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 Microbial biodiversity in the rhizosphere of Vetiver grass grown in Quang Nam Province and Da Nang City, Vietnam
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Tác giả hoặc Nhóm tác giả: Vo Van Minh, Doan Chi Cuong, Nguyen Xuan Huong, Do Thu Ha, Paul Truong
Nơi đăng: The Sixth International Conference on Vetiver (ICV6)
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; Số: ICV6;Từ->đến trang: 73;Năm: 2015
Lĩnh vực: Môi trường; Loại: Báo cáo; Thể loại: Quốc tế
TÓM TẮT
This paper reports the results of studies on the composition and distribution of soil microorganisms in soils taken above and around the rhizosphere of vetiver grass grown in some areas in Quang Nam and Da Nang. The composition and quantity of microorganisms in samples taken from areas planted with vetiver grass were greater than those without vetiver grass. In addition, greater quantity of microorganisms was found on the surface of vetiver roots than in zones further out in the rhizosphere; for example, the microorganism quantity in Phu Tho, Ai Nghia, Lien Chieu and Son Tra were in order of (168,1 – 14 – 12,3) x 106CFU/g; (198,1 – 17,3 – 1,37) x 106 CFU/g; (31,8 – 2,8 – 0,27) x 106 CFU/g and (28,2 – 2,6 – 0,18) x 106 CFU/g, respectively. This increase in soil microbes surrounding Vetiver root zones is most likely due to excretion from the vetiver root system in term of nutrient and oxygen supply.
ABSTRACT
This paper reports the results of studies on the composition and distribution of soil microorganisms in soils taken above and around the rhizosphere of vetiver grass grown in some areas in Quang Nam and Da Nang. The composition and quantity of microorganisms in samples taken from areas planted with vetiver grass were greater than those without vetiver grass. In addition, greater quantity of microorganisms was found on the surface of vetiver roots than in zones further out in the rhizosphere; for example, the microorganism quantity in Phu Tho, Ai Nghia, Lien Chieu and Son Tra were in order of (168,1 – 14 – 12,3) x 106CFU/g; (198,1 – 17,3 – 1,37) x 106 CFU/g; (31,8 – 2,8 – 0,27) x 106 CFU/g and (28,2 – 2,6 – 0,18) x 106 CFU/g, respectively. This increase in soil microbes surrounding Vetiver root zones is most likely due to excretion from the vetiver root system in term of nutrient and oxygen supply.
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