Abstract: A variable rate air metering system is provided. The system includes seed meter cartridges, each having a housing, a meter wheel, and a variable speed electric motor operatively connected to the seed meter cartridge. The seed meter cartridges provide flowable material to distribution manifolds, which are configured to distribute flowable material to multiple row outputs for deposition into a field. A control system is configured to control operation of the distribution manifolds for enabling/disabling dispersement of flowable material to row units. The control system is also configured to adjust the dispersement rate of flowable material by the seed meter cartridges in association with the opening/disabling the dispersement of flowable material to row outputs.

Abstract: An agricultural implement for distributing fertilizer to a plurality of rows includes a fertilizer container, a plurality of fertilizer metering units, and a plurality of motors. The fertilizer containers are used for storing the fertilizer prior to the fertilizer being distributed to the soil. The plurality of fertilizer metering units each include a housing and a metering device positioned in the housing. The housing has an inlet configured to receive fertilizer from the fertilizer container and an outlet. The plurality of motors are each drivingly coupled to and configured to rotate at least one metering device to distribute fertilizer to a row of the plurality of rows.

Abstract: A metering device for dispensing agricultural product from a bin. The metering device comprises a housing enclosing an interior space, and a metering assembly removably received within the interior space of the housing. The metering assembly is configured to convey agricultural product through the metering device. The metering assembly comprises a rotatable sub-shaft, a first metering wheel positioned on the sub-shaft and configured to rotate with the sub-shaft, a second metering wheel positioned on the sub-shaft and configured to rotate with the sub-shaft, and a dividing element positioned on the sub-shaft between the first metering wheel and the second metering wheel.

Abstract: A seed supply system includes a singulating meter with a seed reservoir pressurized to a meter pressure that is in a desired pressure range. A seed supply air stream carries seeds dispensed from a nurse tank to an air release assembly located above the singulating meter. As seeds are metered from the seed reservoir at a rate less than the rate seeds are dispensed from the nurse tank seeds accumulate in the air release assembly. The pressure of the seed supply air stream at the top of the seed column fluctuates and a barrier is operative to resist air flow between the air release assembly and the seed reservoir sufficiently to maintain the meter pressure in the desired meter pressure range. The barrier can be provided for example by an airlock or a column of seed in a drop tube between the air release assembly and the seed reservoir.

Abstract: An applicator for applying anhydrous ammonia, NH3, to an agricultural field includes a distribution rail for receiving and out letting a flow of the NH3. The distribution rail has a decreasing inner diameter from an inlet of the distribution rail to distal ends of the distribution rail.

Abstract: A pressure gradient or differential in a product distribution line for conveying granular particulate material, including at least one of seed or fertilizer, in an air flow to an agricultural field consistently decreases as air speed and velocity in the product distribution line decreases until a critical air speed is reached. Below the critical air speed, the particulate material may become susceptible to falling out of the air flow to potentially cause a blockage in the system. Accordingly, pressure sensors arranged in the product distribution line can be used to generate an air flow at an optimum velocity above the critical air speed yet below a maximum air speed associated with inefficient operation. The air flow can be adjusted to maintain the optimum velocity despite changes in at least one of a type of particulate material or a rate at which the particulate material is metered.

Abstract: The present disclosure describes an agricultural product distribution system having first and second product meters configured to meter first and second amounts of agricultural product from a product tank over first and second periods of time, respectively. The system also includes first and second motors coupled to the first and second product meters, respectively, and configured to turn the first and second product meters a first number of turns and a second number of turns, respectively, over the first and second periods of time to meter the first and second amounts of agricultural product. Further, the system includes a controller configured to receive inputs indicative of the first amount of agricultural product, the first number of turns, the second amount of agricultural product, and the second number of turns and to compare the signals to determine first and second calibration rate of the first and second product meters.

