| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem wherein an air blasting-ventilating system in a plastic greenhouse is necessary for wholesome growing environments for crops, expansion of harvesting, and improvement in quality, and provides the minimum necessary conditions for efficient and simple cultivation of the crops, and, in particular, expansion of an air blasting region for the crops, security of efficient air blasting, a smaller air blasting flow rate, a lower capacity of a ventilating fan, and achievement of resource saving, reduction in running cost, expansion of the yield of the crops, and improvement in operability are expected in the air blasting in the plastic greenhouse. SOLUTION: A chamber box includes: the ventilating fan installed in the plastic greenhouse; a shielding sheet for covering the ceiling surface in the plastic greenhouse; and air-permeable sheet composed of a base sheet, and inner sheet. Air in the plastic greenhouse is sucked through the base sheet to produce mixed air with the outside air sucked by the ventilating fan, and gentle and prescribed air blasting is carried out through the inner sheet in the plastic greenhouse. COPYRIGHT: (C)2010,JPO&INPIT |
