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KMID : 0364820080440040317
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Korean Journal of Microbiology
2008 Volume.44 No. 4 p.317 ~ p.325
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Effect of Quartz Porphyry on Growth of Creeping Bentgrass (Agrostis stolonifera) and Soil Bacterial Community Structures
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Koh Sung-Cheol
Choi Jung-Hye
Kim Byung-Hyuk
Kim Sang-Eun
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Abstract
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Recently there are difficulties in management of golf courses because of an ever increasing demand for golf as a leisure sports. Hence natural minerals as an amendment could be applied to improve and manage the physicochemical properties of the golf course soils in an environment-friendly way. In this study, quartz porphyry, which has been shown to be a good soil amendment for crop production, was tested for its effect on physicochemical properties of the golf course soil, growth of creeping bentgrass (Agrostis stolonifera) and changes of soil microbial communities in the soil. In general, amendment of 20% quartz porphyry into the soil turned out to be most effective in enhancing a proper growth of the grass leaves and roots. DGGE profile data showed that eubacterial species richness was also the highest at this level of the mineral treatment in which Actinobacteria and α-Proteobacteria were the dominant phyla. This appeared to be attributed to a low level of soluble organic matter content and decreased concentration of cations such as Ca2+, Mg2+, and K+.
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KEYWORD
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Actinobacteria, bentgrass, quartz porphyry, soil microbial communities
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