Abstract: In one embodiment of a trailing arm assembly, the trailing arm assembly includes a frame bracket attachable to a planter towing frame, a first frame, and a four bar parallel linkage connecting the frame bracket and the first frame with a first pivot and a second pivot on the frame bracket and a first pivot and a second pivot on the first frame. The trailing arm assembly also includes an adjustable biasing member extending from the parallel linkage to the frame bracket. The parallel linkage is connected between the first frame and the frame bracket such that the parallel linkage maintains a parallel orientation of the first frame. The adjustable biasing member is adjustably connected to a portion of the parallel linkage.

Abstract: An agricultural product distribution system includes an inductor box configured to receive agricultural product and conveyed air to combine the conveyed air and the agricultural product. The conveyed air is configured to direct the agricultural product through ports to multiple distribution units. Moreover the inductor box includes a baffle retention channel configured to receive a removable baffle. Furthermore, the removable baffle includes at least one opening configured to control an amount of conveyed air directed through the ports to the multiple distribution units.

Abstract: An agricultural product distribution system includes an inductor box configured to receive agricultural product and conveyed air to combine the conveyed air and the agricultural product. The conveyed air is configured to direct the agricultural product through ports to multiple distribution units. Moreover the inductor box includes a baffle retention channel configured to receive a removable baffle. Furthermore, the removable baffle includes at least one opening configured to control an amount of conveyed air directed through the ports to the multiple distribution units.

Abstract: The devices, systems, and methods herein use air pressure to dispense seed into the ground in a controlled manner. In certain embodiments, a valve is actuated to push a single seed out of a seed chamber. The seed can be conveyed from the metering housing and through a seed delivery apparatus to the furrow at high speed. The seed is rapid conveyed from the seed chamber to the furrow by a precisely controlled air pulse to eliminate variation and enable high planting speeds.

Abstract: Methods for growing plants and seeds may include blending a polyacrylamide polymer with the uppermost portion of the soil, usually top 1 inch of the soil at a rate of around 1 pound polyacrylamide per 100 square feet of soil. The polyacrylamide attaches to the roots of the plant and acts as an extension of the root system facilitating the uptake of water by the plant and increasing the soil permeability around the root system. The method also improves germination of the seeds and facilitates the growth of the resulting plants. The method may be utilized with a variety of plants, sod, and trees.

Abstract: An air distribution apparatus including a manifold body having ports with a delivery conduit connected to each port. A port valve is configured to communicate an interior of the manifold body with the delivery conduit associated with each port. A supply conduit is connected at an output end thereof to the interior of the manifold body and connected at an input end thereof to receive a product air stream with entrained agricultural products. An exhaust orifice is defined in the supply conduit and an exhaust valve configured to control a flow of pressurized air from an interior of the supply conduit through the exhaust orifice. The port valve and exhaust valve are controlled to operate oppositely to each other between their open and closed positions. The port and exhaust valves are also adjustable to intermediate positions between the open and closed positions.

Abstract: A seed treatment system having a central computerized data store, a user interface, and network connections from the data store to a plurality of retail facilities and a plurality of agricultural produce suppliers. Each retail facility having a seed treatment system configured to uniformly treat batches of seeds with any of a variety of precisely measured chemical formulations. The seed treatment apparatus having a treatment applicator coupled to a plurality of dispensing stations. Each dispensing stations having a pump in fluid communication with a container disposed on a scale. The pump and scale of each dispensing station coupled to a system controller. The system controller is coupled to the data store, configured to provide on-demand agricultural seed treatments to the applicator and chemical usage data from each station to the data store. The data store configured to provide centralized remote monitoring inventory control, supply chain monitoring, and container recycling compliance.

Abstract: In one embodiment, a method includes metering agricultural product to a first header of an agricultural implement via a first meter module of a metering subassembly, receiving, at a processor, a first signal indicative of a first amount of agricultural material at the first header, and determining, via the processor, a first time relative to activation of the first meter module when the first amount reaches a target amount of agricultural product based at least in part on the first signal.

