Power Harrow [2]

A small pedestrian operated machine used to cultivate a soil.

  Power Method

Any way of powering an item of equipment or machinery. The simplest power method is hand powered by human strength alone. The power methods for mechanically driven equipment can include mains electricity; rechargeable batteries; petrol, either two or four stroke; diesel; or liquefied petroleum gas, which is shortened to LPG.

  Power Rake

See Surface Preparation Rake.

  Power Unit

The type of device being used by a power method. This may be self-propelled by hand; an electric motor; or an internal combustion engine. It could also refer to animal power, such as horsepower.

  Pre-Season Rolling

This is typically used to refer to the type and amount of rolling carried out during February to April for the preparation of a cricket square in anticipation of playing season preparation work.

  Pre-Start Checks

Before using any item of equipment it is important, as well as good practice and a legal requirement, to carry out preliminary checks to ensure the equipment is not just safe to use but also that it can be used effectively and efficiently. All checks will inspect for any leaks, damage or obvious incorrectly fitted feature.

  Pricking

Shallow penetration, typically up to a depth of about 40mm, of a turf surface to improve surface aeration and specially to aid the infiltration of water. It is also helpful in providing a shelter for newly sown grass seed, so as to aid germination and to improve the washing in of a fertiliser into the rootzone.

  Proactive Seeding

A contemporary modern name for the overseeding of a turfgrass surface, especially golf greens, during the spring and summer seasons to take advantage of good germination and establishment rates of desirable grasses and to reduce the competition and problems which arise from undesirable grasses such as Poa annua. In practice this is just the use of different words for the common practice of overseeding in spring and late summer, which greenkeepers already carry out and aim for suitable environmental conditions to get the most from their seed. Where the term might differ slightly from tradit

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  Rear Roller [1]

A roller located at the back of a rotary mower, primarily used for striping and light firming of the sward after cutting.

  Rear Roller [2]

The main roller on a pedestrian cylinder mower, typically located beneath the engine.