Mulching

Mulching means grass cuttings are left lying on the lawn. It's important that the volume of cuttings is not too great and for the cuttings to be finely chopped and evenly distributed. The nitrogen in the cuttings is quickly mineralised and is a truly natural fertiliser to plants. And tests have proven that repeated mulching works!

Mulching tips

A healthy lawn will produce about 1.5-2.0 kg of cuttings per year, so a 1,000 sq. m lawn will produce 1.5-2.0 tonnes! Disposal of cuttings as garden waste or by composting is not always possible, which in itself accounts for the growing popularity of mulching.

The lawn should be mown slightly more often with the mulching system. But remember, mowing will take less time as you don't have to keep emptying the grass box. 

Use a VIKING lawn mower. It chops up the grass cuttings extremely finely and distributes them evenly without any clumps. 

Shorten the grass by about one-third at each mowing, less in dry weather. 

It's best to mow when the grass is dry. If the grass is wet, mow a bit more slowly and cut less off, to avoid clumps. 

Always work at maximum engine speed (full throttle) and make sure the mower blades are sharp. 

Check the mower housing regularly and clear away any debris. 

Watch out for overlapping swaths. 

Very long grass should always be mown in stages. 

Vary the direction of mowing. That makes sure all the grass is covered and the cuttings are more evenly distributed. The result is a more homogeneous cutting pattern.

Mulching patterns

A long-term test carried out by the University of Natural Resources and Life Sciences, Vienna on behalf of VIKING provided the proof. A 1,000 m² area of lawn was cut using a standard mower over a four-year period and the cuttings disposed of elsewhere. Quantities of mineral fertilizer were applied (2). At the same time, another lawn the same size was tended with a VIKING mulching mower and the grass cuttings always left in situ (1).

Mulching results

Result:

Consistently denser turf and lusher green with 21 mulch mows per year throughout the growing season 

Four times more effective than mineral fertilization on the control area 

The recycled nutrients correspond to exactly the optimum requirements in terms of both quantity and proportions 

Good for the environment 

Organic nitrogen binding in the mulch material prevents leaching. The nutrients are released slowly, sustainably and evenly. And considerable quantities of fertilizer are saved – that's good for the environment as well as for the wallet. 

Mulch mowing promotes grass growth and that reduces the amount of thatch. A lawn that's well supplied with nutrients prevents weeds and moss. The original species composition is preserved. On the fertilized area, on the other hand, significant species shift had taken place after four years, allowing the proportion of thatch to increase faster.