Abstract: A pneumatic precision seed drill has a multiplicity of seeding hearts 1 for holding pivoting separating devices 3 exposed to a pressure difference between their inner space 21 and their exterior space 22. A multiplicity of holes 17-20 intended for the accumulation of seeds is arranged in the device 3. The separating device 3 is formed by a pair of separating plates 4, 5 connected to one another at their outer edge 38, 39 that are arranged offset in a tangential direction to one another to produce a spread seed row and are assigned to separate outlets 23, 24 for the discharge of the seed from the seeding heart 1 in the direction of the sowing coulter.

Abstract: An agricultural spreader has a hopper containing a granular product and a boom arm supporting a plurality of product delivery conduits supplying a plurality of row banding assemblies configured to disperse the product. The spreader has a pneumatic supply to propel the granular product through the product delivery conduits to the row banding assemblies. Each of the plurality of row banding assemblies includes a cyclone separator having an inlet connected to the product delivery conduit, a product outlet at a bottom end of the cyclone separator, an air outlet at a top end of the cyclone separator. The row banding assembly has a product placement tube connected to the product outlet, and an air exhaust tube connected to the air outlet. The air exhaust tube extends downward and surrounds the product placement tube.

Abstract: A metering system for a row unit for individual dispensing of grains comprises metering devices having a chamber for carrying grains, whereby a defined pressure level in the chamber is higher than ambient pressure. At least two metering elements establish a border to the chamber, whereby the metering elements are arranged within the housing so that they can be turned and the metering elements consist of cut-outs arranged along a curved path for picking up grains. At least one grain dispensing area is intended, which is defined by the chamber and the metering elements. The grain dispensing area includes a seed inlet element for transporting separated grains to a seed metering pipe to dispense the separated grains into a furrow, whereby a pressure application device is arranged at the seed inlet element or the seed metering pipe, to produce an air stream for the acceleration of the grains.

Abstract: A method of monitoring a mass flow rate of product being applied with an agricultural implement includes the steps of: calibrating a pressure drop across a known distance in an air line at a number of air flow rates; metering a product at a desired application rate into the air line at a selected one of the air flow rates; establishing a pressure drop across the known distance at the selected air flow rate, while the product is being metered at the desired application rate; calculating a value of K1 dependent on the established pressure drop; estimating a mass flow rate of the product being applied, using the mathematical expression: log ?=?(1+?)·log Fr+K1 where ? (mass loading ratio); Fr (Froude number); ?=calibration variable; and K1=constant for a given product being applied at a given mass flow rate.

Abstract: An agricultural product distribution system is presented includes an inductor box configured to receive agricultural product and conveyed air to combine the conveyed air and the agricultural product. The conveyed air is configured to direct the agricultural product through ports to multiple distribution units. Moreover the inductor box includes a baffle retention channel configured to receive a removable baffle. Furthermore, the removable baffle includes at least one opening configured to control an amount of conveyed air directed through the ports to the multiple distribution units.

Abstract: A system includes an inductor assembly of an agricultural implement having an inductor box with a wall configured to separate an interior of the inductor box from an exterior of the inductor box, an inductor segment, and a mounting clip. The wall includes an inner surface in the interior and an outer surface on the exterior. The inductor segment includes a mixing portion and a delivery portion, wherein the mixing portion interfaces with the inner surface and is configured to mix agricultural product and airflow into a mixture. The delivery portion is configured to convey the mixture through the wall. The mounting clip is configured to form a seal between the interior and the exterior of the inductor box, and to interface with the outer surface and the delivery portion in an installed position to couple the inductor segment to the inductor box.

Abstract: A system for planting multiple types of seed and automatically switching between the varieties during planting in a single planting pass of a planting session of row-crop planting of an agricultural field while controlling seed delivery speed to mitigate seed bounce and/or provide desired seed spacing distances. The system may include a bulk storage system, an on-row storage system, and a charging system that selectively delivers seeds of different varieties from the bulk storage system to the on-row storage system and a seed delivery speed control system that regulates seed delivery speed.

