Korean Journal of Environmental Agriculture (한국환경농학회지)
- Volume 4 Issue 2
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- Pages.102-107
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- 1985
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- 1225-3537(pISSN)
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- 2233-4173(eISSN)
Effect of Water Management and Lime Application on the Growth and Copper Uptake of Paddy Rice
수도(水稻)의 동피해(銅被害)에 대한 물관리(管理) 및 석회물질(石灰物質)의 효과(效果)
- Kim, Kyu-Sik (Agricultural Sciences Institute, R.D.A.) ;
- Kim, Bok-Young (Agricultural Sciences Institute, R.D.A.) ;
- Lee, Min-Hyo (Agricultural Sciences Institute, R.D.A.) ;
- Han, Ki-Hak (Agricultural Sciences Institute, R.D.A.) ;
- Kim, Maun-Soo (Agricultural Sciences Institute, R.D.A.)
- Published : 1985.12.30
Abstract
A pot experiment was conducted to find out the effects of water management, slaked lime and wollastonite on growth and Cu uptake of rice at Cu added soil. The soil was adjusted to 0, 50, 100 and 200 ppm concentration of Cu. The application amount of slaked lime was the lime requirement plus 150 ㎏/l0a and wollastonite 200 ㎏/10a, respectively. The copper concentration in soil which reduced yield significantly was 133.1 ppm for submersion and 136.8 ppm for intermittent irrigation. The application of lime and wollastonite reduced Cu content in brown rice as well as increased rice yields compared to that of no lime. The copper content in plant was increased with increasing soil Cu concentration, however, reduced with submersion and application of slaked lime, and increased with increasing the ratio of Cu/Ca+Mg equivalent in soil.
수도(水稻)에 대(對)하여 토양(土壤)에서 동(銅)의 농도(濃度)를 달리하고 개량제(改良劑)로서 무시용(無施用) 소석회(消石灰)(중화량(中和量)+150kg/10a) 및 규회석(硅灰石)(200 kg/10a)을 시용(施用)한 후(後)에 간단관수(間斷灌水)와 상시담수(常時湛水)로 조절(調節)하여 pot 시험(試驗)한 결과(結果)는 다음과 같다. 1) 수량(收量)은 동(銅) 처리농도(處理濃度)가 높을수록 감수(減收)되었으며 유의성(有意性)있는 토양중(土壤中) 감수농도(減收濃度)는 간단관수(間斷灌水) : 133.1 ppm 상시담수(常時湛水) : 136.8 ppm이었다. 2) 동(銅) 200 ppm인 토양(土壤)에서 소석회(消石灰) 시용(施用)으로 26
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