Mardhiansyah, Muhammad2014-05-222014-05-222014-05-22978-602-18936-0-9wahyu sari yenihttp://repository.unri.ac.id/xmlui/handle/123456789/6317The experiment aimed to evaluate the effect of application of Trichoderma spp. during composition processing of the quality of resulted compos as the growth medium component of pine seeds. Compos made from organic debris as the main component and fresh cow dung decomposer. Pellets of three species of Trichoderma i.e T.Koningii (T1), T.reesei (T13) dan T.harzianum (T27) were substituted 0.1% from weight of compos into the compos at day 10, 20, 30 during the decomposition of organic debris by containerizing the treated composes in nylon gauze container and inoculated in the compos mass. At day 70 the compos were harvest and used as the growth medium component of pine seeds. Results showed that application of T1 at day 20 lowered the C-N ratio at amount of 16.8%. Application T27 showed the best top-root ratio of seedling (4,49).enTrichoderma sppcompospine seddlingUR-Proceedings