Abstract: An agricultural product distribution system includes first and second product meters configured to meter first and second amounts of agricultural product from a product tank over first and second periods of time, respectively. The system also includes first and second motors coupled to the first and second product meters, respectively, and configured to turn the first and second product meters a first number of turns and a second number of turns, respectively, over the first and second periods of time to meter the first and second amounts of agricultural product. Further, the system includes a controller configured to receive inputs indicative of the first amount of agricultural product, the first number of turns, the second amount of agricultural product, and the second number of turns and to compare the signals to determine first and second calibration rate of the first and second product meters.

Abstract: A granular material handling apparatus has a metering assembly comprises a metering module removably mounted in an opening in a hopper. The metering module comprises a meter roller and a front metering member with a metering edge parallel to and at a fixed metering gap distance from the meter roller. A removable flow structure receives granular material flowing over the metering edge and directs same into a distribution assembly mounted under the material metering assembly and comprising venturi devices spaced along the hopper under the metering module and an air supply conduit. Each venturi device is connected to the air supply conduit and is adapted at an output end thereof for connection to a distribution conduit, and defines a product input opening. The flow structure is operative to direct the received granular material substantially equally into each of the product input openings.

Abstract: Each wing of a rear folding implement has a wing frame supported on rear wheels for movement along the ground, and a forewing frame and wheel pivotally attached to the wing frame. A center ball joint pivotally connects right and left inner wings and a center wheel assembly supports the center ball joint. The wings extend laterally and the forewing frames are in a lowered position supported on their wheels when in the operating position. To move the wings into a transport position, the implement is towed forward and the wings pivot about the center ball joint to trail rearward and the forewing frames are moved upward to narrow the implement for transport. An air seeder cart hitch is rearward of and near the center ball joint in the operating position, and when the wings trail rearward the cart hitch is near rear ends of the trailing wings.

Abstract: Various planting machines and planting methods are described. A planting method may include filling a seed pool with first-type seed, metering the first-type seed from the seed pool with a metering member, and then evacuating the first-type seed from the seed pool. The method may further include filling the seed pool with second-type seed, metering the second-type seed with the metering member, evacuating the second-type seed from the seed pool, and then refilling the seed pool with the first-type seed. First-type and second-type seed may be evacuated to separate temporary storage chambers, and the seed pool may be filled from the temporary storage chambers, as well as from bulk storage containers. A seed valve of a planting machine may include temporary seed storage chambers for different seed types. The seed valve may fill and evacuate a seed pool through rotation of various valve members and selective application of a vacuum.

Abstract: An agricultural implement system is provided including a fluid conduit configured to provide product to a ground engaging tool. The ground engaging tool is configured to deposit the product into soil. The agricultural implement system also includes an air source fluidly coupled to the fluid conduit, and configured to provide an air flow through the fluid conduit in a downstream direction toward the ground engaging tool. The agricultural implement system further includes a product delivery system fluidly coupled to the fluid conduit, and configured to transfer the product into the air flow. In addition, the agricultural implement system includes a product flow measurement system configured to determine a mass flow rate of the product based on a pressure drop between an upstream portion of the fluid conduit and a downstream portion of the fluid conduit, a flow rate of the air flow, and a velocity of the air flow.

Abstract: An air seeder apparatus has a frame and a plurality of furrow opener assemblies spaced across a width of the frame at a narrow row spacing, and a plurality of bulk product containers and a bulk meter mounted on each, one of which dispenses seeds through a distribution network to a seed tube on each furrow opener assembly. A plurality of singulating meter is provided, each dispensing singulated seeds to the furrow opener on one of the furrow opener assemblies. During singulating operation seeds are delivered to the singulating furrow opener assemblies only by the singulating seed meter, and during conventional operation seeds are delivered to the singulating furrow opener assemblies only by the bulk meter. A lift system, when in a singulating mode, maintains idle conventional furrow opener assemblies in the transport position while moving singulating furrow opener assemblies between the operating position and the transport position.

