نتایج جستجو برای: Chlorophyll chloroform fumigation-extraction (CFE)

تعداد نتایج: 194692  

2010
Noah Fierer

Basic Idea: The quantity of microbial biomass in a given soil sample is inherently difficult to measure. To some degree, any measurement of microbial biomass is relative – different methodologies or variations in methodologies will yield microbial biomass estimates that are not directly comparable. For this reason, if you want to measure microbial biomass – choose a method and stick with it exa...

ABSTRACT: Overall plant growth and microbial biomass can be effected by dust accumulation. The chloroform fumigation-extraction method was used to evaluating the effect of cement dust pollution emitted from Kurdistan cement factory on soil microbial biomass carbon. Chlorophyll content (a, b and total) of plants species was measured in different distance from cement factory. Mic...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1372

a simple, sensitive and selective method for solvent extraction and spectrophotemetric determination of lanthanum (ii) europium (iii), and cerium (iii) is described , the rare earth metals are extracted into chloroform solution of n-phenylbenzohydroxamic acid (pbha) at ph 9-10 various parameters are studied to optimize the extraction conditions. the molar absorptivity is found to increase from ...

2015
Lin Chen Jianming Xu Youzhi Feng Juntao Wang Yongjie Yu Philip C. Brookes

In soil microbiology, there is a "paradox" of soil organic carbon (SOC) mineralization, which is that even though chloroform fumigation destroys majority of the soil microbial biomass, SOC mineralization continues at the same rate as in the non-fumigated soil during the incubation period. Soil microeukaryotes as important SOC decomposers, however, their community-level responses to chloroform f...

1998
D. Harris R. P. Voroney

Harris, D., Voroney, R. P. and Paul, E. A. 1997. Measurement of microbial biomass N:C by chloroform fumigation-incubation. Can. J. Soil Sci. 77: 507–514. We present a calculation for soil microbial biomass N:C ratio determined from a 10-d incubation following chloroform fumigation. The calculation is based on a mathematical model of the N content of the preand post-fumigation soil microbial bio...

Journal: :European Journal of Soil Science 2023

Abstract Secondary and trace elements may be limiting soil microbial functioning, albeit demand content remain largely unknown methods for their in situ detection are limited. Thus, the objective of present study was to take first step towards method development assessment ionome, that is, elemental composition communities. Chloroform (CHCl 3 ) fumigation extraction used CHCl ‐labile secondary ...

2010
Jamil Haider Takuya Marumoto Abul Kalam Azad J. HAIDER T. MARUMOTO A. K AZAD

In order to estimate the microbial biomass content and to quantify the amount of available plant nutrients derived from microbial biornass in Bangladesh soils, biomass-C, -N, and available-N eoptents using samples from 8 soils were measured by applying the chloroform fumigation and drying-rewetting methods, respectively. 1)

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید