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Analysis of Environment Factors in Pleurotus eryngii Cultivation House  

Yoon, Yong-Cheol (Faculty of Agri. Systems Eng., Gyeongsang National University(Institute of Agriculture & Life Science))
Suh, Won-Myung (Faculty of Agri. Systems Eng., Gyeongsang National University(Institute of Agriculture & Life Science))
Lee, Hyun-Woo (Dept. of Agri. Eng., Kyungpook National University)
Publication Information
Journal of Bio-Environment Control / v.12, no.4, 2003 , pp. 200-206 More about this Journal
Abstract
Pleurotus eryngii(King oyster) is one of the most promising mushrooms produced on the domestic farms. The quality as well as quantity of Eryngii is sensitively affected by micro climate factors such as temperature, relative humidity, $CO_2$ concentration, and light intensity. To safely produce high-quality Eryngii all the year round, it is required that the environmental factors be carefully controlled by well designed structures equipped with various facilities and control systems. At the commercial mushroom cultivation house(A,B), this study was carried out to find out reasonable range of each environmental factor and yield together with economic and safe structures influencing on the optimal productivity of Eryngii. this experiment was conducted for about two-month from Nov. 11, 2002 to Dec. 30, 2002 in Eryngii. cultivation house-A, B. Ambient temperature during the experiment period was not predominantly different from that of a normal year. The capacity of the hot water boiler and the piping systems were not enough. Maximum air temperature difference between the upper and lower growth stage during a heating time zone was about 2~3$^{\circ}C$. The max. and min. relative humidity were ranged approximately 60~100%, and average relative humidity was ranged approximately 80~100%. And $CO_2$concentration increased until maximum 1,600~1,800 ppm with the passing growing period. The illuminance in cultivation house was widely distributed from 20lx to 160 lx in accordance with position, and it was maintained lower than the recommended illuminance range 100~200 lx. The average yield per bottle was about 67~85g. But the optimal productivity will be evaluated by considering the quality and quantity of mushroom production, energy requirements, facility construction and management cost, etc.
Keywords
mushroom; temperature; cultivation house; humidity; $CO_2$ concentration; illuminance;
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