Abstract: A pneumatic system of an agricultural implement includes a radial fan coupled with a plenum. The plenum contains outlets which distribute the airflow into a plurality of product distribution lines for application to a field. An airflow deflector plate has a back face fixed on a sidewall of a region interconnecting the fan outlet and plenum inlet to modify the airflow pattern and obtain an airflow that is at a uniform pressure and flow rate for each product distribution line. The deflector plate is tapered with a narrow edge pointed upstream and includes front face having at least one generally rectangular groove with a bottom surface extending generally parallel to the deflector back face.

Abstract: One embodiment describes an agricultural implement. The agricultural implement includes a plurality of ground engaging opener assemblies that each excavates a trench into soil and deposits a granular product into the trench as the agricultural implement is towed though a field; and a first tool meter coupled to the agricultural implement and pneumatically coupled to a first portion of the plurality of ground engaging opener assemblies. The first tool meter instructs a pneumatic distribution system to supply the granular product to the first tool meter based at least in part on a first amount of granular product stored in the first tool meter; and pneumatically distributes the granular product to the first portion of the plurality of ground engaging opener assemblies.

Abstract: A row crop planter has a pneumatic system for conveying seeds to individual row units employing three-way splitters above certain master row units for supplying seed to each master row unit and a pair of associated slave row units. Each three-row splitter has an upper inlet chamber of annular shape with an offset inlet coupled to a conveying hose for receiving an air entrained seed flow, and an annular passageway extending downwardly from the inlet chamber to an outlet for delivering seeds to the master unit below. A pair of laterally extending slave outlet conduits extend obliquely upward and each has a jumper hose connecting with an adjacent slave unit. The flow circulating within the annular region allows seeds to fall downwardly and air to spiral upwardly into a supplemental air conduit. An air bypass passageway conveys air flow from the supplemental air conduit toward the slave outlet conduits.

Abstract: A device for feeding granular material, such as seed, fertilizer or pesticide is described herein. The device includes at least two metering devices (109), a first drive device (101) for generating a pressurizing airflow (FT) for pressurization of the metering devices (109), and a central container (102), which is arranged to, via respective feed ducts (103), with the aid of a respective feed airflow (FI), feed the material to the respective metering device (109). The device also includes a second drive device (201, 201a, 201b) for generating the feed airflow (FI) and a merging connection (118, 118?) for merging at least a part (FL) of the feed airflow (FI) with the pressurizing airflow (FT).

Abstract: In embodiments, a seeder may include a frame including a seed box and a rear roller. In embodiments, the seeder may be configured to removably couple with either a roller assembly or a disc blade assembly. In some embodiments, the seeder may include a front tray configured to receive two kinds of seed from two different seed boxes and disperse the seed at a position in front of the rear roller so that the seeds are planted at the same depth. In some embodiments, the seeder may further include a calibration tray which may have a width less than a width of the seeder. The calibration tray may be configured to receive seed from the seed box during a calibration procedure.

Abstract: In embodiments, a seeder may include a frame including a seed box and a rear roller. In embodiments, the seeder may be configured to removably couple with either a roller assembly or a disc blade assembly. In some embodiments, the seeder may include a front tray configured to receive two kinds of seed from two different seed boxes and disperse the seed at a position in front of the rear roller so that the seeds are planted at the same depth. In some embodiments, the seeder may further include a calibration tray which may have a width less than a width of the seeder. The calibration tray may be configured to receive seed from the seed box during a calibration procedure.

