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율무의 토양수분별 파종기와 질소시비방법에 따른 주요형질 변이
김용철,임수삼,김성만,이충렬,최인수,박현철 한국생명과학회 2003 생명과학회지 Vol.13 No.6
본 시험은 율무재배에 적절한 토양수분조건과 파종기 및 질소시비방법를 구명하기 위하여 토양수분은 자연강우에 의존하는 밭 상태의 대조구와 인위적으로 포화상태를 유지시키는 관개구로 구분하여 처리하였고, 파종기는 6월 10일, 6월 20일, 6월 30일에 각각 파종하였으며, 질소시비는 전량기비와 파종기 및 출수기에 50%씩 분시하는 방법 등으로 하여 율무의 생육과 수량 및 수량구성요소의 변화를 시험한 결과는 다음과 같다. 파종기가 빠를수록 출수 및 성숙기가 빨랐고, 출수일수는 파종기가 지연될수록 감소하는 경향이었으며 성숙일수는 처리간 차이가 인정되지 않았다. 토양수분은 관개구에서 자란 율무가 대조구에서 자란 율무에 비하여 간장과 경태는 컸으며, 파종기가 빠를수록 현저하게 증가하였고, 분얼수도 대조구에 비해 관개구에서 현저한 증가를 보였으며 만파할수록 분얼수가 감소하였다. 지상과 지하부의 생육은 관개구가 대조구에 비하여 왕성한 생육을 보였으며, 파종기가 지연될수록 현저하게 감소하는 경향이었다 개엽 광합성속도는 대조구에 비하여 관개구가 훨씬 높았으며, 엽고병 발병율은 관개구가 낮았다. 관개구가 대조구보다 천립중이 무거웠고 수량은 증가하였으며, 불임율은 관개구가 대조구보다 낮았고, 파종기가 빠를수록 천립중이 무거웠고 수량도 증가하였다. In order to establish the optimal soil moisture, seeding date and nitrogen fertilization, yield and its components grown at 3 different seeding dates and 2 nitrogen fertilizations were compared and analyzed in adaly(Coix lachyma-jobi L. var. mayuen). The results are summarized as follows: Heading date and maturity date were earlier in early seeding date than in late seeding date. Days to heading was shortened as the seeding date was late. Stem length, stem diameter, and tiller number were increased in irrigation than control, and were decreased as the seeding date was late. The top and the root dry weight were increased in irrigation than in control, and were decreased as the seeding date was late. Net photosynthetic rate was increased significantly in irrigation. Occurrance of leaf blight disease was much lower in irrigation than in control. 1000 grain weight and grain yield were higher in irrigation than in control, and were decreased as the seeding date was late. Rate of sterility was lower in irrigation than in control.
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土壤水分別 播種期와 窒素施肥方法이 율무의 光合成과 生育 및 엽고병에 미치는 影響
金容撤,李忠烈,崔仁洙,朴賢哲,金成萬,林銖三 밀양대학교 농업기술개발연구소 2000 農業技術開發硏究所報 Vol.4 No.1
In order to establish optimal seeding date and nitrogen fertilization of adlay in barley-dlay cropping system of south-eastern part of Korea, yield and its components of adlay grown under at 3 different seeding dates and 2 nitrogen fertilizations were compared and analyzed. In addition, edible nutriants of adlay grain were compared with rice and woheat, between upland and paddy cultivation, and among three cultivars. The results obtained are summarized as follow: 1.Heading date and maturity date was fasted later seeding date than early seeding. Days to heading was decreased as the seeding date was delayed. 2.Stem leagth, stem diameter and No. of tiller were increased irrigation than control(non-irrigation), and was decreased as the seeding date was delayed. 3.Top and root dry weight were increased moisture were decreased irrigation than control(non-irrigation), and was decreased as the seeding date was delayed. 4.Net photosynthetic rate was increased at treatment of irrigation. Key word : adlay, seeding daye, soil water content, photosynthesis, growth.
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