Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Effects of nitrogen fertigation on cucumber growth and nitrate in Soil under plastic film house

시설재배지에 질소관비 농도가 오이생육과 질산태 질소에 미치는 영향

  • 강성수 (농촌진흥청 국립농업과학원 토양비료과) ;
  • 김명숙 (농촌진흥청 국립농업과학원 토양비료과) ;
  • 공명석 (농촌진흥청 국립농업과학원 토양비료과) ;
  • 김유학 (농촌진흥청 국립농업과학원 토양비료과) ;
  • 오택근 (충남대학교 농업생명과학대학 생물환경화학과) ;
  • 이창훈 (농촌진흥청 국립농업과학원 토양비료과)
  • Received : 2014.11.10
  • Accepted : 2014.12.01
  • Published : 2014.12.31
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Abstract

To evaluate the impact of nitrogen fertigation on crop growth and $NO_3$-N concentration in the soil solution, field experiment for cucumber cultivation during spring and fall season were carried out in on-farm located in Byeongcheon-myeon, Chunan-si, Chungcheonnam-do. Supplying nitrogen of 120-150 mg/L by fertigation device into soil per week reached to maximum yields of cucumber fruits. However, cucumber growth did not show any significant difference between nitrogen levels. Nitrogen supply of 400 mg/L, highest N levels, did not affect cucumber growth. Difference between green values of cucumber leaves using RGB scores were closely related with cucumber yields, and therefore, this results suggests that green values of cucumber leaves could be used as a way of determining the application rates of nitrogen for cucumber cultivation period under fertigation system.

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References

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