In some embodiments, apparatuses and methods are provided herein useful to providing power and data to an irrigation device. In some embodiments, encoder for an irrigation control unit that provides power and data to an irrigation device over a multi-wire path comprises: an AC to DC converter to convert an input AC signal into a DC voltage; an AC signal generator to generate an output AC signal modulated with data; a control circuit to provide a modulation control signal to the AC signal generator to control generation and modulation of the output AC signal, the data modulated on the output AC signal comprising commands in accordance with irrigation programming; and a multi-wire interface coupled to the AC signal generator to electrically couple to a multi-wire path extending into a landscape and to which irrigation devices may be connected.

In some embodiments, a system for controlling irrigation comprises an irrigation control unit comprising: an input configured to receive a user entered number of watering passes for a rotary sprinkler configured to repetitively rotate about an arc and irrigate an area of an irrigation site, wherein each rotation about the arc comprises a watering pass; a memory to store the number of watering passes and arc rotation data for the rotary sprinkler corresponding to a time duration for the rotary sprinkler to make the watering pass about the arc; and a control circuit configured to: receive the number of watering passes; receive the arc rotation data; determine a run time that will result in irrigation by the rotary sprinkler about the arc for the user entered number of passes; and store the run time.

Aeration and drying of subsurface soils with a subsurface irrigation system. An air inlet and bypass pressure regulator allow pressurized gas to be introduced into a zone of the system to aerate and dry a field. Pressurized gas or aerosolized agrochemicals are delivered through emitters integrated into the driplines within the system. Emitters integrated into the driplines allow aeration and drying of subsurface soils during times of season when high amounts of precipitation or localized flooding interfere with the systems use for irrigation.

An irrigation system comprises an irrigation controller that receives user input and provides a power signal and command and message data to an encoder. The encoder encodes the command and message data onto the power signal to provide a data encoded power waveform that is sent over a two-wire path. The irrigation system further comprises one or more decoders in communication with the two-wire path to receive the data encoded power waveform and one or more irrigation valves in communication with the one or more decoders. The data encoded power waveform provides power to the decoders and the decoders decode the command and message data from the data encoded power waveform to control the irrigation valves according to the user input.

A system with sensor equipment including one or more sensors and watering equipment disposed on a parcel of land and configured to selectively apply water to the parcel, and a gateway configured to provide for communication with the sensor equipment and the watering equipment. The watering equipment comprises a watering pump, wherein the watering pump is operably coupled to a water source and a water line to alternately couple the water source to and isolate the water source from the water line. The watering pump further includes a pump sensor assembly configured to direct the watering pump based on detected environmental and operational parameters.

A system may include sensor equipment including one or more sensors disposed on a parcel of land, watering equipment disposed on the parcel and configured to selectively apply water to the parcel, and a gateway configured to provide for communication with the sensor equipment and the watering equipment. The gateway may interface between a first network and a second network. The first network may include at least the watering equipment and the sensor equipment. An operator may be enabled to wirelessly communicate with the gateway via the second network. At least one component of the watering equipment or the sensor equipment may be an adaptive component.

A user terminal may be configured to communicate with a gateway. The gateway may be configured to communicate with sensor equipment including one or more sensors and watering equipment via a first network. The gateway may also be configured to communicate with the user terminal via a second network. The user terminal may include processing circuitry that is configured to provide a remote interface for communication with the sensor equipment and the watering equipment via the gateway.

A watertight electrical compartment for use in an irrigation device can include a compartment body having a chamber and a sealing section configured to mate with one or more sealing rings. A sealing cap can mate with the sealing section and/or the sealing rings to seal the chamber. A cap retainer can be advanced over at least a portion of the sealing cap. One of the compartment body and cap retainer can have internal threads to be screwed onto external threads of the other one of the compartment body and cap retainer. The cap retainer can also have a stopping feature to keep the sealing cap in its sealed position. The watertight electrical compartment can be used in a wireless flow sensor assembly, a battery operated irrigation controller, and/or a battery-operated central controller device, to provide irrigation control, and/or sensor information, without the need for AC power.

A method of automatically managing a center pivot irrigation machine comprising steps of: (a) providing at least one center pivot irrigation machine and positioning said center pivot irrigation machine such that said center pivot irrigation machine is movable within an irrigated plot around a center thereof; (b) providing a ground penetration radar; (c) mounting said ground penetration radar on said center pivot irrigation machine; (d) moving said center pivot irrigation machine about said center of said irrigated plot; (e) scanning said irrigated by said ground penetration radar at frequencies ranging between 200-1200 MHz; (f) calculating a distribution of soil moisture over a depth from a soil surface; and (g) creating an irrigation plan according to said distribution.

An adaptive hydraulic control system controls irrigation system zones using predicted valve behavior, measured pressure, recovery time, and measured flow. A pressure sensor can measure a pressure in a water line and a flow meter can measure a flow rate in the water line. The adaptive hydraulic control system monitors the pressure and the flow rate, and determines when the pressure and the flow rate are above and below target operational thresholds. When the pressure is determined to be below a minimum target threshold or the flow rate is determined to be above a maximum target threshold, the adaptive hydraulic control system identifies one or more valves in an opened position of the plurality of valves that when closed would cause the pressure and the flow rate to return within the target operational thresholds. The adaptive hydraulic control system provides instructions to change a position of the one or more identified valves.