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아열대채소 공심채 시설재배시 관수개시 토양수분포텐셜에 따른 생육 및 수량 KCI 등재

Growth and Yield Response of Water Spinach (Ipomoea aquatica Forsk.) to Different Soil Water Potential as Irrigation Starting Point in Plastic Film House Soils

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한국국제농업개발학회지 (The Journal of the Korean Society of International Agriculture)
한국국제농업개발학회 (The Korean Society Of International Agriculture)
초록

This experiment was conducted to establish proper irrigation method for water spinach, subtropical vegetable in plastic film house soils to prepare to future global warming of the Korean peninsula. The evaluation of irrigation with 4 different levels as −20, −40, −50 kPa as a starting point(water potential) were compared to –33 kPa as control. All treatments were ended when water potential reached at –10 kPa respectively. The amount of irrigated water, N content, plant growth and fresh yield were investigated. As a result, water potential was correlated positively with irrigation starting point in cultivation period and irrigation times, but the amount water irrigated per time, N content of harvested plant, fresh and dry yield showed negative correlation. The contents of crude protein, P, K, Ca, Fe of harvested part were most high in –50 kPa treatment. We concluded that –50 kPa was optimal irrigation starting point for water spinach cultivation in unheating plastic film house.

목차
재료 및 방법
 결과 및 고찰
  관수회수, 관수량과 식물체 질소함량의 변화
  식물체 수분함량과 수량성 비교
  수확경엽의 조단백질과 무기성분함량 비교
 적 요
 REFERENCES
저자
  • 최병열(경기도농업기술원) | Byoung-Rourl Choi
  • 박인태(경기도농업기술원) | In-Tae Park
  • 조광래(경기도농업기술원) | Kwang-Rae Cho
  • 주옥정(경기도농업기술원) | Ok-Jung Ju
  • 김영순(경기도농업기술원) | Young-Soon Kim
  • 김천환(국립원예특작과학원 온난화대응농업연구소) | Chun-Hwan Kim
  • 성기철(국립원예특작과학원 온난화대응농업연구소) | Ki-Cheol Seong