Hydroponic method using a porous foam plate, and a container used therewith

申请公布号：US4034506(A)

申请号：US19760681972

申请日期：1976.04.30

申请公布日期：1977.07.12

申请人：

MITSUBISHI PETROCHEMICAL COMPANY LIMITED

发明人：KASAHARA, TOMIO;MAKITA, TOMOTARO

分类号：A01G31/00;(IPC1-7):A01G31/00

主分类号：A01G31/00

摘要：A hydroponic container comprising a casing and a porous foam plate disposed on the surface of water contained in the casing, the porous foam plate consisting of an aggregate of foamed resin beads bonded to one another with continuous open spaces among adjacent beads, and a hydroponic method which comprises disposing a porous foam plate on the surface of water containing nutrients, the porous foam plate consisting of an aggregate of foamed resin beads bonded to one another with water permeable spaces among adjacent beads, and cultivating a plant on the porous foam plate.

FILTRATION METHOD AND APPARATUS

CASSETTA D IMBALLAGGIO IMPILABILE SPECIALMENTE PER ARTICOLI A CONSERVAZIONE TERMICA

TAPPO PER CONTENITORI DI PRODOTTI PASTOSI IN PARTICOLARE DI PRODOTTI ALIMENTARI COSMETICI E SIMILI

DISPOSITIVO ATTO A RIDURRE IL CONSUMI DI CARBURANTE NEI MOTORI A SCOPPIO CICLO OTTOSIA A BENZINA GAS G.P.L. O METANO

TELAIO DI SOSTEGNO DELLA NAVICELLA DI UNA CARROZZINA PER BAMBINI, PIEGHEVOLE PER UN COMODO TRASPORTO, PRESENTANTE CARATTERISTICI LONGHERONI LATERALI DI RAFFORZAMENTO DELLA STRUTTURA, COSTITUITI OGNUNO DA DUE TRONCHI SCORREVOLI A CANNOCCHIALE.

GENERATORE DI RITMO PER STRUMENTI MUSICALI ELETTRONICI.

METHOD OF MAKING REINFORCED ENDLESS GEARED BELT WITH CLOTH COVER

PREPARATION OF IRON ELECTRODES

MOBILE RADIO COMMUNICATION SYSTEM

OPERATIONAL PROCESSOR

TREATMENT OF WASTE SLAG

MANUFACTURE FOR SEMICONDUCTOR DEVICE

METHOD OF LAYING CABLE INTO TUBE BY UTILIZING BUOYANCY

STRUCTURE JOINT

FOREIGN MATTER INSPECTOR

METAL SURFACE TREATMENT

INTERMEDIATE LAYER FORMATION METHOD OF MULTILAYER PRINTED BOARD

HANGING DEVICE FOR LARGE SIZE* AUTOMATICALLY ADJUSTABLE ROLLER BEARING

EXHAUST DEVICE FOR AUTOBICYCLE

MULTIPLE READING BUS CYCLE OPERATION SYSTEM