Conductivity of soil-water extract as an index of soil structure

1955 ◽  
Vol 6 (1) ◽  
pp. 84-91 ◽  
Author(s):  
J. S. Joffe ◽  
Jesse Elson
Keyword(s):  
Soil Water ◽  
Soil Structure ◽  
Water Extract ◽  
Soil Water Extract

Root Elongation Method for the Quality Assessment of Metal-Polluted Soils: Whole Soil or Soil-Water Extract?

2020 ◽  
Vol 20 (4) ◽  
pp. 2294-2303
Author(s):  
Eva V. Prudnikova ◽  
Alexander Neaman ◽  
Vera A. Terekhova ◽  
Mikhail M. Karpukhin ◽  
Evgenii L. Vorobeichik ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Soil Water ◽  
Root Elongation ◽  
Water Extract ◽  
Polluted Soils ◽  
Elongation Method ◽  
Soil Water Extract

The influence of soil water extract and thiamine on the growth of Cladophora glomerata

1975 ◽  
Vol 53 (6) ◽  
pp. 530-535 ◽  
Author(s):  
Laurence F. Moore ◽  
Duncan A. McLarty
Keyword(s):  
Soil Water ◽  
Water Extract ◽  
Optimum Concentration ◽  
Laurentian Great Lakes ◽  
Cladophora Glomerata ◽  
Active Components ◽  
Two Samples ◽  
Soil Water Extract ◽  
Labile Component ◽  
Synthetic Media

Soil water extract (SWE) has been used for decades to supplement certain algal and fungal cultures, but its active components remain essentially unknown. Cladophora glomerata, an attached green alga which has become a problem in several of the Laurentian Great Lakes and elsewhere, is one species that grows well on synthetic media supplemented with SWE. Unialgal cultures were used to investigate the nature of the active components in SWE with the hope that insight of the nutritional requirements of this alga would be gained.Analysis of SWE showed that an organic heat-labile component was significant, and when thiamine was substituted for SWE, it was found to provide 80% of the stimulation induced by SWE. The presence of thiamine in two samples of SWE was verified, and concentrations of 3 and 10 μg/litre were determined using the Phycomyces bioassay. Subsequent investigations of the requirement of thiamine by C. glomerata demonstrated that 1 μg/litre, provided either by SWE or as the pure vitamin, stimulated satisfactory growth, while 10 μg/litre is the apparent optimum concentration.

Determination of fluoride in soil water extract by ion chromatography with column-switching technique

2016 ◽  
Vol 34 (4) ◽  
pp. 442
Author(s):  
Xinhua JIANG ◽  
Chengzhu NI ◽  
Binhe ZHU ◽  
Xunyan ZHAO ◽  
Suqing CHEN ◽  
...  
Keyword(s):  
Soil Water ◽  
Ion Chromatography ◽  
Water Extract ◽  
Column Switching ◽  
Soil Water Extract

Analysis of the 1:5 soil: water extract in burnt soils to evaluate fire severity

CATENA ◽  
2008 ◽  
Vol 74 (3) ◽  
pp. 246-255 ◽  
Author(s):  
J. Notario del Pino ◽  
I. Dorta Almenar ◽  
A. Rodríguez Rodríguez ◽  
C. Arbelo Rodríguez ◽  
F.J. Navarro Rivero ◽  
...  
Keyword(s):  
Soil Water ◽  
Fire Severity ◽  
Water Extract ◽  
Soil Water Extract

Simplified Evaluation of Salt Affected Soils Using 1:5 Soil–Water Extract

2021 ◽  
pp. 1-17
Author(s):  
Tsuneyoshi Endo ◽  
Mubarak Abdelrahman Abdalla ◽  
Abdel Karim Hassan Awad Elkarim ◽  
Mayu Toyoda ◽  
Sadahiro Yamamoto ◽  
...  
Keyword(s):  
Soil Water ◽  
Water Extract ◽  
Soil Water Extract ◽  
Salt Affected Soils

Soil Structure, Soil Water and Drought

2011 ◽  
pp. 69-75
Author(s):  
Igori Arcadie Krupenikov ◽  
Boris P. Boincean ◽  
David Dent
Keyword(s):  
Soil Water ◽  
Soil Structure

The influence of soil structure and stress history on the soil–water characteristics of a compacted till

Géotechnique ◽  
1999 ◽  
Vol 49 (2) ◽  
pp. 143-159 ◽  
Author(s):  
S. K. Vanapalli ◽  
D. G. Fredlund ◽  
D. E. Pufahl
Keyword(s):  
Soil Water ◽  
Soil Structure ◽  
Stress History ◽  
Water Characteristics
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