Simatupang, ErikaMurniatiSaputra,Sukemi Indra2013-02-052013-02-052013-02-05Arnalishttp://repository.unri.ac.id:80/handle/123456789/1928Erika Simatupang. Jur. 2012White oyster mushroom (Pleurotus ostreatus) is one of the many types of wood cultivated mushrooms. One medium oyster mushroom growing is sawdust. Excess use of sawdust as a growing medium such as easy to mixed with other ingredients as a nutritional supplement, and easily shaped and conditioned. This function is primarily the addition of rice sawdust a source carbohydrates, protein, fat, nitrogen (N) and vitamins, especially vitamin B complex.This study is an experiment that consists of 5 treatments arranged in completely randomized design (CRD), which consists of five standards are: B0 (0% sawdust dose of medium weight), B1 (5% of the dose of sawdust medium weight), B2 (dose sawdust 10% of medium weight), B3 (15% of the dose sawdust medium weight), B4 (20% of the dose of sawdust medium weight). Each treatment was repeated four times, with each unit there are 4 baglog trial, bringing the total baglog prepared weighing as much as 80 each baglog ± 1300 g. The data were analyzed using Analysis of Variance (ANOVA) and tested further by Duncans New Multiple Range Test (DNMRT) at the level of 5%. Parameters measured were early growth misellium, Pinhead onset, number of clumps of oyster mushroom, oyster mushroom fruit body number, diameter cap mushroom fruit bodies, fruits fresh weight loss, length of harvest and biological efficiency. The addition of rice sawdust with different doses tangible influence. Doses sawdust 15% of the weight of growing medium gives the highest production of oyster mushrooms is 103.6 grams.otherSawdustPowder PresetsWhite Oyster Mushroomsstudent Paper Post Degree