields were examined to know the efficiency of proposed cropping system. In polyethylene film mulching treatment, heading date of foxtail millet was earlier by 4 days than control, on the other hands, rye cover crop mulching delayed heading date by 8 days. Besides the effect of cover crop on the heading of foxtail millet, the residues changed growth characteristics. Plant height of foxtail millet was increased by 92.4% at hairy vetch treatment although the height of was reduced by 63.7% in the rye cover crop treatment. Hairy vetch treatment showed beneficial effects on foxtail millet growth reduced the occurrences of grasses and broadleaf weeds higher than 90%, as compared to control in foxtail millet fields. While rye cover crop treatment showed poor foxtail millet growth reduced less strongly grasses and broad-leaf weeds by 47% and 90%, respectively. At harvest, yield of foxtail millet was greater in order of hairy vetch cover crop > polyethylene film mulching > rye cover crop ${\fallingdotseq}$ control in both transplanted and direct sown fields.

키워드

참고문헌

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