Nutrient Solution Patents (Class 47/62N)
  • Patent number: 6105309
    Abstract: The plant cultivation apparatus and plant cultivation method hasten the growth of a plant root without root injury even if the basic root has been sufficiently bathed in cultivation water solution, reduce a cost for competing with alleyway vegetables by reducing electric power consumption as much as possible, which has been the greatest factor for cultivation cost, by utilizing fluorescent light as efficiently as possible for cultivating the plant while oxygen necessary for growing the plant root can be supplied sufficiently and bacteria cannot be produced, and prevent heat injury such as a chip-burn by minimizing heat energy generated by the light source (fluorescent light).
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: August 22, 2000
    Assignee: E.T. Harvest Co., Ltd.
    Inventor: Eifu Takayanagi
  • Patent number: 6065245
    Abstract: A dietary inclusion model for an integrated aquaculture-hydroponics system is derived from the concept of mass conservation. The model enables the maintenance of near-equilibrium concentrations of Ca, K, Mg, N, and P, suitable concentrations of Mn and Cu, and acceptable accumulation rates of Na and Zn, in representative integrated aquaculture-hydroponics systems, by modifying the mineral concentrations of the fish diets according to the model. The model is readily applicable to virtually any freshwater recirculating fish culture system operating at a recycle ratio sufficiently high to maintain appropriate nitrogen concentrations and having an environment suitable for hydroponic plant culture.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: May 23, 2000
    Inventor: Damon E. Seawright
  • Patent number: 6055771
    Abstract: A system for germinating livestock feed grains and growing sprouts therefrom using a plant nutritive effluent from a manure treatment process includes a germination tray conveyor having an endless sequence of trays thereon, a grain deposit station at one end of the conveyor, a sprout offload station at an opposite end of the conveyor, and a plurality of effluent spray stations spaced between the grain deposit station and the offload station. Grain is deposited in a tray at the deposit station, solenoid spray valves are opened at timed intervals, and the trays are advanced to the next station in a timed sequence to allow the grains to germinate and the sprouts to mature by the time each tray reaches the offload station.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: May 2, 2000
    Assignee: Dorian Industries, Inc.
    Inventor: Dorothy O'Haver Warnacut
  • Patent number: 6055768
    Abstract: The present invention relates to a method and apparatus to energize a fluid. In one embodiment, the apparatus comprises a housing defining a bore therethrough within which is disposed an antenna so as to define an annulus between the housing and the antenna, the antenna being electrically coupled to both the housing and an electrical power source so as to create an electrical field through which water or other fluids may be passed.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: May 2, 2000
    Inventor: Joe Everett Burkett
  • Patent number: 6021602
    Abstract: A modular structure for aeroponic cultivations comprising a plurality of prefabricated side panels which are meant to receive plants being cultivated and a plurality of prefabricated flat bases to which the side panels are joined by means of respective interlock couplings in order to form a structure which is substantially shaped like an inverted V and in which the side panels are mutually connected along an upper ridge line by respective ridgecaps; a pumping unit and a spraying apparatus are also provided in order to feed an atomized nutrient solution inside the structure.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: February 8, 2000
    Assignee: Consulagri S.R.L.
    Inventor: Marco Orsi
  • Patent number: 5992090
    Abstract: A process of making a vegetative and tuber growth regulator. The vegetative and tuber growth regulator is made by growing potato plants in a recirculating hydroponic system for a sufficient time to produce the growth regulator. Also, the use of the vegetative and growth regulator on solanaceous plants, tuber forming plants and ornamental seedlings by contacting the roots or shoots of the plant with a sufficient amount of the growth regulator to regulate the growth of the plant and one more of canopy size, plant height, stem length, internode number and presence of tubers in fresh mass. Finally, a method for regulating the growth of potato plants using a recirculating hydroponic system is described.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: November 30, 1999
    Assignee: Dynamac International Inc.
    Inventors: Gary W. Stutte, Neil C. Yorio