| 摘要 |
The invention provides a method of growing plants comprising supplying water to the plants so that the plant roots contact a body of water and drawing water through a suction device provided in contact with the body of water an d into a first conduit (4) connected at one end to the suction device and through the first conduit (4) into a second conduit (5) connected to the oth er end of the first conduit (4), and the second conduit (5) is at least partial ly filled with air and the water is released from the first conduit (4) into ai r space in the second conduit (5), characterized in that the suction device is formed from a foam formed from a polymer selected from phenol urea formaldehyde; urea melamine formaldehyde polymer; polyurethane; furanic polymers; and homopolymers, copolymers and terpolymers of ethylene, propylen e and butylene, provided that methods in which the plants are grown in a pheno l urea formaldehyde foam growth substrate and the suction device is formed fro m phenol urea formaldehyde foam are excluded. The invention also provides an apparatus suitable for carrying out the method. |
