Abstract: An agricultural machine for the combined application of seed and granulate on an agricultural area includes a separating device, a portioning device, and a control device. The separating device has a rotationally drivable separating element for separating seed grains and the portioning device has a rotationally drivable portioning element for producing granulate portions. The control device matches the rotational movements of the separating element and the portioning element to each other to implement a predetermined depositing relationship of the seed grains and the granulate portions on the agricultural area.

Abstract: A hand-held spreader is provided having a base with a mechanism for spreading particulate material response to turning a hand crank. The base is universally attachable to hoppers of different types which provide particulate material to the base for spreading. Different types of hoppers when attached to the base can adapt the spreader to spread different particulate material, such as of seed or salt. Teeth may be provided along upper edge of the hopper for use in scooping up particulate material into the hopper. Another type of hopper which can be attached to the base has a closed top end to provide a sealed container of particulate material, and has a sealing member releasable from the hopper to allow flow of particulate material from the hopper to the attached base.

Abstract: The present invention is directed to an applicator having an agricultural product pneumatic conveying system which meters particulate material from one or more source containers at the application equipment and transports the particulate material to evenly distribute the particulate material from the applicator. The pneumatic conveying system employs supply lines connected between the metering devices at the source containers and delivery nozzles. The conveying system also includes a dynamic baffle system that directs the air flow towards a supply line detected as having increased resistance to the air flow in order to equalize the air flow into each of the supply lines. The baffle system accomplishes this by obstructing a portion of the air flow towards a supply line having less resistance to the air flow and concurrently re-directing the obstructed portion of the air flow into the supply line with higher air flow resistance.

Abstract: Described are antimicrobial polymer products made from mixtures of antimicrobial organometallic additives dispersed throughout a polymer host matrix.

Abstract: A seeding machine, such as a row crop planter, is described which is adapted to switch between two or more seed varieties as the machine traverses a field. The control system uses a programmed quantity of seed representing a number of seeds in the seed meter that need to be substantially consumed once the flow of a first seed variety is stopped before introducing a second seed variety to minimize seed mixing. The seed quantity can be determined by a calibration process or published from the manufacturer or third parties. The seed quantity can also be part of a seeding prescription that includes assignment of where each seed variety is to be planted in a field. The seed quantity and the distance traveled to empty the meter can be used to optimize the planting operation including the machine direction which can also be part of the prescription.

Abstract: A tillage shank assembly has one or more substance delivery tubes supported along the back edge of the generally upright shank of the assembly. A pair of side plates on opposite sides of the shank have rear margins that project rearwardly beyond the rear edge of the shank to define a protective gap within which the tubes are disposed. Laterally extending projections on the tubes are received within selected ones of a vertical series of holes in the side plates, depending upon the desired depth for the tubes. By temporarily removing a bolt that attaches the tops of the side plates to the shank, the side plates may be separated sufficiently to permit the projections of the tubes to be withdrawn from their current holes and reinserted into other holes to change their vertical locations. Replacing the bolt and tightening it down returns the side plates to their working positions.

Abstract: A double shoot seed and fertilizer placement unit has a leading shank that cuts a fertilizer trench in the soil, a seed shovel immediately behind but above the lower extremity of the shank to cut one or more seed shelves in the soil above and outboard of the fertilizer trench, a boot behind the shovel that places seeds on the shelf and then drops fertilizer into the fertilizer trench between and below the seeds, and a fertilizer guide member that rides in the fertilizer trench below the fertilizer outlet to maintain the integrity of the trench in preparation for the fertilizer and helps guide the fertilizer down to the bottom of the trench as it emanates from the boot.

Abstract: A planting assembly including a frame, a furrow opening mechanism, a seed tube for directing a seed into a furrow, a liquid source, a liquid delivery conduit having a delivery end, and a furrow closing mechanism. An adapter is configured for mounting to the seed tube, and a spray arm including a proximal end is configured for mounting to the adapter. The spray arm includes a central portion and a distal end, the central portion extends rearward such that the distal end is disposed above the furrow. The liquid delivery conduit is in fluid communication with the liquid source and the delivery end is adjacent to the distal end.

Abstract: A sub-surface seeding, fertilizing and watering device includes an opening blade having first and second sides extending between a leading edge and an aft edge. The opening blade has an upper surface and a lower surface extending between upper and lower edges respectively of the first and second sides of the blade. First and second wings are mounted to the first and second sides respectively in generally oppositely disposed relation so as to be cantilevered outwardly therefrom. The first and second wings extend between first and second forward wing edges and first and second aft-opening wing apertures. Seed, fertilizer or water are dispensed through the wing apertures. Oppositely disposed, rigid canards for subsurface soil agitation are mounted to the first and second sides, so as to extend cantilevered outwardly therefrom. The canards may be mounted between the leading edge of the blade and the first and second forward wing edges.