Abstract: In embodiments, a seeder may include a frame including a seed box and a rear roller. In embodiments, the seeder may be configured to removably couple with either a roller assembly or a disc blade assembly. In some embodiments, the seeder may include a front tray configured to receive two kinds of seed from two different seed boxes and disperse the seed at a position in front of the rear roller so that the seeds are planted at the same depth. In some embodiments, the seeder may further include a calibration tray which may have a width less than a width of the seeder. The calibration tray may be configured to receive seed from the seed box during a calibration procedure.

Abstract: An agricultural air seeder includes a tilling implement having a plurality of air lines. An air cart is coupled with the tilling implement, and includes a pneumatic distribution system with a plurality of air lines. A plurality of air line connections respectively interconnect between an air line associated with the tilling implement and an air line associated with the air cart. Each air line connection has a female connector and a male connector. Each female connector has an inside diameter with an annular groove, and a seal disposed within the annular groove. The male connector is positioned within the female connector and sealed with the seal.

Abstract: A depth adjustment for an agricultural seed planting implement has a register with notches and a handle that engages pairs of the notches to control the depth of a seed trench opening assembly. The handle has a first handle orientation and a second handle orientation for each pair of notches and provides two different depth settings for each pair of notches in the register.

Abstract: A seed meter for an agricultural planter in which the seed disc is rotatably mounted within a seed meter housing. As the seed disc rotates, the apertures in the disc rotate along a seed aperture path through a horizontally adjacent seed pool area. The seed disc includes cavities disposed along the seed aperture path to agitate the seeds in the seed pool area. A singulator having multiple co-planar singulator surfaces is biased against the seed side surface of the seed disc.

Abstract: A system includes an inductor assembly of an agricultural implement having an inductor box with a wall configured to separate an interior of the inductor box from an exterior of the inductor box, an inductor segment, and a mounting clip. The wall includes an inner surface in the interior and an outer surface on the exterior. The inductor segment includes a mixing portion and a delivery portion, wherein the mixing portion interfaces with the inner surface and is configured to mix agricultural product and airflow into a mixture. The delivery portion is configured to convey the mixture through the wall. The mounting clip is configured to form a seal between the interior and the exterior of the inductor box, and to interface with the outer surface and the delivery portion in an installed position to couple the inductor segment to the inductor box.

Abstract: A supply device for a single seeder via a flow of air from a main reservoir containing product to at least one auxiliary reservoir depending on its filling rate, each auxiliary reservoir being connected to the main reservoir by a respective leak-tight duct, the number of auxiliary reservoirs corresponding to the number of distributors of the single seeder. A regulating system is associated with each auxiliary reservoir and the regulating system has a sensor for detecting the level of product and a valve for regulating the flow of air in the corresponding auxiliary reservoir. A single seeder using a supply device according to the invention.

Abstract: An agricultural implement is provided that includes a first tool bar and a second tool bar each supporting respective ground engaging tools and fluid dispersal components. The second tool bar is pivotally coupled to the first tool bar. The agricultural implement further includes fluid conduits coupled to respective tool bars for conveying fluid to the respective fluid dispersal components. Additionally, each of the conduits has a flexible end adjacent to the other tool bar. Furthermore, the agricultural implement includes a fluid joint coupled between the first and second flexible ends and configured to provide a sealed connection between the first and second flexible ends during relative pivotal movement of the first and second tool bars in operation but to allow for uncoupling of the first and second flexible ends for servicing of the implement.

Abstract: The invention relates to a seeding machine (1) for introducing seed material into a soil (11), comprising a first ploughing device for drawing at least one furrow into the soil and a filling means for closing the first furrow, furthermore comprising a dust separator (5) through which air that is aspired during the seeding process and contains dust particles can be separated into an air component (13) and a dust component (7), characterised in that introducing means (10) for introducing the dust component separated from the air component into the soil are provided. The invention also relates to a seeding method.

