Yield and Bioactive Component on Different Compost Amounts and Cultural Methods of Saururus chinensis $B_{AILL}$

To obtain the basic information for commercial process and high quality production of Saururus chinensis, the yield and the contents of available component were determined at different compost application amounts and cultural methods. Fresh weight of aerial part was increased by increasing of the compost application amounts. The contents of quercetin, quercitrin and tannin were the highest in the compost 2,000kg/10a. Fresh weight of aerial part at different cutting times was no difference between one harvesting/year and two harvesting/year in S. chinensis. On occasion of two harvesting/year, the contents of component was more collected on July 16 than collected on October 16. Fresh weight of aerial part was less in the field than in the greenhouse culture method, but the contents of quercetin, quercitrin and tannin were more in the field than in the greenhouse culture method.