CULTURE MEDIUM FOR RAISING SEEDLING

摘要

PROBLEM TO BE SOLVED: To provide a culture medium for raising seedlings capable of affording a sufficient bound state not only in a surface layer part but also in an inner layer part by rough temperature control and further contributing to an improvement of environmental hygiene of a field. SOLUTION: This culture medium 10 for raising the seedlings comprises a pulverized chaff group 12, a binder 14 and an element group 16 and is formed into a mat state by carrying out thermal compression forming. A temperature region for enabling the forming is extended by using two kinds of core-sheath type fibers having different melting point characteristics as the binder 14. Thereby, the sufficient bound state is obtained not only in the surface layer part but also in the inner layer part by the rough temperature control. The accumulation of the binder 14 in the field can be eliminated by using both the two kinds of biodegradable core-sheath type fibers.