Analysis of Environmental Factors in Pleurotus eryngii Cultivation House of Permanent Frame Type Structure
학회지: Journal of Bio-Environment Control 15(2), 125 - 137쪽
저자: 윤용철, 서원명, 이인복
개요
Pleurotus eryngii 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, CO2 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 houses of permanent frame type (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-year from Nov. 2003 to Dec. 2005 in cultivation house. 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. Because the capacity of electric heater and air circulation were not enough, air temperatures in cultivation house before improvement of system were maintained somewhat lower than setting temperature, and maximum air temperature difference between the upper and lower growth stage during a heating time period was about 5.1. But the air temperatures after system improvement were maintained within the limits range of setting temperature without happening stagnant of air. Air temperature distribution was generally distributed uniform. Relative humidity in cultivation house before improvement was widely ranged about 44-100%. But as the relative humidity after improvement was ranged approximatεly 80-100%, it was maintained within the range of relative humidity recommended. And CO2 concentration was maintained about 400~3,300 mg•L-1 range. The ilIuminance in cultivation house was widely distributed in accordance with position, and it was maintained lower than the recommended iIIuminance range 100-200 Ix. The acidity of midium was some lower range than the recommend acidity range of pH 5.5 ~ 6.5. The yield was relatively ununiform. In case of bottle capacity of 1,300cc, the mushroom of the lowest grade was less than 3%. The consumption electric energy was quite different according to the cultivation season. The electric energy consumed during heating season was much more than that of cooling season.
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