A seed meter includes a seed disc rotatable in a direction of rotation. The seed disc has a plurality of seed apertures defining a circular path as the seed disc rotates and on which seeds from a seed source are entrained. A singulator is disposed along to the circular path. The singulator has a plurality of outer lobes and a first orientation lobe located downstream of the outer lobes. As the entrained seeds rotate along the circular path, the first orientation lobe contacts the entrained seeds to change their orientation. In some embodiments, the first orientation lobe may be disposed to remove excess seeds from the apertures and a second orientation lobe may change the orientation of the entrained seed.

An adjustable row cleaner includes a row cleaner assembly that functions to clear material from the ground surface. The adjustable row cleaner includes, in one embodiment, a connector that is in mechanical communication with both a row cleaner frame, to which row cleaner wheels may be pivotally mounted, and a first end of a translator member. The translator member may pivot with respect to the row unit frame and/or row unit sub-frame about a translator member pivot. The position of a translator member second end may be manipulated, thereby adjusting the maximum depth to which the row cleaner wheels penetrate the ground surface. The adjustable row cleaner may be powered or manually adjusted, and the position of the row cleaner wheels may be monitored and automatically adjusted via a control system.

A downforce controller for an agricultural implement having a double-acting hydraulic cylinder. The cylinder is configured to be coupled to an agricultural row unit and an agricultural toolbar for transmitting a net downforce between the agricultural toolbar and the agricultural row unit. A first pressure in a first chamber of the cylinder and a second pressure in a second chamber of the cylinder have counteracting effects on the net downforce. A manifold coupled to the cylinder is in fluid communication with the first chamber. A pressure control valve coupled to the manifold is in fluid communication with the manifold and the first chamber.

Openers for a seeder, configured to be adjustably engaged with a soil surface when in use; each opener having compliance to vertical and lateral excessive forces independently applied to soil-engaging parts: a fertiliser tine, a seed tine, a press wheel, a coulter, and a support wheel. The openers share a hydraulic circuit, linked to each internal frame-lifting ram so that localised rise and fall effects arising from soil surface irregularities are shared, maintaining a mean height. The seed tine of each opener is made liftable immediately the preceding fertiliser tine is displaced. The openers do not require external weight support.

Agricultural devices, row unit adjustment systems, and methods of adjusting a depth of a furrow are provided. In some aspects, an agricultural device is adapted to plant seeds and includes a frame, a furrow opener coupled to the frame and adapted to cut a furrow including a depth, a sensor adapted to sense a characteristic associated with planting seeds and generate a signal associated with the sensed characteristic, and a processing unit receiving the signal associated with the sensed characteristic. The depth of the furrow is adjustable based on the signal associated with the sensed characteristic. Such characteristic may be a characteristic of the soil, a force applied to the agricultural device, or a position of a portion of the agricultural device.

An arrangement for detection of the amount of material in a supply container of a machine for application of material to a field comprises a data entry device for receiving fill level data concerning an amount of material present in the supply container at a specific time point and an outflow sensor for detection of the amount of material that has flowed out of the supply container. A computer device connected to the data entry device and outflow sensor, the computing device is programmed to calculate the current amount of material in the supply container using the obtained fill level data and the signals of the outflow sensor obtained after the specific time point, and to issue a warning signal if the amount of material in the supply container goes below a predetermined level.

A method for micro-ridge mixed-sowing cultivation of rice includes: S1: draining away water at the maturity stage of the preceding crop until reaching a state allowing a harvester to operate; S2: harvesting the preceding crop, leaving the stubble, smashing the stalks of the preceding crop, and then spreading the smashed stalks on the stubble to form a rhizosphere layer for rice growth; S3: trenching the field to form ecological trenches; S4: flattening the standing stubble and the smashed stalks on the seedbed surface to form an underlying surface, molding seed-fertilizer-soil compounds into a ridge shape and fall the seed-fertilizer-soil compounds on the underlying surface to form ecological ridges, wherein a plurality of ecological ridges are formed between adjacent ecological trenches, and the seed-fertilizer-soil compounds are obtained by thoroughly mixing rice seeds, chemical fertilizers and soil at a mass ratio of 6 to 14:50 to 70:6,000 to 10,000.

A system for planting cover crop seeds in fields with standing row crops, including a high-clearance agricultural vehicle with a high-clearance toolbar, soil sealers, and a seeder with a reciprocator above the soil sealers to deliver various types of seeds onto the disrupted soil after which the soil sealers cover the seeds with soil.

An opener attachment for an agricultural row unit including a frame, an arm pivotally coupled to the frame, an opener disc coupled to the arm and configured to excavate a trench into soil, and a gauge wheel coupled to the arm and configured to block movement of the opener disc into the soil to control a depth of the trench. The opener attachment also includes a mechanical stop coupled to the frame and configured to block the gauge wheel and the opener disc moving toward the soil. In addition, the opener attachment includes an air bag configured to urge the gauge wheel and the opener disc toward the soil.

A seed placement device connected to a machine to transfer seed to a furrow includes a housing having a first opening through which seed is received and a second opening through which seed is discharged. An endless member positioned within the housing, and a drive member that controls movement of the endless member in cooperation with movement of the machine. The machine operates in a seeding direction at a travel speed, and the endless member discharges seed at a discharge speed and in a discharge direction. The discharge direction is approximately opposite to the seeding direction, and the discharge speed of the seed is at least 1.2 times the travel speed of the machine.