Abstract: A seed tube guard for agricultural planters is cast from a high-chrome cast-iron alloy or manufactured from other wear-resistant material. The seed tube guard has right and left wear surfaces for engaging inner surfaces of a pair of opener discs. A fluid delivery channel is integrated within the body of the seed tube guard with an exit in the bottom surface for delivering fluid into a seed furrow ahead of a seed tube.

Abstract: A wireless communication system for agricultural vehicles, in which each vehicle has a global positioning system (GPS), a multi-channel transmitter/receiver module having a limited communication range, and a signal processor connected to the transmitter/receiver module. The transmitter is controlled by the signal processor to transmit on a predetermined communication channel a signal comprising a unique vehicle identifier and a signal indicating the current positional coordinates of the vehicle. The signal processor also analyzes the signals received from other vehicles within the communication range and determines from the identifier and the positional coordinates data when another vehicle is ready to perform a joint operation with the vehicle. Prior to initiation of a joint operation, the communication system is switched to a different communication channel.

Abstract: A soil opener comprises a tip attached to or integral with a body. The tip includes furrowing prow for cutting a furrow in the soil surface, a protrusion on the underside of the tip for cutting a trench within the furrow, and a seed distributor for depositing seeds within the furrow in laterally displaced seed rows. The body includes a seed passage for directing a seed stream to the seed distributor, a primary fertilizer passage for depositing a primary fertilizer stream, and a secondary fertilizer passage for depositing a secondary fertilizer. As the soil opener is moved across the soil surface, the body opener deposits primary fertilizer in the vicinity of the seed rows, and secondary fertilizer between the seed rows in a trench slightly below the surface of the seeds.

Abstract: A system for controlling air flow within an agricultural product metering system is provided. One system for distributing an agricultural product includes an air conveyance system having a blower configured to provide an air stream for moving metered product toward a distribution device. The air conveyance system is mounted on an air cart. The system also includes control circuitry mounted on an agricultural vehicle, and configured to adjust a speed of the blower based at least partially on a product flow rate from the air cart.

Abstract: An agricultural implement system is provided including a fluid conduit configured to provide product to a ground engaging tool. The agricultural implement system also includes an air source fluidly coupled to the fluid conduit, and configured to provide an air flow through the fluid conduit in a downstream direction toward the ground engaging tool. The agricultural implement system further includes a product delivery system fluidly coupled to the fluid conduit, and configured to transfer the product into the air flow. In addition, the agricultural implement system includes a product flow control system configured to determine a mass flow rate of the product based on a pressure drop through the fluid conduit, and to adjust product transfer into the air flow based on the determined mass flow rate of the product.

Abstract: A system and method for controlling air flow to a metering system is provided. One agricultural cart for distribution of an agricultural product in a field includes a metering system having a plurality of metering sections. At least one metering section is selectively controllable to not meter product while at least one other metering section is metering product. The agricultural cart also includes an air conveyance system having a blower and a conduit for producing and directing an air stream for moving the metered product toward a distribution device. The agricultural cart includes control circuitry configured to alter operation of the air conveyance system based upon whether the at least one metering section is metering or not metering product.

Abstract: A pneumatic on-demand seed delivery system wherein seed from the auxiliary hopper enters the seed meter through an opening beginning rearward of the vertical axis of the seed meter. And a retrofit kit for existing on-demand seed delivery systems, and method of retrofitting such existing pneumatic on-demand seed delivery systems, so as to provide an auxiliary hopper that communicates seed to the seed meter through an opening beginning rearward of the vertical axis of the seed meter.

Abstract: A pneumatic on-demand seed delivery system wherein seed from the auxiliary hopper enters the seed meter through an opening beginning rearward of the vertical axis of the seed meter. And a retrofit kit for existing on-demand seed delivery systems, and method of retrofitting such existing pneumatic on-demand seed delivery systems, so as to provide an auxiliary hopper that communicates seed to the seed meter through an opening beginning rearward of the vertical axis of the seed meter.