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 system and method for determining specific prescriptions for targeted areas/plants within given irrigation areas. According to preferred embodiments, the system may use imaging data in combination with other sensors and analysis modules to identify selected pests and diseases affecting given crops. Preferably, the system may use machine learning/AI modules to analyze the data and to provide targeted prescriptions for targeted groups of identified crops based on identified conditions of infestation and/or disease within the identified crops.

Soil moisture monitoring systems and methods for measuring mutual inductance of area of influence using radio frequency stimulus are disclosed herein. An example device includes a master element stacked vertically on top of one or more slave elements. The master element and slave elements can communicate through a 1-wire bus configuration. The master element can determine the presence and location of each of the one or more slave elements using an auto-discovery process. The master element can issue commands to the one or more slave elements to obtain moisture readings and/or temperature readings.

According to one embodiment, a method to increase drought tolerance for grass is disclosed. The method includes estimating by a server a root depth of grass watered by an irrigation system based on one or more of historical watering data of the grass, grass type characteristics, or soil characteristics of soil in which the grass is growing; determining by the server a target water depletion threshold of the grass based on the root depth; generating by the server an irrigation schedule based on the target water depletion threshold and weather information; and transmitting by the server the irrigation schedule to an irrigation controller to selectively activate the irrigation system based on the irrigation schedule.

A watering schedule control system (200) includes a power source (106), a power status sensor (108) to generate a signal indicative of remaining power with the power source (106), and a controller (204) communicably coupled to the power source (106), and the power status sensor (108). The controller (204) has access to a watering schedule. The controller (204) is configured to receive the signal from the power status sensor (108) and modify the watering schedule based on the received signal.

A system of one or more computers can be configured to perform particular operations or actions by virtue of having software, firmware, hardware, or a combination of them installed on the system that in operation causes or cause the system to perform the actions. One general aspect includes an intelligent irrigation system including one or more of a sprinkler and one or more processors configured to: obtain imagery data regarding a plant; determine a current life cycle stage of the plant based on the imagery data, determine a plant crop coefficient for the plant based on the current life cycle stage of the plant, determine irrigation water output for the plant based on the plant crop coefficient, potential evapotranspiration calculated using solar radiation, temperature, wind speed and/or any other factors, and control the sprinkler to irrigate the plant based on the irrigation water output determined for the plant.

Devices are provided for indicating a moisture content of a substance such as soil. In an example, a device for indicating a moisture content of soil includes a stem configured to be inserted into the soil and an indicator coupled to the stem and configured to visually indicate the moisture content of the soil, the stem and the indicator each comprised of an absorbent material and at least the indicator including hydrochromic ink on the absorbent material.

Systems and methods are provided for use in applying treatments to crops in fields. One example computer-implemented method includes calculating a growth stage of a crop in a field on a defined date based on planting data and weather data for the field and/or crop, and then, in response to the growth stage being within a spray window for the crop, defining a plurality of synthetic sprays within the spray window for the field. The method then includes, for each one of the synthetic sprays, calculating at least one disease risk for the crop in the field and calculating a response to the synthetic spray. The method then further includes compiling a report including a selected one or more of the responses, based on yield differences of the responses, as a recommendation for applying the treatment to the crop consistent with the synthetic spray associated with the selected one or more of the responses.

A surge irrigation system with one or more valve location units configured for location at a flood irrigation valve assembly. Each valve location unit has an elongate linkage with a rod configured to rotatably open and close a flood irrigation valve assembly with a powered actuator. A control unit is connected to the powered actuator and configured to wirelessly receive instructions to operate the powered actuator. Various embodiments also implement a base station to relay information and/or instructions between valve location units and a user. A user may control the system through, for example, a mobile device interface. Embodiments of the invention may also include moisture sensors configured to provide feedback to the system. A method of using the surge irrigation system is also disclosed.

The technology described herein provides a dual machine irrigation system. The first machine is primarily an irrigation machine and the second machine is primarily a sensor machine, though it may also distribute liquids. The irrigation machine includes an irrigation span and can include multiple irrigation spans. The sensor machine includes a sensor span and can include multiple sensor spans. The sensor span gathers data that is used to optimize the liquid deployment from the irrigation span. In an aspect, both the irrigation span and the sensor span follow the same path of travel through a field, but at different times. The sensor span is separate from the irrigation span and includes a plurality of environmental sensors that gather data on the field, the field environment, and any crops that may be in the field. The ability of the sensor span to provide real-time data allows for optimization of liquid deployments.