| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heating device of farm soil which can efficiently perform cultivation and growing of field crops by warming soil of such as a farm on the whole, from a bottom part and a side part, and can perform heat disinfection of the soil using together with solar heat in summer and, further, is rich in heat storage property which allows utilization of electric power at cheap time zone, and moreover is applicable enough also to slope lands. <P>SOLUTION: There is provided the heating device which raises soil temperature of a farm. The heating device is laid in the soil or at a side part, constituted of heating boards or heating walls enclosing an electric heater and filled up with iron sand which is a heat storage body wherein the range of thickness of the heating board or the wall is 30-150 mm, and includes a heating control device of the electric heater which controls temperature of the heating storage body at a prescribed position of the heating object to the set temperature range. <P>COPYRIGHT: (C)2012,JPO&INPIT |
