KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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Effects of Soil Surface Compaction on Emergence and Growth of Directed Seeded Ginseng in Paddy Field

인삼의 논 재배시 파종 후 진압처리가 출아율과 생육에 미치는 영향

  • Bong-Jae Seong (Ginseng & Medicinal Plant Research Institute, Chungnam Agricultural Research & Extention Service) ;
  • Moo-Geun Jee (Ginseng & Medicinal Plant Research Institute, Chungnam Agricultural Research & Extention Service) ;
  • Sun-Ick Kim (Ginseng & Medicinal Plant Research Institute, Chungnam Agricultural Research & Extention Service) ;
  • Jin-Woong Cho (Dept, of Crop Sciences, College of Agricultural & Life Sciences, Chungnam National University)
  • 성봉재 (충청남도 농업기술원 인삼약초연구소) ;
  • 지무근 (충청남도 농업기술원 인삼약초연구소) ;
  • 김선익 (충청남도 농업기술원 인삼약초연구소) ;
  • 조진웅 (충남대학교 농업생명과학대학 식물자원학과)
  • Received : 2022.10.24
  • Accepted : 2022.12.06
  • Published : 2022.12.01
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Abstract

This study was conducted to find out the changes in the growth and yield of ginseng and the changes in the soil of direct-seeded ginseng fields after applying different compaction strengths. As a result of surface soil compactions, the topsoil hardness increases as the strength of treatment increases in the first year but topsoil hardness increased only by applying 30 kg weight of compaction in the second year. The germination rate was significantly higher (79.4% and 79.1% at 25 kg and 30 kg, respectively) in 1st year after the application of soil surface compactions. The longest plant was 35.7 cm in 4- years old ginseng in the control and the height was 26.9 cm and 26.5 cm in the soil surface compactions of 25 kg and 30 kg, respectively. In addition, the higher weight of ginseng roots of 31.3 g and 30.3 g were observed after applying 25 kg and 30 kg compaction treatment, and the lowest root weight of 25.6 g was in the control. Therefore, it is shown that after sowing, applying the weight of 25 kg to 30 kg for soil surface compaction is appropriate for better yield in direct seeded cultivation of ginseng at paddy fields.

본 연구는 논 직파재배시 인삼 종자를 직파한 후 진압강도를 달리하여 진압을 처리한 후 인삼토양의 삼상 변화와 인삼의 생육 및 수량에 미치는 영향을 구명하기 위하여 수행하였고, 얻어진 결과를 요약하면 다음과 같다. 파종 후 이랑에 대해 진압강도를 달리하여 처리 한 후 연차별로 토양의 경도를 조사한 결과 1년차에는 진압강도가가 무거워질수록 표토의 경도가 증가하였으나, 2년차에는 30 kg 진압강도에서 경도가 증가하였다. 진압강도별 직파재배의 출아율은 1년생 인삼은 25 kg과 30 kg의 진압강도 처리에서 각각 79.4%와 79.1%로 유의적으로 높았으며, 대조구와 15 kg의 진압강도 처리는 74.5%와 75.3%를 보였다. 초장은 진압처리를 하지 않은 4년생 인삼은 35.7 cm로 가장 길었고, 25 kg과 30 kg 진압강도 처리시 각각 26.9 cm와 26.5 cm로 유의적으로 작았다. 또한 4년생 인삼뿌리의 생체중은 진압강도를 25 kg과 30 kg을 처리하였을 때 각각 31.3 g과 30.3 g으로 가장 높았고, 진압을 하지 않은 대조구가 25.6 g으로 가장 낮았다. 따라서 논에서 인삼을 직파하여 재배하고자 할 때 종자를 파종한 후 진압을 약 25~30 kg정도의 진압강도로 진압을 실시하는 것이 인삼 뿌리 수량에 효과적이라고 생각된다.

Keywords

Acknowledgement

본 연구는 농촌진흥청에서 주관하는 지역특화작목기술개발과제(과제번호 PJ010966)의 연구비 지원에 의해 이루어진 결과로 이에 감사드립니다.

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