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Journal of Zhejiang University SCIENCE A 2000 Vol.1 No.4 P.442-447



Author(s):  A. M. EL-ghamry, HUANG Chang-yong, XU Jian-ming, XIE Zheng-miao

Affiliation(s):  College of Environmental and Resource Sciences, Department of Resource Science,Zhejiang University, Hangzhou 310029,China

Corresponding email(s): 

Key Words:  metsulfuron-methyl, microbial biomass C, microbial biomass N, Cmic/Corg ratio, Nmic/Ntotal ratio, Cmic/Nmic ratio

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A. M. EL-ghamry, HUANG Chang-yong, XU Jian-ming, XIE Zheng-miao. CHANGES IN SOIL BIOLOGICAL PROPERTIES WITH THE ADDITION OF METSULFURON-METHYL HERBICIDE[J]. Journal of Zhejiang University Science A, 2000, 1(4): 442-447.

author="A. M. EL-ghamry, HUANG Chang-yong, XU Jian-ming, XIE Zheng-miao",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%A A. M. EL-ghamry
%A HUANG Chang-yong
%A XU Jian-ming
%A XIE Zheng-miao
%J Journal of Zhejiang University SCIENCE A
%V 1
%N 4
%P 442-447
%@ 1869-1951
%D 2000
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2000.0442

A1 - A. M. EL-ghamry
A1 - HUANG Chang-yong
A1 - XU Jian-ming
A1 - XIE Zheng-miao
J0 - Journal of Zhejiang University Science A
VL - 1
IS - 4
SP - 442
EP - 447
%@ 1869-1951
Y1 - 2000
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2000.0442

An incubation study was conducted to investigate the effects of metsulfuron-methyl herbicide on the soil microbial biomass in loamy sand soil. The herbicide was applied to the soil at four concentrations: control, 0.01, 0.10, and 1.00 μg.g-1 soil. Determinations of microbial biomass-C and microbial biomass-N contents were carried out 1, 3, 5, 7, 10, 15, 25, and 45 days after herbicide application. In comparison to untreated soil, the microbial biomass-C and biomass-N decreased significantly in soils treated with herbicide at concentrations of 0.1 and 1.0 μg.g-1 soil within the first 7 days of incubation. The application of metsulfuron-methyl herbicide to the soil reduced the Cmic/Corg and Nmic/Ntotal percentages, which decreased with increasing application rate of metsulfuron-methyl herbicide. Compared to the untreated control, a marked increase in the microbial biomass C: N ratio was observed in the herbicide treated soil. This effect was transitory and was significant only at the higher rates of metsulfuron-methyl.

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