Overseeding
“ Re-sowing ” describes the introduction of seeds into an existing plant stand, especially in grassland and lawns . The opposite is the new sowing on a vegetation-free area.
Reseeding can be carried out automatically (sowing / through-sowing) or not automatically (overseeding). First, the lawn should be mowed deeply and the clippings removed. For mechanical reseeding, slot, disc, tooth groove or milling technology can be used. For example, the surface can be scored with a scarifier (approx. 1–3 mm). The row spacing should be a maximum of 10 cm. The recommended application rate is 20 kg of seed per hectare. A non-machine reseeding can be carried out together with other operations, for example as part of fertilization (fertilizer spreader, slurry tank) or the distribution of slug pellets. If several such operations take place, the amount of seed can also be divided into portions of up to 5 kg / ha. After the seeds have been brought in, the area can be lightly sprinkled (approx. 5 mm) with a soil substrate containing fertilizers such as peat . The success of the measure is crucially dependent on the water supply for the seed that is being sown. On dry / windy days, the area often has to be watered up to 10 times a day with small amounts. In addition, a care cut can weaken the competitive strength of the upcoming sward and thus promote the establishment of the seedlings.
Basically only the German ryegrass ( Lolium perenne ) is suitable for reseeding without restriction, as it shows rapid youth development and sufficiently high fighting strength. Seedlings of slower developing species are too much affected by the existing vegetation when they are established.
So-called coated seeds are also offered for reseeding in lawns. Here, the seeds are coated with a fertilizer mixture, which is intended to serve as a starting aid after germination.
swell
- W. Opitz v. Boberfeld: Grassland theory. Ulmer, Stuttgart 1994
Individual evidence
- ↑ Reseeding - lawn regeneration. Retrieved April 16, 2017 .