Abstract: A field planting system for use in conjunction with large span and wheel tower irrigation apparatus to place seed in a field across a number of rows simultaneously. Seed is suspended uniformly in a gel solution and injected into a stream of carrier water. The seeds, suspended in water, travel in piping separate from irrigation piping to a manifold suspended from the overhead span section. Each manifold distributes seed and carrier water to a plurality of drop tubes. A tube valve located in each drop tube is closed to permit the manifold to be charged with seeds and water under pressure. Once the manifold is charged, the tube valves open simultaneously and the water and seed discharges from the manifold through drop tubes to a planting shoe. The planting shoe includes a forward nozzle to emit a high pressure stream of water to excavate a small trench or furrow into which the seed is dispensed.

Abstract: In the case of a method for sowing separate seeds in a furrow made by a ploughshare, the separate seeds run in a guide-device, are trapped in the vicinity of the ploughshare, are stored intermediately for a short time and are then released into the furrow. Upon being trapped, the individual seeds are stored intermediately spot-wise in relation to an axis corresponding to the direction of release and under a centering action. The individual seeds are accelerated, by a brief fluid-pulse in the direction of release, from the stationary intermediate storage position and are released into the furrow.

Abstract: A quick pneumatic coupling particularly well adapted for use in a folding agricultural planter comprises a rigid plastic funnel mounted to the end of a first conduit and a flexible and resilient rubber flange member mounted to a second conduit. The inner surface of the funnel forms a sealing surface which is contacted by the flange when it is inserted into the funnel. The coupling can be automatically coupled and decoupled by pivotally inserting and withdrawing the flanged member into and out of the receiving funnel.