Evaluation of Oyster Mushroom (Pleurotus ostreatus) Production Using Water Hyacinth (Eichhornia crassipes) Biomass Supplemented with Agricultural Wastes

Table 5

Benefit-cost ratio of the different treatments (substrate composition) used in this study for oyster mushroom cultivation, 2021, Bahir Dar, Ethiopia.

Treatments	Total weight of mushroom harvested (g)	Total price (in ETB) of the mushroom harvested (B)	Cost (in ETB) of substrate per kg (C)	B:C
T1	957.84	287.352	13.33	21.56
T2	350.09	105.027	6.66	15.77
T3	494.45	148.335	1.00	148.34
T4	830.54	249.162	10.24	24.33
T5	754.14	226.242	7.16	31.60
T6	660.33	198.099	4.08	48.55
T7	417.99	125.397	5.24	23.93
T8	439.17	131.751	3.83	34.40
T9	463.79	139.137	2.41	57.73

The price for 1 kg mushroom during the study period was Birr 300 at the local market, and the costs of wheat and teff straws were Birr 13.33 and 6.66, respectively. B: C = benefit-cost ratio: ETB = Ethiopian Birr (currency): Estimated labor cost to collect water hyacinth from the field (the lake).