Utilization of Job's-tears Husk, Peanut Shell, Lawn Grass and Porous Stone for Cultivation of Oyster Mushroom(Pleurotus ostreaus(Jacq. ex Fr)Quél.)

Abstract

Utilization of agricultural waste such as Job's-tears husk, peanut shell, lawn grass and rice bran was studied for cultivation of oyster mushroom(Pleurotus ostreaus(Jacg. ex Fr) Quél.)in order to solve the scarcity of sawdust. (1)Practical yield of mushroom was not obtained unless rice bran was added to the substrate. (2)The optimum water content of Job's-tears husk, peanut shell and lawn grass substrates in the presence of 16% of rice bran were 50, 60 and 65%, respectively. (3)Incorporation of 16% of rice bran with the basic ingredient significantly improved the yield. Peanut shell and lawn grass were considered as good as sawdust for the cultivation of oyster mushroom. (4)The substrate composed of rice bran and porous stone gave yields that ranged from 82 to 92% of dry rice bran weight. These results indicate that Pleurotus ostreaus is able to fruit by utilizing rice bran only. (5)Porous stone used was easily recovered and able to employ for re-cultivation.