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.

An irrigation column for a drip irrigation system has a fluid conducting line for receiving fluid from a fluid source upstream. The irrigation column further includes a plurality of drip line segments extending alongside the fluid conducting line, a plurality of zone valves located along the fluid conducting line, and a plurality of control tubes extending alongside the fluid conducting line. And each control tube is in fluid communication with a respective one of the zone valves for actuating the zone valve.

Embodiments of the present invention provide an apparatus to regulate flow of an irrigation fluid through a drip irrigation device. The apparatus includes a fluid supply conduit, a rigid insert mounted coaxially within the fluid supply conduit, and at least one elastomeric ring. The rigid insert receives the fluid from a fluid supply at an inlet port and guides the fluid from the inlet port toward an outlet port. The at least one elastomeric ring is stretched over a portion of the rigid insert having a plurality of inflow gates inbuilt circumferentially into the rigid insert, where an elastomeric ring creates an inward pressure on each inflow gate that is lesser than an input pressure of the fluid. As a result, the flow of the liquid through a plurality of outlet perforations is regulated.

Embodiments of the present invention provide an apparatus to regulate flow of an irrigation fluid through a drip irrigation device. The apparatus includes a fluid supply conduit, a rigid insert mounted coaxially within the fluid supply conduit, and at least one elastomeric ring. The rigid insert receives the fluid from a fluid supply at an inlet port and guides the fluid from the inlet port toward an outlet port. The at least one elastomeric ring is stretched over a portion of the rigid insert having a plurality of inflow gates inbuilt circumferentially into the rigid insert, where an elastomeric ring creates an inward pressure on each inflow gate that is lesser than an input pressure of the fluid. As a result, the flow of the liquid through a plurality of outlet perforations is regulated.

A turf management system includes an irrigation system for providing water to the turf at a turf site, and an irrigation evaluation system for evaluating the performance of the irrigation system. The irrigation evaluation system segments the turf site into irrigation management units, where each of the irrigation management units includes at least one sprinkler head. Qualities of the turf are measured to generate collected data points. The data points are used by the irrigation evaluation system to compute a value for the turf in each of the irrigation management units. The values can then be used to identify irrigation management units having common characteristics. The values can be used to define irrigation management zones for controlling the irrigation system.

A turf management system includes an irrigation system for providing water to the turf at a turf site, and an irrigation evaluation system for evaluating the performance of the irrigation system. The irrigation evaluation system segments the turf site into irrigation management units, where each of the irrigation management units includes at least one sprinkler head. Qualities of the turf are measured to generate collected data points. The data points are used by the irrigation evaluation system to compute a value for the turf in each of the irrigation management units. The values can then be used to identify irrigation management units having common characteristics. The values can be used to define irrigation management zones for controlling the irrigation system.

A supply tube assembly for measuring a liquid agricultural product application rate. An upstream portion of a supply tube has an upstream portion outlet end. A downstream portion has a downstream portion inlet end. The sensor body assembly includes a sensor body, a first sensing plate, and a second sensing plate. The sensor body has a sensor inlet end positioned to receive an inlet flow of the liquid agricultural product from the upstream portion and a sensor outlet end positioned to receive an outlet flow of the liquid agricultural product. The sensor body is an enclosure having a cross sectional area larger than the cross sectional area of the upstream portion of the supply tube and the downstream portion of the supply tube. Electronic components are configured to measure the liquid agricultural product application rate between the first sensing plate and the second sensing plate.

A drip irrigation apparatus and system. The drip irrigation apparatus includes a flow channel body and an elastic body. The elastic body is mounted on the outer circumference of the flow channel body and fitted in a spontaneous state to the outer circumference of the flow channel body. The flow channel body includes an energy dissipation body. The first drainage channel is formed in the energy dissipation body, the first drainage channel is connected to both ends of the energy dissipation body. The first drainage channel is connected at both ends of the first drainage channel to the inner wall of the elastic body forming a radial drainage channel.

A supply tube assembly for measuring a liquid agricultural product application rate. An upstream portion of a supply tube has an upstream portion outlet end. A downstream portion has a downstream portion inlet end. The sensor body assembly includes a sensor body, a first sensing plate, and a second sensing plate. The sensor body has a sensor inlet end positioned to receive an inlet flow of the liquid agricultural product from the upstream portion and a sensor outlet end positioned to receive an outlet flow of the liquid agricultural product. The sensor body is an enclosure having a cross sectional area larger than the cross sectional area of the upstream portion of the supply tube and the downstream portion of the supply tube. Electronic components are configured to measure the liquid agricultural product application rate between the first sensing plate and the second sensing plate.

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.