Bench Setting

The height of cut for a mower when set on a firm, solid surface. This is usually the height that is mentioned when referring to a height of cut, although in practice the actual cut height might be less due to ground conditions.

  Bents [1]

The genera of Bent grasses (that is the Agrostis species) used in a turfgrass situation.

  Bents [2]

The annoying flowering stem of perennial ryegrass, that often develops on infrequently mown turf during the summer. The old-fashioned name for this latter feature is Soldier.

  Boom Irrigation

An overhead irrigation boom, usually of considerable length, which is commonly used to irrigation racecourse or polo surfaces.

  Boom Sprayer

A trailed or mounted sprayer with a range of spray widths depending on the boom selected. For small width booms of 1.5m to 3m, these may typically be powered by electric motors, being operated by ATVs, or similar. For larger boom widths from 3m-6m and greater, then these will usually be tractor mounted or trailed and powered by a PTO. Nozzles which are located on a boom are typically spaced at 0.5m apart, with a nozzle usually being located at the ends of each boom.

  Bottom Blade

The metal strip and edge against which the blades on a cylinder, of a cylinder mower, move over to enable a grass surface to be evenly cut. It is also referred to as Bed-knife.

  Bottom Dead Centre

The position of the top of a piston when it is at its furthest from the top of a cylinder, being at the bottom of a stroke of an internal combustion engine.

  Bottom-dressing

The application of a bulky material which is applied to a turf surface that has been solid-tine or hollow-tine spiked and is then well brushed or worked by other means into the tine holes. This is a variation of top-dressing with the focus on ensuring the applied material is almost totally worked into the soil profile, rather than either the sward surface or the sward surface and tine holes, which is typical of just the top-dressing activity. The term can also be referred to as soil profile dressing.

  Boxing Off

The collecting of grass clippings in a mower box.

  Boxing Off Turf

Where turf has been cut to an uneven depth by machinery or if cut from a sward using a turfing iron, then the turf would be placed upside down in rectangular, 3-sided, shallow wooden tray (about 40mm in depth, but his could vary depending on needs and design) and the excess soil would be trimmed off using a sharp blade, traditionally a scythe. Care was needed as the blade was firmly held by hand at each end and carefully pulled towards you, typically at waist height.