Abstract: A sub-surface seeding, fertilizing and watering device includes an opening blade having first and second sides extending between a leading edge and an aft edge. The opening blade has an upper surface and a lower surface extending between upper and lower edges respectively of the first and second sides of the blade. First and second wings are mounted to the first and second sides respectively in generally oppositely disposed relation so as to be cantilevered outwardly therefrom. The first and second wings extend between first and second forward wing edges and first and second aft-opening wing apertures. Seed, fertilizer or water are dispensed through the wing apertures. Oppositely disposed, rigid canards for subsurface soil agitation are mounted to the first and second sides, so as to extend cantilevered outwardly therefrom. The canards may be mounted between the leading edge of the blade and the first and second forward wing edges.

Abstract: A sub-surface seeding, fertilizing and watering device includes an opening blade. The opening blade has first and second sides extending between a leading edge and an aft edge on the blade. The first and second sides are generally symmetrical to each other. The opening blade is mountable to a material feeder so as to be generally vertically disposed when mounted thereon for partial submerging into soil to a first submerged depth during forward translation advancing the leading edge through the soil. First and second wings are mounted to the first and second sides respectively in generally oppositely disposed relation so as to be cantilevered outwardly therefrom. The first and second wings have first and second aft-opening wing apertures. First and second conduits cooperate with the first and second aft opening wing apertures for seed, fertilizer or fluid flow, as fed therethrough from the material feeder during the forward translation.

Abstract: A cylinder 16 has a piston 19 slidable therein, to force liquid from the cylinder out through a hollow needle 18. A pair of handles 11 extend outwardly from the cylinder, substantially normal thereof. Each handle carries a lever 30 pivoted thereon. In use, movement of the piston is less than the corresponding movement of a manually operable portion 32 (FIG. 1).

Abstract: A dual dispensing device to be attached to the frame of an apparatus for seed and fertilizer placement in the ground comprising an elongate body member to be pivotally connected to the frame of the apparatus, a first dispenser for fertilizer is pivotally connected to the elongate body member, the first dispenser includes a first knife to make a first furrow in the ground and a first tube to carry fertilizer to be deposited in the first furrow. A fluid biasing element is pivotally connected to the first knife and to the frame to control the pivoting of the first knife. A second dispenser for seed is fixed to the elongate body member to the rear of the first dispenser, the second dispenser includes a second knife to make a second furrow in the ground and a second tube to carry seed to be deposited in the second furrow. Prior to the seed entering the seed tube the seed passes through a seed and air deceleration and air removal chamber.

Abstract: A row cleaning attachment for seeding equipment comprising a coulter mounted between and behind two press wheels having a uniform circumference. The press wheels are independently spring biased downwardly into contact with the ground for holding and pulling the crop residue away from the planting line of the planting unit. The coulter has a larger diameter than the press wheels and is located so that the cutting edge of the coulter cuts the residue material as it is being tensioned between the press wheels.

Abstract: Agricultural soil is acidified by applying fertilizer, especially in the form of a clear solution, having an undesirably low pH value. The invention provides for applying a liquid neutralizing reagent in the vicinity of the fertilizer, and in the same operation as applying the fertilizer. A device for treating the soil has a liquid container, a conduit and dispensing means for applying the neutralizing agent. The device can form part of a cultivating implement having fertilizer applying means, e.g. a seed planter.

Abstract: Apparatus for laying seeds includes a towable frame from which one or more blades are supported for cutting a slot in the ground surface below, a seed and fertiliser chute feeds seed into the cut ground surface via a channel formed between the frame and blade(s) and tines which make a horizontal branch cut from the slot. A scraper device continually cleans the blade(s).

Abstract: A multi-function draft implement for opening, seeding, and fertilizing is disclosed. The implement provides a vertical knife opener for creating a vertical trench in the ground, a horizontal sweep for opening a horizontal swath in the ground and creating a seed-supporting shelf. The seed-supporting shelf thus created allows the seeds to be deposited on the shelf on either side of the vertical trench. Fertilizer can be placed in the vertical trench and the ground is replaced over the shelf-supported seed and fertilizer. In one embodiment, the vertical knife is biased with respect to the horizontal sweep and depth-controlling ground-engaging wheels are provided for controlling the depth of the planting sweep. In another embodiment, the vertical knife and the horizontal sweep are in adjustable fixed relation.

