Mowing Deck 
Mowing Frequency
The regularity with which grass is cut. Typical examples of how this is expressed are: weekly; daily; three times per week. Mowing frequency is influenced by the growing conditions and season, especially temperature and available moisture, with drought and cold conditions reducing growth significantly, with subsequent reduction in mowing requirements.
Mowing Strip
A small area around the edge of a lawn. This is typically a strip of bricks, which are laid just below the bottom of the grass surface, eliminating scalping at the lawn edge and enabling the lawn edge to be neatly mown without encroaching into adjoining flower or shrub beds.
Mulching Mower
A rotary mower which chops up grass into finer clippings and returns them to the turf surface. This process helps to reduce fertiliser requirements and also acts as a fine, yet thin mulch to turf surface, which can be especially beneficial during dry periods. It is also referred to as a Recycling Mower.
Nap
The lateral growth of a turfgrass. This can be due to either the growth habit of a grass, especially if it spreads by stolons; or where maintenance operations, especially mowing, are carried out in the same direction on a regular basis. Regular brushing a turf surface helps to reduce nap, especially during periods of low mowing activity. Other activities to reduce and prevent nap are to vary the direction of mowing on a routine basis, as well as regular scarification, verticutting and grooming. In the USA this term is called Grain.
On Cut
The cylinder and bottom blade on a cylinder mower are set correctly, to produce a sharp, clean cut along the entire length of the cutting mechanism. On traditional cylinder mowers the cylinder would just touch the bottom blade; on some newer machines with high speed cylinder revolutions and fine blades there is often a small gap left between the bottom blade and cylinder because as the cylinder revolves it generates heat which expands the metal to produce a sharp cut of the grass. If the setting on these newer models was undertaken along the same principle of more established mowers with botto
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Overseeding
The action of applying grass seed to an area with significant bare and thin area being present. Usually this is carried out as part of a localised repair or main renovation activity, especially on winter pitches where worn areas can be quite prevalent. The application rates for overseeding will typically be medium to high: 35-50 g/m² (or even 70g/m²). Compare Oversowing.
Oversow
The intent to apply grass seed to an area with significant ground cover still present. Compare Overseed, although often these terms will mean the same thing of just the application of grass seed to an area. Whether there is really a difference between these two terms is a contestable point.
Oversowing
The action of applying grass seed to an area with significant ground cover still present. This is typically of in season oversowing of pitches to maintain sward density or many end of season renovation programmes where areas have not been excessively worn, which is typical on many golf and bowling greens. The application rates for oversowing will typically be low to medium: 17-35g/m². Compare Overseeding, although often these terms will mean the same thing of just the application of grass seed to an area. Whether there is really a difference between these two terms is a contestable point.
Overwatering
The application of too much water for the soil and weather conditions. Plants require a certain quantity of water to survive at different times of the year, some of which is applied as irrigation water, especially during the summer months.
Water can infiltrate and then percolate through soils at different rates, depending on features including, compaction, thatch content, soil texture and soil structure. Excess water results in surface ponding, waterlogging of the soil profile, the encouragement of shallow rooting in grasses, reduced soil stability, increased divots and surface unevenness,
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