Abstract: Nitrogen containing fertilizers are combined with a plant growth regulator, of the type which retards gibberellin synthesis in plants, in a ratio of nitrogen to plant growth regulator of at least 40 to one. The resulting combination fertilizer composition, when applied to vegetation at the rate of 0.006 to 0.6 pounds per acre of plant growth regulator, delivers nutrients to plants in a fashion that more closely approximates their needs than any previously known plant nutrient compositions. Preferred plant growth regulators which operate by retarding gibberellin synthesis are paclobutrazol and flurprimidol which may be used as the only plant growth regulator in the combination fertilizer composition or together with a very small amount of a second plant growth regulator, such as mefluidide.

Abstract: A slow release particulate fertilizer product in which the fertilizer particles are encapsulated with a sulfur coating. The sulfur coating is substantially crystalline and contains in admixture therewith from 0.05 to 2% (by weight of the coating) of a substituted symmetrical dialkyl polysulfide plasticizer as the sole organosulfur compound in the admixture. Fertilizer efficiency over standard sulfur coatings improves typically 40-50% with the plasticized sulfur coatings.

Abstract: A spreader for particulate material, the spreader being of the broadcast type having a hopper from which particulate material is discharged onto a rotating impeller. To provide adjustment for materials of various physical properties, a conically-shaped deflector is mounted between the hopper and impeller. The deflector is helically shaped at the bottom so that it has a gradually varying radius. By rotary adjustment of the deflector, particulate material can be discharged onto a preselected portion of the impeller.

Abstract: A rotary spreader for particulate material having a hopper for the particulate material and an impeller adapted to broadcast the material as it is discharged from the hopper. The impeller has a ridge enclosing the central portion of the impeller and the impeller is mounted in close proximity to the hopper so that discharged material is contained within the enclosed central portion of the impeller to stop further flow of particulate material when the impeller is not rotating.

Abstract: A hole cutter for plastic tubing comprising a pair of opposed members pivotally joined at one end thereof, means between said opposed members for limiting their separation in open position, recesses within the opposed members for gripping a tube and a hollow cylindrical blade rotatably mounted on one of the opposed members, adapted upon rotation to cut a hole in a tube gripped in the cutter.

Abstract: A timed water shut-off device of the type primarily useful for home gardens and lawns. The device comprises a water conduit containing a ball valve, a timer and timer housing rotatably mounted on the conduit and a plunger directly linking the timer and ball valve to permit flow of water for a preselected time.

Abstract: A rotary sprinkler of the impact type having a manually settable mechanism for both selecting and displaying an overall pattern configuration of sprinkler stream coverage. The manually settable mechanism comprises two concentric abutting surfaces, one being rotatable and the other being fixed relative to the sprinkler stem. The surfaces in combination indicate the pattern configuration. The rotatable surface includes a cam which engages a first or a second cam follower on a water stream deflector assembly to provide a first or a second patterned configuration of sprinkler stream coverage.

Abstract: A variety of Kentucky bluegrass having a good level of disease resistance, excellent turf performance and excellent seed yield.

Abstract: A variety of Kentucky bluegrass having a high level of disease resistance, excellent turf performance in the sun and shade, and a good to medium level of seed yield potential.