Abstract: A method and apparatus for seeding agricultural crops in which seed is placed in residue-free rows that are closely aligned and associated with bands of deeply placed fertilizer whereby the plants from each seed row may access more than one deep band of fertilizer for the purpose of improving the utilization of fertilizer, improving plant growth and plant yield. The method is further enhanced by an apparatus that can seed, fertilize, and move residue by means of large deep-running blades in combination with a residue knife, a seed placement device, and a fertilizer placement device.

Abstract: An attachment to an existing sweep of a seeding device is provided for additional dispensing of fertilizer. A protection tooth on the leading face of the attachment can be placed at a desired depth of its lower, free end to selectively adjust the level at which the fertilizer is deposited.

Abstract: An applicator device for injecting additives such as fertilizers, herbicides and the like into soil. The device comprises a housing from which extends an elongated injector bar moveable to selectively supply from the housing additive or water. The bottom end of the injector bar is provided with a point for easy insertion into the soil, in which point is an aperture through which additive or water from the housing flows into the soil.

Abstract: Relatively simple opener assembly structure for maintaining a generally constant vertical relationship between an opener and a trailing press wheel. The structure provides benefits of a parallel linkage design but obviates the extra links of, and provides better trash shedding and tripping characteristics than, a parallel linkage design. An opener arm and a press wheel arm are pivotally connected to a leg assembly for rocking about offset pivotal axes. As the press wheel arm oscillates over uneven ground, the opener arm is constrained for vertical movement with the central portion of a press wheel arm by a track and follower assembly. The opener arm is substantially shorter than the press wheel arm and causes the opener to rotate both rearwardly and upwardly upon encountering trash or other obstacles.

Abstract: A furrow opening point 40 is described for attachment directly to the seed boot of a hoe type seed drill between the split packer wheels. The furrow opening point 40 has an elongated body 50 that extends from an upper fertilizer receiving portion 56 to a bottom edge 54 of the soil engaging portion 52. The soil engaging portion has an upper section 61 and a lower section 62 for forming a two-tier furrow. A liquid fertilizer passageway 90 extends downward through the elongated body to the bottom edge 54 for dispensing liquid fertilizer at the base of the furrow. A dry granular fertilizer passageway 96 extends downward through the elongated body to a bottom surface 84 for dispensing dry granular fertilizer down a vertical channel formed along the trailing face 80 to the base of the furrow. A leveling section 100 forward of the seed opening 30 levels and firms the soil in the upper portion of the two-tier furrow to form a good seed bed.

Abstract: A conservation tillage attachment for a seed planting unit that functions to cut and clear away prior crop residue, fracture the soil ahead of the seed trench opener, and form a trench for the deposit of dry or liquid fertilizer offset from and parallel to the later formed seed trench. The attachment includes a single disk blade disposed forward of the seed trench forming unit. The single disk blade is disposed at an angle of approximately 5.degree. from the line defining the direction of travel of the seed planting implement. The attachment includes a selectively adjustable down force structure and a selectively adjustable depth control mechanism.

Abstract: A fertilizing and seeding apparatus for attachment to a cultivator shank includes an adapter for rigid attachment to the cultivator shank and a fertilizer blade and a double blade seeder. Only forward pivotal motion of the tools from a normal operating position is readily permitted thus minimizing possible clogging of fertilizer and seed outlet apertures, and/or facilitating the cleaning of such apertures.

Abstract: A debris and soil shaver for no till farming is disclosed which has a disk-like member which floats up and down as it is pulled across the ground surface. The disk is angled with respect to a predetermined direction of travel of an agricultural apparatus which is adapted to pull the shaver. The disk is rotatably mounted to a first support member about a central transverse disk axis. The first support member is pivotally mounted to a vertical second support member about a pivot axis. The pivot axis and central transverse axis are angled with respect to one another. The second support member is clamped to the agricultural apparatus which pulls the shaver. With such a construction, pivotal movement of the first support member about the pivot axis causes the angle of the disk relative to the ground surface to change. The angle adjusting prevents the disk from engaging too much soil and allows the disk to seek a path of least resistance as it rolls across a planting field.

