Record ID No. |
4321 |
Author(s) |
Aamlid T.S., Andersen T.E., Kvalbein A., Pettersen T., Jensen A.D. , 2014 |
Affiliation |
Bioforsk - The Norwegian Institute for Agricultural and Environmental Research, Grimstad, Norway, Email: trygve.aamlid@bioforsk.no |
Title |
Composted garden waste as organic amendment to theusga-rootzone and topdressing sand on red fescue(Festuca rubra) greens |
Source. Vol.(no):Page |
European Journal of Horticultural Science 79(3): 87-96p. |
Categories |
Mycorrhiza General |
Subjects |
Soil plant relations |
Sub-subjects |
Nursery Management |
Host |
Festuca rubra, Poa annua |
Organism |
Laetisaria fuciformis |
Country |
Norway, Northern Europe |
Abstracts |
In Scandinavia, red fescue (Festuca rubra) requires less pesticides, fertilizers, irrigation water and energy formowing than other species used on golf greens. USGAgolf greens have traditionally been constructed withpeat as organic amendment to the sand-based rootzone,but compost could be a sustainable alternative.Our objective was to evalute the effects of using compostedgarden waste (commercial product 'Green Mix';GM) in the rootzone or topdressing sand during grow-inand maintenance of a young green aiming for a monocultureof red fescue. A field trial was carried out fromAug. 2011 to Nov. 2012 at Bioforsk Landvik, SE Norway.GM rootzones were compared with peat-amended rootzonesand GM topdress with straight sand topdress ina factorial design with four treatment and four blocks.Plots were seeded with 97% red fescue and 3% annual bluegrass (Poa annua) to study the competition between the two species. Because of a higher nutrient content,fertilizer inputs during grow-in from August to November2011 were 50% lower to the GM rootzones than tothe peat-amended rootzones, but this reduced the tillerdensity by 34% suggesting that a lower reduction infertilizer inputs had been more appropriate. In 2012,when all plots received the same amount of fertilizer, GMin the rootzone and/or topdress gave significant improvements in turfgrass general appearance, tiller density,autumn color and resistance to red thread (Laetisaria fuciformis), but annual bluegrass encroachment was worse on GM rootzones than on peat-amended rootzones until July 2012 when it disappeared from all treatments.The percentage of roots colonized by mycorrhiza was slightly but significantly higher for annual bluegrass than for red fescue in spring 2012 and became three times higher on GM rootzones than on peat amended rootzones during 2012. In conclusion, thereare many benefits of using mature and homogeneouscompost of garden waste in the rootzones and topdresson red fescue golf greens |