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En greens åldrande

förändringar av växtbäddens biologiska, fysikaliska och kemiska egenskaper under en sexårsperiod

Blombäck, Karin (2008). En greens åldrande. Technical Report. Uppsala: (NL, NJ) > Dept. of Soil Sciences, Sveriges lantbruksuniversitet. Emergo ; 2008:1
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Abstract

The success of a golf green construction cannot be fully judged until after some years after establishment when the green has been exposed to stress from players, maintenance and weather. This project aimed to investigate the changes of different biological, chemical and physical soil parameters in a green over a 6 year period. The green was built in 1999 as a research green at Fullerö Golf Club in the Mälar region in central Sweden. It was built according to USGA recommendations and included treatments with different levels of organic matter content (2, 3 and 4 % of weight) and two different types of organic amendment (fen peat and composted chicken manure mixed with Sphagnum peat). Changes in soil biological activity (C-mineralization), total C and N, nutrient elements, water holding capacity, porosity and bulk density were determined during the period 1999-2004. The effects on soil biological activity of different organic matter contents and qualities in the rootzone mix only lasted during the first year after establishment. Thereafter, the production of fresh organic matter residues, mainly roots, seemed to be the most important factor regulating the biological activity in the soil. Total C slightly decreased in all treatments, whereas there was a tendency for total N to increase in some of the treatments. The soil pH and concentrations of all studied nutrients except phosphorus increased in all treatments,. The rootzone with 4% peat withstood compaction better than the rootzones with 2% or 3% peat. There was a significant loss of pores 100-600 μm in size over the 6 year period, especially in treatments with 2% and 3% organic matter content. This dramatically decreased the saturated hydraulic conductivity (Ksat). Ksat was more related to the presence of pores >100 μm (air-filled porosity) than to organic matter content in the soil mix in the 6 year old green. Turf grass production was highest in the rootzones with 4% peat and lowest in rootzones with 3% peat. There were no difference in root distribution between the different rootzones 6 years after construction.

Authors/Creators:Blombäck, Karin
Title:En greens åldrande
Subtitle:förändringar av växtbäddens biologiska, fysikaliska och kemiska egenskaper under en sexårsperiod
Series/Journal:Emergo (1651-7210)
Year of publishing :2008
Number:2008:1
Number of Pages:20
Place of Publication:Uppsala
Publisher:Institutionen för mark och miljö, Sveriges lantbruksuniversitet
ISSN:1651-7210
Language:Swedish
Publication Type:Report
Refereed:No
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Soil science
Keywords:biologisk aktivitet, organiskt material, porositet, bindningskarakteristika, rotutveckling
URN:NBN:urn:nbn:se:slu:epsilon-1-83
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-1-83
ID Code:3385
Department:(NL, NJ) > Dept. of Soil Sciences
Deposited By: Karin Blombäck
Deposited On:15 Sep 2010 00:00
Metadata Last Modified:02 Dec 2014 10:21

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