Abstract: A dual air system for separately conveying fertilizer and seed in an implement such as an air drill or air seeder which includes an adjustable divider arrangement for providing a small amount of starter fertilizer to be placed with the seed. The total fertilizer metered by a fluted feed wheel is divided into two streams by an adjustable knife plate. A pivoting baffle plate resting against the knife plate deflects one of the two fertilizer portions to the fertilizer air system. The other fertilizer stream is delivered to the seed air system. The overall rate of fertilizer application may be adjusted without affecting the total amount of fertilizer provided to the seed air system.

Abstract: An opener assembly for fertilizing, tilling and seeding in one pass. An opener body is removably attached to an upright support leg and mounts a replaceable fertilizer banding knife. A replaceable sweep blade fixed immediately behind the knife to slice weed roots and firm the seedbed. A seed plenum located above the sweep blade receives a stream of seed through a channel in the opener body and divides the seed into left- and right-hand rows which are sown over the firmed soil. The forward central portion of the sweep is notched and is received over the opener body closely adjacent to the fertilizer knife to provide a compact structure, and a mounting tab at the rear of the sweep cooperates with a bolt and captive nut arrangement to provide quick and easy replacement of the sweep. The entire opener body may be removed from the support leg to change an implement from one type of operation to another.

Abstract: An agricultural planter in which three coulters are mounted on a single shaft, which shaft is supported at each end with side supports carried by the frame of the planter. A main large diameter coulter is used to break the soil to make a furrow, another coulter of smaller diameter is used to place fertilizer in one band and yet another coulter of yet smaller diameter is used to plant seed in another band with all three coulters being mounted on a single shaft. The structure described herein makes it possible to mount all three coulters on a single shaft, and yet permit each coulter to rotate independently of one another while operating as a unit.

Abstract: An apparatus and method are described which allow for placement of fertilizer at an optimum separation distance below seed at the time of seeding with a minimum of soil disturbance so that the creation of high ridges adjacent to the seed row is avoided. The apparatus includes a narrow first furrow opener for opening a narrow furrow for fertilizer; a wider second furrow opener attached to the first furrow opener for opening a seed furrow above the first furrow simultaneously in time and at a slightly differential position; a feed tube attached to the trailing edge of the first furrow opener for feeding fertilizer into the fertilizer furrow as it is opened, and a seed deflector for deflecting seeds rearward so that they do not fall into the seed furrow before the fertilizer furrow is filled with soil. The device can be used with existing implement shanks such as a grain drill opener shank.

Abstract: Apparatus for seed and fertilizer placement in the ground comprises a knife followed immediately by a first tube for depositing fertilizer and a second tube spaced therefrom for depositing the seed. The second tube can be adjusted horizontally and vertically and particularly to a position scraping the side of the furrow formed by the knife to deposit the seed at the side. A packer wheel mounted on the same support as the second tube follows the second tube and runs in the furrow to press down soil over the seed and fertilizer. The packer wheel is rotationally molded from polyethylene.

Abstract: A seed drill has a frame, reservoirs, sowing shares, at least two separate inlets and outlets for two different materials, and a depth-guide or pressure roller behind each sowing share. Variable amounts of one material are conveyed to the forward outlet and of the other material to the rear outlet through separate conductors inside the sowing shares for application of the soil. The outlets are separated along the direction of travel. There is a narrow ripping structure on the forward edge of each sowing share to rip up the soil and produce a furrow. An expansion structure that extends down into the furrow is positioned in the vicinity of the rear outlet of each sowing share. The expansion structure is at least somewhat wider than the ripping structure. The bottom end of the expansion structure is higher than the bottom of the point of the ripping structure.

Abstract: Apparatus for the combined planting of seed and application of fertilizer. The apparatus has a soil point for cutting a narrow slot-like furrow in soil. A shovel for opening a second, wider opening in the soil is located above and behind the soil point in alignment therewith. These two furrow cutting devices co-operate to form a single furrow having a narrow bottom part and a wider top part. An upright plate-like shoe member having a width similar to that of the narrow bottom part of the furrow is located immediately behind the soil point and prevents soil from falling into the narrow part of the furrow. A seed delivery tube is located immediately behind the shovel above the shoe member between the forward and rearward ends of the shoe member. A fertilizer delivery tube is located immediately behind the rearward end of the shoe member.

Abstract: A foldable drill implement has a supply hopper mounted on a center frame section and a rearwardly mounted broadcast hopper extending onto wing frame sections. Various augers connect the supply hopper to the broadcast hopper and maintain a level of fill in the broadcast hopper. Folding of the wing section relative to the center frame section utilizes swing plates and spacer plates to dampen oscillation of the wing sections. Controls regulate flow of material by sensing accumulated excess material and deactuating the augers. A differential assembly is provided for sensing torque pressure due to an accumulation of material in transverse broadcast augers to regulate flow.

