Method for hydroponic growing of lettuce
US4075785A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 8, 1975 |
| Grant date | Feb 28, 1978 |
| Priority date | — |
| Expiry date | Jan 8, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P60/21
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Various commercially valuable plants are grown by implanting a seed or cutting within a shaped porous root-permeable support body. The plant is periodically fed by applying a hydroponic nutrient solution to the plant roots growing through and depending from the shaped support body and the foliage of the plant is periodically exposed to actinic radiation. Root feeding and actinic radiation are continued until the plant reaches commercial maturity. In the case of those plants having valuable foliage, such as leafy vegetables, ornamentals, etc., the entire plant is shipped, stored and displayed for sale while the plant is still alive and growing in the moistened shaped support body which is enclosed in a vapor-barrier integument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.