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http://dx.doi.org/10.5142/JGR.2003.27.1.024

Effect of Several Kinds of Composts on Growth Status of Aerial Parts in Ginseng Seedlings  

Lee, Gab-Soo (Youngju Agricultural Technology Extension Center)
Lee, Sung-Sik (KT&G Central Research Institute)
Chung, Jae-Dong (Department of Horticulture, College of Agriculture)
Publication Information
Journal of Ginseng Research / v.27, no.1, 2003 , pp. 24-31 More about this Journal
Abstract
This experiment were conducted to select cheaper and more favorable compost among several kinds of composts which were produced by companies, farmers etc. instead of Yakto. Yakto was similar to Standard Yakto in the content of inorganic salts, but PL and HJ composts contained more P$_2$O$\_$5/, K$_2$O, CaO and MgO content compared with Standard Yakto and EC in Yakto was also higher than Standard Yakto did, but the phosphorus, magnesium content and EC of Mushroom compost was higher than that of Standard Yakto. On the other hands, Rice straw compost contained higher contents of phosphorus, potassium and magnesium than Yakto did. Germination rate and early growth of lettuce and C/N ratio were tested for checking decomposed degree. The compost of HJ, Mushroom and Rice straw revealed higher C/N ratio, lower germination rate and shorter shoot length than Yakto showed. It was guessed that these composts were not decomposed enough. Emergence and survival rate of ginseng seeds in Yakto were the highest, but its germination in the composts of Mushroom, PL, HJ and Rice straw, in order, was decreased, and its survival rate in the composts of PL, Mushroom, HJ and Rice straw, in order, was decreased. It was concluded that fully decomposed manure should be used and it needs to Investigate perfect decomposed composts of PL and Mushroom instead of Yakto.
Keywords
Yakto; Standard Yakto; compost; inorganic salts; EC;
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