A fertilizer application system for a liquid fertilizer concentrate includes a container containing a first fluid. A siphon is disposed on the container and includes two inlets and an outlet. A flow control valve is configured to selectively control an amount of first fluid flowing through the siphon based on ambient temperature of an environment outside the container. A siphon tube includes a siphon tube first portion in fluid communication with the first fluid, and a siphon tube second portion fluidly coupled to an inlet of the siphon. The first fluid includes a liquid fertilizer concentrate comprising a nitrogen containing source, a phosphorous containing source, a sulfur containing source, a potassium containing source, an iron containing source, and water.

An agricultural potassium-fertigation method for emitter-irrigation potassium fertigation feeds a potassium-nutrient feedstock comprised of potassium formate and water to an active emitter-irrigation system continuously, or substantially continuously, at low levels, during the entire time, or substantially the entire time, that irrigation water is sufficiently flowing through the irrigation system during a prolonged term.

The present invention relates to a method for producing water having a stable high nitrate content, an organic fertilizer comprising the water having a stable high nitrate content thus produced, and use of the water having a stable high nitrate content in a method for the organic cultivating of a plant in a substrate. The present invention further relates to a continuous flow system for supplying plants with the water having a stable high nitrate content.

A hose-end spreader device includes a hopper configured to contain an amount of granular product, the hopper comprising a hopper inlet and a hopper outlet in communication with the hopper inlet. The device further includes a first chamber in communication with the hopper outlet, the first chamber comprising a first opening through which the granular product exits the device, and a first impeller disposed in the first chamber. Also included are a housing disposed below the first chamber, the housing comprising a fluid inlet, a second chamber in communication with the fluid inlet, and a second opening in communication with the second chamber through which a fluid exits the device, and a second impeller disposed in the second chamber. The second impeller is coupled to the first impeller.

The present irrigation pest control system relates generally to the automated dispersal of pest control agents and other agricultural agents to lawns and agricultural areas. Users may program a desired schedule for the dispersal of various chemical agents at certain time periods and in specified volumes by automating the dispersal of chemical agents into the irrigation system. This automated system can function through the programming of a multi-port pinch chemigation valve that regulates the dispersal of about twelve (12) different chemical agents housed in a plurality of smart port cartridges in fluid communication with the multi-port pinch chemigation valve. The multi-port pinch chemigation valve eliminates redundancies by integrating the dispersal of pest control and other chemical agents with the normal irrigation process.

A chemigation system can be easily integrated into existing irrigation systems. The chemigation system can include a primary controller that can be installed near the irrigation controller of the irrigation system. The chemigation system can also include a secondary controller that can be installed near a valve assembly of the irrigation system. The primary controller and secondary controller can leverage the existing irrigation wire of the irrigation system to intercommunicate for purposes of controlling the injection of chemicals into the irrigation water and controlling an actuator for a valve of the valve assembly.

Provided is a method of delivering water to a root system of a crop, the method including causing the crop to be adjacent to, or in a region of, soil containing hydrogel, and delivering air to the hydrogel.

A fertigation apparatus that can be installed on a water supply line of an irrigation system. The fertigation apparatus includes a body that has an open top, an inlet near the open top, and an outlet near a bottom of the body, a cap configured to close the open top, and a mesh basket encased within the body, the mesh basket can receive one or more tablets of fertilizer and pest or weed control. A diverter can selectively switch the water between the direct water supply line or through the apparatus.

Systems for producing nitrogen compounds that are configured for integration with an irrigation device. The systems generally include an absorber receiving a reactor-outlet stream comprising one or more oxidized nitrogen species, the absorber containing water to produce a nitrogen-compound stream comprising nitrates, nitrites, nitric acid, salts thereof, or a mixture thereof; and a system-outlet port configured to be fluidically coupled to an irrigation line, the system-outlet port in fluid communication with the absorber to receive at least a portion of the nitrogen-compound stream and provide the nitrogen-compound stream to the irrigation line.

Electric power supply kit (10) for an irrigation system (100) for land, said irrigation system (100) comprising at least one conduit (110, 111) adapted for the passage of an irrigation fluid and at least one electrical device (120) comprising at least one rechargeable power supply battery (130), said electric power supply kit (10) comprising at least one hydroelectric turbine (20) in fluid communication with said irrigation fluid adapted to generate an alternating electric current voltage as said irrigation fluid passes into said at least one conduit (110, 111), at least one voltage regulator (30) adapted to be powered with said alternating electric current, adapted to stabilize said alternating electric current voltage in a direct electric current voltage, and adapted to supply said at least one power supply battery (130) of said at least one electrical device (120) with said direct electric current voltage.