METHOD FOR REARING PLANT IN COLD DISTRICT BY PLANTING BOX

摘要

PURPOSE: To prevent freeze of water content and injury of a plant by constituting a plant rearing part above a middle bottom sheet above a space part of a water tank part in the lower part and providing a specific heat insulating layer on the inner circumferential face of the outer block part made of FRP and inner bottom of the water tank part. ;CONSTITUTION: A water content sucking mechanism SM is linked to a middle bottom sheet part 5 above a space part 7 of a water tank part WT in the lower part and a plant rearing part GP using a flexible open cell-like foam sheet as a water content retaining body is arranged above the water content sucking mechanism SM. Cold insulating and heat retaining layers 2, 3 and 4 such as closed cell flexible or rigid foam sheet having water resistance and reinforcing properties are arranged in the inner circumferential face of the outer block part 1 made of FRP and the inner bottom face of the water tank part.;COPYRIGHT: (C)1994,JPO&Japio