KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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Change of Growth and Yield Characters in Rice at Different Transplanting Densities under Agrivoltaics

영농형 태양광 발전 시스템 하부 벼 재배 시 재식밀도별 생육 및 수량변화

  • Woon-Ha Hwang (Crop National Institute of Crop Science, RDA) ;
  • Min-Ji Lee (Crop National Institute of Crop Science, RDA) ;
  • Jae-Hyeok Jeong (Crop National Institute of Crop Science, RDA) ;
  • Hoe-Jung Jeong (Crop National Institute of Crop Science, RDA) ;
  • Wan-Gue Sang (Crop National Institute of Crop Science, RDA) ;
  • Seong-Yul Jang (Crop National Institute of Crop Science, RDA) ;
  • Dong-Won Kwon (Crop National Institute of Crop Science, RDA) ;
  • Woo-Jin Im (Crop National Institute of Crop Science, RDA) ;
  • Heok-Jin Park (Crop National Institute of Crop Science, RDA) ;
  • Ji-Hyen Lee (Crop National Institute of Crop Science, RDA)
  • 황운하 (농촌진흥청 국립식량과학원) ;
  • 이민지 (농촌진흥청 국립식량과학원) ;
  • 정재혁 (농촌진흥청 국립식량과학원) ;
  • 정회정 (농촌진흥청 국립식량과학원) ;
  • 상완규 (농촌진흥청 국립식량과학원) ;
  • 장성율 (농촌진흥청 국립식량과학원) ;
  • 권동원 (농촌진흥청 국립식량과학원) ;
  • 임우진 (농촌진흥청 국립식량과학원) ;
  • 박혁진 (농촌진흥청 국립식량과학원) ;
  • 이지현 (농촌진흥청 국립식량과학원)
  • Received : 2024.03.25
  • Accepted : 2024.04.08
  • Published : 2024.06.01
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Abstract

Recently, interest in renewable energy development has been increasing to promote carbon-neutral policies. Agrivoltaic is a solar power generation facility with the potential to aid in meeting carbon-neutral policies. It has the advantage of generating electricity while farming takes place, but it also has the disadvantage of reducing crop yield and cultivation safety. We analyzed the rice yield, quality, and stem growth characteristics according to different transplanting densities under agrivoltaics. Under agrivoltaics, the number of rice panicles was reduced by the shading effect, but the reduction was lower under 60 hills than under 80 and 100 hills. Brown rice perfect ratio was increased under 60 hills under agrivoltaics. Brown rice yield did not differ significantly between 60 and 80 hills under agrivoltaics. However, stem dry weight by unit(mg/cm) in each internode showed highest under 60 hills compared to 80 and 100 hills under agrivoltaics. Therefore, 60 hill density was considered appropriate to ensure cultivation safety and yield when cultivated rice under agrivoltaics.

영농형 태양광 하부에서 재식밀도를 달리하여 벼를 재배하고 생육 및 수량 변화를 분석한 결과는 다음과 같다. 1. 영농형 태양광 하부 벼 재배 시 차광에 의해 포기당 이삭수가 감소하였으며 재식밀도가 감소하면서 감소폭은 낮아지는 경향이었다. 2. 현미완전립 분석결과 일반재배에서는 재식밀도에 따른 큰 차이는 없었으나 영농형 태양광 하부에서 재식밀도가 낮아짐에 따라 현미완전립 비율이 증가하는 경향이었다. 3. 일반 노지에서 벼 80주 이앙에 비해 영농형 태양광 하부에서 60주 및 80주로 이앙 시 완전미수량성은 차이가 없었으며 100주 이앙시 추적형에서 크게 감소하였다. 4. 영농형 태양광 하부에서 60주로 벼 이앙 시 줄기단위 길이별 무게가 80주 및 100주 이앙에 비해 크게 증가하는 경향이었다.

Keywords

Acknowledgement

본 논문은 농촌진흥청 공동연구사업(국책기술개발사업, 과제번호: PJ016780001)의 지원에 의해 수행된 결과입니다.

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