| 摘要 |
PURPOSE:To obtain a greenhouse, by constituting the greenhouse of a heat generating part for supplying heat thereto, main heat source containing a water holding material containing microorganisms, nutriments, water holding material and thermogenic controlling material mixed therein and auxiliary heat source, such as heater. CONSTITUTION:A heat generating part 2 is constituted of a main heat source 3 and an auxiliary heat source 6 and heat generation in fermentation of microorganisms is utilized as the main heat source to provide a constant quantity of heat for a long period. When the outside temperature is extremely lowered, the auxiliary heat source, such as heater, is used. The main heat source is constituted by containing a mixture of the microorganisms which are thermogenic substances 5, nutriments, water holding material and thermogenic controlling material in a container 4. |