Abstract: The invention relates to a device in a combined drill for spreading seed and fertilizer simultaneously and comprising a container. The latter is divided by a wall into two compartments of which one is intended to take up the seed and the other to take up the fertilizer. The two compartments are connected by channels to drill coulters or spreaders for covering and spreading, respectively, of the two materials. The two openings of the container (11) are provided with swingable guide plates (30,31,36) to increase the size of the openings and thus make it possible to fill the container, for instance from a load vehicle.

Abstract: An improved seed planter for a chisel plow includes a boot connected by a pair of leaf spring rods to the vertical shank of the plow. A bracket for connecting the spring rods to the boot and for gauge or press wheel attachments is detachably coupled to the rear of the boot by a quick-releasing pin that engages apertures in tabs affixed to the boot. The tabs mate with slots on the bracket. Thus, the depth of the boot may be regulated independently of the spring rod bias.

Abstract: A seed drill has a hoe point operable to create a furrow and a fertilizer feed shank to apply fertilizer in the furrow. A seed tube is operatively positioned behind the hoe point and fertilizer feed shank within the furrow and is vertically adjustable relative to the fertilizer feed shank and hoe point. An adjustable hoe bed provides vertical movement of the hoe points and seed tubes relative to the main frame of the seed drill. An adjustable banding cup adaptor meters the feed of fertilizer to either the fertilizer feed shank or the seed tube. V-shaped packer wheels create V-shaped soil compaction which allows for water retention and plant protection.

Abstract: A furrow opener shank for use with seeders has seed outlets and fertilizer outlets at the lower end thereof, and includes a sealer plate which will permit the depositing of anhydrous ammonia or liquid fertilizer in a deep furrow and which positively seals the furrow prior to depositing the seeds in the furrow. The sealer plate has wedges that form a pair of grooves or small furrows spaced laterally of the center line of the furrow to provide pockets for the seeds being deposited. The shank has dual outlets for seed at the lower end so that seed is deposited in each of the furrows that are being formed by the sealer plate to keep the seed separated from the fertilizer to insure good germination and rapid growth as well as insuring placement of the seed in regions that are most likely to have moist soil.

Abstract: A planting tool especially for minimum tillage operations has a leading rolling coulter and an elongated, rigid knife behind the coulter to hold open a slot cut in the soil by the coulter. Blades mounted on the vertical knife cut lateral slices in the soil extending outwardly from each side of the slot and between the soil surface and the slot bottom. A fertilizer conduit deposits a band of fertilizer in the bottom of the slot and seeds gravitate through a seed tube onto a V-shaped deflector which directs them in both directions into the lateral slices in the soil. Press wheels mounted on the knife close and recompact the soil after the seeds are planted outwardly and above the band of fertilizer in the slot. The press wheel also serves as a gauge in conjunction with a flexible tool mount to regulate the depth of operation of the tool components relative to the soil surface.

Abstract: A fertilizing and seeding apparatus for attachment to a cultivator shank includes an adapter for rigid attachment to the cultivator shank and a fertilizer blade and a double blade seeder. Only forward pivotal motion of the tools from a normal operating position is readily permitted thus minimizing possible clogging of fertilizer and seed outlet apertures, and/or facilitating the cleaning of such apertures.

Abstract: A fertilizer dispensing disc assembly is adapted for direct attachment to a planter unit for vertical movement in unison so that fertilizer is dispensed at a uniform depth relative to the planted seeds. The ground opening coulters of the assembly are caster-mounted forwardly of the planter disc, thereby preventing interference with the steering of the planter implement.

Abstract: A shank for use in a hoe-type drill designed primarily for minimum till or no-till farm operations has a sealing arrangement for permitting the application of anhydrous gas or other gaseous fertilizers in a deep application, and, at the same time, seeding and applying longer lasting fertilizer, such as granular or liquid fertilizers at different depths. The problems with applying gaseous type fertilizers at the same time other operations are occurring have been substantial because of unwanted escape of the gas prior to the closing of the furrow in a multiple operation; freezing up of the seed and granular fertilizer outlets as the gas evaporates; as well as permitting dry top soil to fall into the furrow to result in a dry seed bed, particularly in semi-arid farming regions where no-till farming is carried out.

