NAME : NWAGBARA, CHIDIEBERE NGOZI .(MSc)
DEPARTMENT : INDUSTRIAL MICROBIOLOGY
AFFILIATION : FEDERAL UNIVERSITY OF TECHNOLOGY OWERRI
This research was carried out to determine the yield performance of oyster mushroom on different substrates and the use of its spent substrate to improve crop yield. The different substrates used for Pleurotus ostreatus cultivation were sawdust, cassava peels, dry plantain leaves, sugar cane bargasses all mixed with rice bran. The physical and chemical properties of the spent mushroom substrate (sawdust + rice bran) were determined. Also proximate analyses of the crops produced from spent mushroom substrate (SMS) together with one from nitrogenous fertilizer were determined. The results showed that all the substrates produced oyster mushroom, with sawdust being the best and dry plantain leaves the least. The average yields in four flushes were sawdust, 700g; cassava peels, 475g; sugar cane bargasess, 552g and dry plantain leaves 270g. The percentage organic carbon, organic matter and nitrogen content of the SMS from sawdust were 4.469, 7.704 and 0.146 respectively. The percentage values of moisture, ash, fat, crude protein, and carbohydrate contents of organic crops ranged from 59.04-89.24%. 0.22-1.33%, 0.60-2.42%, 1.13-5.38 % and 3.44-35.26% respectively. This work suggested that materials considered as wastes can be of great benefit to humans and environment.
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