GEOLOGICAL CIRCULATION-TYPE WATER CURTAIN CULTIVATION SYSTEM ALLOWING RAINWATER ARTIFICIAL CULTIVATION (PROTECTED CULTIVATION SYSTEM WITH GEOLOGICAL CIRCULATION OF GROUND WATER AND RAINFALL ARTIFICIAL RECHARGE)

摘要

PPROBLEM TO BE SOLVED: To provide a geological circulation-type water curtain cultivation system allowing rainwater artificial cultivation, for greatly saving a heating expense of facility cultivation in a winter season, using geothermal heat existing in the underground. PSOLUTION: This cultivation system includes a greenhouse 10 made of an inner greenhouse 11 arranged in a standing condition so as to form an inner space, and an outer greenhouse 12 surrounding the inner greenhouse 11 and set separately in the outside of the inner greenhouse 11 so as to have a water curtain space 13, a water curtain forming pipe 20 set in the greenhouse 10 on the upper part of the water curtain space 13 and forming a water curtain on the outer surface of the inner greenhouse 11 by pouring supplied underground water, a supply pump 33 supplying underground water, a collection pipe 42 collecting underground water, a reduction collection tank 43 dust collecting from underground water, an underground water reduction pipe 44 including a reduction pump 45 supplying underground water dust collected in the reduction collection tank 43 to a reduction underground water hole 46, a rainwater collecting passage 51 formed in the outside lower part of the outer greenhouse 12, and a rainwater supply pipe 52 installed by connecting the rainwater collecting passage 51 with the reduction collection tank 43. PCOPYRIGHT: (C)2011,JPO&INPIT