By injecting a chemical fluid and a carrier fluid directly at each nozzle, and by then mixing the fluids at each nozzle to produce a mixed fluid, an improved spray system may be provided which does not contaminate the tank or distribution system with chemical fluid and which allows improved spraying with minimal delay. Accordingly, a system is provided on a field sprayer for independently controlling the flow rate of concentrated chemical fluid to individual spray nozzles using a high pressure chemical distribution rail or loop routed to each nozzle and solenoid injection valves to control the flow of chemical fluid to each nozzle independently.

A system (10) for providing a stream of water that includes a surfactant, comprising a source (14) of water, means (32) to cause water to flow along a water supply duct (34), and a venturi injector (36) within the water supply duct. The venturi injector (36) communicates with an inlet duct (77) to supply surfactant; and the system comprises a surfactant supply duct (80, 83) that communicates between the inlet duct (77) and a surfactant container (18), the surfactant supply duct comprising a first portion that incorporates an on/off valve (38) and a second portion (83) that incorporates a check valve (84) to control flow. A plurality of surfactant containers (18) may be connected to the inlet duct (77) in this way; and each surfactant container 18 may be mounted within an open-topped chamber (68) to which hot water may be provided to heat the contents of the surfactant container (18).

A method for detecting at least one spray liquid data set of a spray liquid applied to an agricultural area using at least one spray nozzle unit of a spraying device. The method includes receiving a property signal, including a piece of property information of the spray liquid detected using a sensor unit of the spraying device in a through-flow area of the spray nozzle unit during an application operation of the spray liquid; receiving a position signal, including a piece of position information of the spray liquid, using a position unit, the position information representing a geographic position of the spray liquid during the application operation of the spray liquid; and storing the property information and/or a piece of spray liquid information of the applied spray liquid ascertained using the property information, together with the associated position information, using an information unit, for detecting the spray liquid data set.

The invention relates to a discharge unit (10) for discharging a final liquid having a defined final mixing ratio, in particular for agricultural purposes, having a first pre-mixing unit (12), which is designed to mix a first liquid with a first carrier liquid, in particular water, to form a first pre-diluted liquid having a first defined pre-mixing ratio, a second pre-mixing unit (14), which is designed to mix a second liquid with a second carrier liquid, in particular water, to form a second pre-diluted liquid having a second defined pre-mixing ratio, and a final mixing unit (20), which is designed to mix the first pre-diluted liquid with the second pre-diluted liquid to form the final liquid to be discharged having a defined final mixing ratio.

An active substance supply system for an agricultural sprayer has a main liquid circuit which includes a reservoir for a main liquid and permits circulation of the main liquid, where the main liquid circuit includes one or more distribution sections which are each configured to distribute to several dispensing elements a spray liquid to be dispensed, and a feed system which is connected to the main liquid circuit and in which the main liquid is mixed with at least one separately supplied active substance to form a liquid active substance mixture, where the active substance supply system is configured to introduce the active substance mixture into the one or more distribution sections at several places.

A system and method that automatically monitors product use, such as the type and amount of agricultural and/or horticultural product stored in and dispensed from a cartridge over time and/or by geographic location. Monitored data are stored in memory such as a tag on the cartridge and may be transmitted to a server for storage, aggregation, and analysis. The cartridge may be authenticated before being authorized for use for the benefit of a current user in dispensing the product. The cartridge may be refilled after confirmation of authorization codes on the cartridge and refilling equipment tags. The cartridge may be calibrated automatically based on the bulk density or other parameter of the product in the cartridge. Data may be aggregated from a plurality of cartridges automatically. As-applied data from individual cartridges may be used to verify, independent of operator input, treated area coverage and product application rate.

A method for monitoring and/or adjusting an active agent concentration in a spray liquid to be deployed via a spray device for agricultural purposes, an active agent and a carrier liquid being fed to a mixing unit of the spray device in order to blend the spray liquid. The method includes: receiving a first property signal including a piece of property information of the blended spray liquid detected using a first sensor unit, to ascertain an actual value of the property information of the spray liquid; receiving a second property signal including the piece of property information of the supplied carrier liquid detected using a second sensor unit of the spray device to ascertain a base value of the property information of the carrier liquid; and outputting an information signal to a display unit and/or a control signal to a delivery unit of the spray device.

The inventive subject matter provides a method for the incorporation of colored photoluminescent materials to be sprayed on to plants and soils. The incorporation of colored photoluminescent materials assists the spray operator through the use of black lights allowing for more precise low light or nighttime spray and seeding operations. More specifically, this invention relates to a colored photoluminescent adjuvant to be applied to targeted crops, plants and seeds to assist in the low light or nighttime application of bioactive agents, such as chemicals and pesticides. The colored photoluminescent adjuvant can be applied as a solution or a foam.

An insulated electrostatically-assisted insulated spraying extender (10) is described, which is installed on the spraying bar (100) of a spraying device and positioned adjacent to a hydraulic nozzle (20) that atomizes the spray solution, said extender (10) being equipped with an insulated internal shaft (12) for the passage of the power supply cable (30) and the placement of an encapsulated electric device (13) that feeds the induction electrode (151) surrounding the opening (21) of the hydraulic nozzle (20), causing the dielectric rupture of atomized drops, eliminating or decreasing the wetting of the induction electrode (151) and of the power supply cable (30), as well as of other electric parts that affect the efficiency and the full operation of the spraying nozzle, while hindering leakage of the electric current through cable (30) by contacting any section of the machine structure.

A spraying device for deploying liquids for agricultural purposes. The spraying device includes at least one spray nozzle for spraying the liquid and at least one mixing device, which includes at least one mixing chamber, at least one first inflow for a carrier liquid, at least two second inflows for different active agent liquids, and at least one outflow connected to the spray nozzle, connecting to the mixing chamber. It is provided that an actuatable valve is associated with each of the inflows. A device is also provided which actuates the valves during intended use in such a way that a constant volume flow results in the outflow regardless of the actuation of the valves/switching of the inflows.