Physicochemical Properties of Compost Substrates of Spondias Mombin Wood Dust with Cow Dung for the Cultivation of Edible Mushroom Pleurotus Ostreatus

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Author(s) Olabode O.O. | Adegunloye D.V. | Akinyele B. J. | Akinyosoye F.A
Pages 579-588
Volume 5
Issue 11
Date November, 2016
Keywords Animal Wastes, Edible, Wood Waste, Substrate, Vermiculture

Composting process prepared by passive pile method was carried out using wood dust of Spondias mombin and cow dung as booster. Eudrillus eugiene which are fast breeders and active feeder on organic matter that are high in nitrogen was used for the vermiculture, Substrates were prepared with varying ratio of wood dust:animal waste and kept on outdoor shelf for a period of 10 weeks for composting and vermicomposting. The temperature reached a maximum of 38.0 0C in 4 days of the process in composted substrate at ratio 9:1 of wood dust: cow dung and dropped to 25.5 0C in vermicomposting substrate of Spondias mombin and cow dung ratio 6:4 at 40 and 70 days. The pH also reached a maximum of 8.75 on composted wood dust of Spondias mombin and cow dung ratio 9:1 from day 40 through day 50. Compost increased in Carbon: Nitrogen ratio of substrate, reduced the fat content, and increased crude protein, ash and fibre content with more carbon from wood waste at the end of the period of composting. Composted wood dust of S. mombin and cow dung ratio 5:5 recorded increase in percentage nitrogen from 5.85±0.01% to 6.09±0.04%, as the ratio of wood dust of S. mombin decreased. Composting also increased the Iron, copper and Zinc content of the final product. Composting of substrates with high Carbon:Nitrogen ratio encourages cultivation of mushroom. Vermicomposting showed to produce substrates with desired nutrient that supports the growth of fungi It therefore makes the attempt to cultivate tropical mushroom Pleurotus ostreatus more desirable.
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