벼 육묘일수가 지연된 어린모 이앙재배시 질소분시 방법이 생육 및 수량에 미치는 영향

• 영문명: Nitrogen Management for Infant Rice Seedlings with Extended Nursery Duration by Delayed Transplanting
• 발행기관: 한국작물학회
• 저자명: 한희석(Hee-Suk Han) 양운호(Woon-Ho Yang) 박정화(Jeong-Hwa Park) 윤영환(Young-Hwan Yoon) 김제규( Je-Kyu Kim) 양원하(Won-Ha Yang) 박종욱(Jong-Wook Park)
• 간행물 정보: 『한국작물학회지』제53권 제3호, 239~243쪽, 전체 5쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2008.09.30

영문 초록

This experiment was carried out to elucidate the appropriate split application method of nitrogen fertili-zer in infant rice seedlings which show poor seedling growth resulted from extended seedling nursery duration more than 12 days. The 16 day-old infant rice seedling (DOIRS) showed poor seedling growth than 8 day-old seedling. Early growth of transplanted 16 DOIRS was poor, compared with that of transplanted 8 DOIRS. However, the poor plant growth estimated by plant height, tiller number, and the number of newly developed roots was compensated by 70-0-30% (basal-tillering-panicle initiation) of nitrogen split application. In 70-0-30% plots among split nitrogen application methods, tiller number, biomass, and leaf area at heading stage of rice showed the highest values. Sixteen DOIRS plots showed lower grain filling and 1000-grain weight, resulted in lower yield of rice than 8 DOIRS plots in the same nitrogen split application. However the lower yield in 16 DOIRS plots was recovered by 70-0-30% of nitrogen split application method to a similar level in 8 DOIRS plots in which nitro-gen was split applied by 40-30-30%.

목차

재료 및 방법

결과 및 고찰

적요

인용문헌

키워드

rice infant rice seedling seedling duration nitrogen split application