Assessing the effect of composting cassava peel based substrates on the yield, nutritional quality, and physical characteristics of Pleurotus ostreatus (Jacq. ex Fr.) Kummer

Abstract

Cassava peel based substrate formulations as an alternative substrate were used to grow mushrooms. The effect of two compost heights, three composting periods on the mycelia growth, physical characteristics, yield, and nutritional qualities of Pleurotus ostreatus (Jacq. ex Fr.) Kummer was studied. Mean mycelia growth of 16.2 cm after a period of seven (7) weeks was the best for 1.5m compost height. Cap diameter and stipe length differed significantly (𝑃 < 0.05) with the compost heights (0.8m and 1.5m). The yield on compost height of 1.5m, composted for 5 days, differed significantly (𝑃 < 0.05) from that of 0.8mand gave increasing yields as follows: cassava peels and manure, cassava peels only, cassava peels and corn cobs (1 : 1 ratio), and cassava peels and corn cobs (1 : 1 ratio) with chicken manure. Composting periods (3 and 7 days) gave varying yields depending on the compost height. Based on the findings an interaction of 1.5mcompost height and 5 days composting period on cassava peels and corncobs (1 : 1 ratio) with chicken manure produced the best results. The nutritional quality of the mushrooms also differed significantly (𝑃 < 0.05), indicating that cassava peels could be used as a possible substrate in cultivation of mushroom