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http://dx.doi.org/10.5333/KGFS.2003.23.1.043

Effects of Rare Earth and Nitrogen Application on the Growth and Nitrate Content of Chicory  

Hur, S.N. (The Institute of Agricultural Science & Technology, Chonbuk National University)
Li, S.Y. (The Institute of Agricultural Science & Technology, Chonbuk National University)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.23, no.1, 2003 , pp. 43-48 More about this Journal
Abstract
The effect of rare earth(RE) at three difference levels of nitrogen on the growth and nitrate content of chicory (Cichorium intybus L.) were studied in terms of leaf size, fresh and dry weight increase, and chlorophyll and nitrate content grown in plastic pots within glasshouse. Leaf size was enlarged as the level of nitrogen applied was high, and leaf within, length, and thickness of leaf were increased by RE treatment showing significant difference at high nitrogen(N+1) plot. As the level of nitrogen applied was high, as fresh and dry weight per plant was increased significantly(p<0.05), and sprinkling cabbage with RE increased fresh and dry matter yield to 2∼12, 4∼6.2% more, respectively. Dry matter content of Chinese cabbage was increased by RE sprinkling. At all levels of nitrogen fertilized chlorophyll contents were increased by RE treatment. As the level of nitrogen was high, as the content of chlorophyll was highly increased by RE. Nitrate was accumulated more at high level of nitrogen application, but nitrate was decreased by RE application, 40% decrease at very high nitrogen plot(N+2). RE stimulated the growth of chicory with high chlorophyll content, and showed the possibility producing high quality agricultural products low in nitrate content.
Keywords
Rare earth; Chicory; Leaf size; Chlorophyll; Nitrate; Nitrogen;
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