Abstract: An agricultural seeder having a plurality of spaced openers for application of fertilizer in a seed row and at a spaced distance therefrom. The implement is supported for locomotion by a primary lower frame which in turn supports a secondary, vertically pivotable, upper frame. Hydraulic linkage communicates between the frame elements to move the upper frame relative the lower frame to raise applicators from the earth when necessary. The upper frame carries a plurality of spacedly arrayed openers and associated material applicators, which are hydraulically mounted to allow vertical adjustment and constant pressure depth maintenance.

Abstract: A conservation no till apparatus for placing seed and fertilizer into the ground in one operation as pulled through the field includes a main implement frame having ground engaging support wheels. Hoppers for supplying the seed and fertilizer are supported on the ground separately from the main implement frame. A plurality of ground working units are mounted to the main implement frame in separate laterally spaced relation by four-bar linkage assemblies. Each ground working unit is thus movable by its linkage assembly between a raised transport position and a lowered ground engaging position, with the linkage assembly for each unit permitting that unit to move vertically independently of the other units when the units are in the ground engaging position. Each ground working unit includes a unit frame and a plurality of ground working tools staggered laterally and longitudinally for engaging the ground and creating separate furrows when the unit is in its ground engaging position.

Abstract: A furrow opener shank for use with seeders has seed outlets and fertilizer outlets at the lower end thereof, and includes a sealer plate which will permit the depositing of anhydrous ammonia or liquid fertilizer in a deep furrow and which positively seals the furrow prior to depositing the seeds in the furrow. The sealer plate has wedges that form a pair of grooves or small furrows spaced laterally of the center line of the furrow to provide pockets for the seeds being deposited. The shank has dual outlets for seed at the lower end so that seed is deposited in each of the furrows that are being formed by the sealer plate to keep the seed separated from the fertilizer to insure good germination and rapid growth as well as insuring placement of the seed in regions that are most likely to have moist soil.

Abstract: A second crop is planted in a field by first cutting and removing the majority of a first crop from the field, seeding the field with the second crop, and then immediately applying the cut portion of the first crop over the seeded field as a mulch. A planter including a cutting assembly and a row planting assembly is provided to accomplish the above steps in a single pass over the field.

Abstract: A seeder with sowing shares and with two separate inlets and two separate outlets for the various materials like seed and fertilizer that are to be applied. The different materials can always be conveyed as desired to one or another inlet or outlet from a reservoir on the seeder through supply hoses. Guide mechanisms for diverting the supply of materials to the separate outlets of the shares are located between the reservoirs and the outlets.

Abstract: An applicator for dry and liquid fertilizer includes a knife for forming a slot in the soil, a dry fertilizer-conduit mounted behind the knife and formed into a U-shaped channel with an elongated, upright slot at the rear, and a flexible hose for liquid fertilizer removably wedged in the slot and forming the rear wall of the channel. If the dry fertilizer conduit becomes plugged or restricted, the liquid fertilizer hose is removed, and a tool may be used to clear the conduit.

Abstract: Liquid applications of materials such as herbicides usually are broadcast over the field and then incorporated by harrowing or the like. The present device utilizes a plurality of open based boxes having a rotary cultivator therein with a spray nozzle attached to a supply of liquid chemical under pressure thus restricting the application of the chemical to a band the width of the box and incorporating it at the same time. Rake teeth smooth out the soil behind each applicator and a seeding or planting machine may be hitched behind the incorporator followed by a packer so that the entire chemical treatment, incorporation thereof, planting and packing can be undertaken in one pass over the field.

Abstract: A seed drill for outputting seed material and fertilizer, having a frame that supports itself on the soil via runners, at least one supply container unit for seed material and fertilizer, and cultivator, chisel or hoe shares arranged in rows one behind the other and movable in a vertical plane, the materials being conveyed to said shares in adjustable amounts via tubular lines and under gravity for placing into the soil. The shares are guided separately from one another by a depth guidance mechanism for their depth of penetration into the soil.

Abstract: A fertilizer knife adapted to be attached to a planter. A housing is adjustably attached to the fertilizer knife and an adjustable mechanism is provided for permitting the knife to be adjusted vertically with respect to the housing, thereby adjusting the effective depth that the fertilizer, in a liquid form, will be released. The fertilizer knife is attached to the housing whereby the fertilizer knife will accurately track in front of the line into which the seeds are being planted, and this pivoting feature will also permit fertilizer knife to be deflected to one side or the other temporarily when rocks or other potentially damaging obstructions are encountered. The fertilizer knife has a leading edge extending from a point in close proximity to a vertical pivotal axis, and tapers downwardly and rearwardly therefrom.