Abstract: A alignment system is described for a blocking member for the transfer of seed from a seed meter with a seed meter housing to a delivery system with a delivery system housing. The blocking member may have a blocking face adjacent a seed path of the seed meter, the blocking face opening to a seed passage, and the seed passage extending through the blocking member to an interface with the delivery system housing. A first recess may be included on the blocking member, and a second recess may be included on the delivery system housing. When the seed passage of the blocking member is correctly aligned with the delivery system, a protrusion on the delivery system housing may be configured to seat firmly in the first recess and a protrusion on the seed meter housing may be configured to seat firmly in the second recess.

Abstract: Apparatus and method for dispensing a gel containing seeds for planting. A container (11) has a piston (13) driven by a lead screw (14) for expressing the gel through outlet (12). A line (17) is wound around a control rotor (16) and a free end is secured at a fixed location (19). As container (11) is moved away from location (19), line (17) unwinds and rotates rotor (16) to express the gel at a rate related to the movement of the container (11), so that the operator does not have to match the dispensing rate to the rate of movement. In other arrangements the container moves towards the fixed location, or between two fixed locations. Other metering members may replace the line. Materials other than seeds in gel may be dispensed.