Hernandez Garcia, E. M.; Romero Morales, J. J.; Sanchez Purihuaman, M. N.; BARTUREN QUISPE, A. P.; Cordova Rojas, L. M.; Huangal Scheineder, S.; Vasquez Llanos, S. A.; Carreno Farfan, C. R.

Substrate formulations based on Oryza sativa (rice) husk supplemented with sugar industry waste bagasse and Saccharum officinarum L. filter cake were used as an alternative substrate to cultivate mushrooms such as Pleurotus osteatrus, being essential the comparison of the productivity parameters carried out as carpophores produced per productive cycle, productive period, biological efficiency and production rate, in addition to the physicochemical analysis of the lignocellulosic substrates, which in the case of organic matter, nitrogen, phosphorus and potassium are in the ranges of 28.37-35.20%; 1.28-1.45%; 0.06-1.74%; 0.46-1.17%, respectively. Regarding productivity parameters, carpophores with a total weight of 83, 99.67 y 101 g were harvested in a ratio of rice husks (CA) with sugar cane bagasse (BC) of 66.7:33.3, 50:50 and 25: 75, respectively. In the case of biological efficiency, it was 27.66-50.50 % with rice husk plus sugarcane bagasse and 8.67-9.51 % with rice husk plus filter cake compared to 8.56 % in the rice husk control and the production rate was 0.58-0.92. Based on these findings, it was found that the addition of sugarcane bagasse significantly favoured the productivity of Pleurotus ostreatus in the rice husk, obtaining not only a higher yield but also a higher biological efficiency, in addition to improving the nutritional quality of the fungi, where the highest protein production was obtained in rice husks supplemented with sugarcane bagasse in the 25: 75 proportion.