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NTIS 바로가기농약과학회지 = The Korean journal of pesticide science, v.18 no.4, 2014년, pp.376 - 382
심창기 (농촌진흥청 국립농업과학원 농업환경부 유기농업과) , 김민정 (농촌진흥청 국립농업과학원 농업환경부 유기농업과) , 김용기 (농촌진흥청 국립농업과학원 농업환경부 유기농업과) , 홍성준 (농촌진흥청 국립농업과학원 농업환경부 유기농업과) , 김석철 (농촌진흥청 국립농업과학원 농업환경부 유기농업과)
The soluble loess-sulfur mixture allowed standing to remove insoluble component materials for five weeks after manufacturing. We decreased the pH level of soluble loess-sulfur mixture at pH 1.0 modified with decreasing 25% sodium hydroxide than original content. The pH ranges of soluble loess-sulfur...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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개선황토유황합제의 pH값은 얼마인가? | 개선황토유황합제는 기존의 황토유황합제에 비해 가성소다의 양이 25% 줄었으나 여전히 pH가 11.7로 토마토에 1000배로 희석하여 사용할 경우 45일 지난 토마토의 어린잎과 꽃눈에 약해를 주는 것으로 나타났다(Fig. 1). | |
순수한 유황의 물성 특징은? | 순수한 유황은 매우 안정하여 물에 녹지 않은 결정성 황색 고체이다. 인체에 직접적으로 투여될 경우 독성이 강하여 부작용을 초래할 수 있다고 보고되어 있다(Coghlin 1944; Kandylis, 1984; Kim et al. | |
개선황토유황합제의 높은 pH를 개선하는 방법으로 수행한 것은? | 1). 본 시험 에서는 이러한 황토유황합제의 pH를 개선하는 방법으로 친환경유기농자재로 허용되어 있는 현미식초(pH 2.57)의 첨가 양을 조절하여 황토유황합제의 pH를 pH 7부터 pH 11까지 조정하였다(Tabl 3, Fig. 2). |
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