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.
본 시험은 인삼비료인 약토를 대체 하기 위하여 인삼비료인 약토 외에 4종의 퇴비를 공시하여 약토대체 가능성을 검토하였다. ‘인삼약토 성분기준표’에 비교해 보면 약토퇴비가 기준치와 비슷하여 가장우수 하였고, PL퇴비와 HJ퇴비는 인산, 카리, 칼슘, 마그네슘 및 EC의 함량이 높았고, 팽이버섯퇴비는 인산, 마그네슘 및 EC의 함량이 높았고, 볏짚우분 퇴비는 인산, 카리 및 마그네슘 함량이 높았다. 상치종자를 이용한 발아율 및 초기생육과, C/N율을 이용한 부숙도 판정 시험에서, HJ퇴비, 팽이버섯퇴비 및 볏짚우분퇴비가 약토보다 C/N율은 높았고, 발아율은 낮았으며, 초장은 짧아 부숙이 다소 덜된 것으로 생각된다. 퇴비종류별 묘삼의 지상부 출아율은 약토>팽이버섯퇴비>PL퇴비>HJ퇴비>볏짚우분퇴비 순으로 약토가 가장 양호하였고, 8월 초순의 지상부 생존율은 약토>PL퇴비 >팽이버섯퇴비>HJ퇴비>볏짚우분퇴비 순으로 약토가 가장 양호 하였다. 양직묘 생산을 위해서는 완숙된 퇴비사용의 필요성을 확인 하였고, 앞으로 완숙된 PL퇴비와 팽이버섯퇴비의 검토 필요성이 제시되었다
