The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 1980
Filed:
Sep. 29, 1978
Applicant:
Inventor:
Shigeo Nozawa, Hyogo, JP;
Assignee:
Kyowa Kagakukogyo Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01G / ;
U.S. Cl.
CPC ...
47 59 ;
Abstract
A method of hydroponic culture in which plants are cultured while a nutrient solution is continuously circulated within a culture tank. The method comprises determining a scheduled growth curve for a plant to be cultured, programming the flow rate increase and liquid level drop of the nutrient solution by approximate correspondence with the scheduled growth curve, and supplying the nutrient solution under control in accordance with the program.