منابع مشابه
Exchangeable Aluminum Evaluation in Acid Soils
One of the main factors limiting agricultural production in tropical climate regions is mainly related to the presence of exchangeable aluminum (Al) in highly weathered acid soils. Four methods of Al determination extracted with neutral 1 mol L KCl solution were evaluated: three colorimetric methods (aluminon plus ascorbic acid, and eriochrome cyanine R by FIA) and the usual titrimetric method ...
متن کاملTotal body water and the exchangeable hydrogen. I. Theoretical calculation of nonaqueous exchangeable hydrogen in man.
A theoretical calculation of the total nonaqueous exchangeable hydrogen in protein, carbohydrates, and fat in man has been made. It shows that of the total exchangeable hydrogen in the body 5.22% is located in biochemical components, soluble in body water, containing hydrogen that is exchangeable with the isotope. This value represents a maximum upward distortion of total body water measurement...
متن کاملDetermination of exchangeable inorganic nitrogen species in wetland soils.
Thredbo Vi l lage, an Austral ian Alpine resort , discharges secondary treated sewage e f f luen t through an adjacent wetland area to trap suspended and dissolved material before water is discharged into the Crackenback r i ve r (Brodrick 1985). We are current ly evaluating the effect iveness of th is wetland in removing nitrogen species from the sewage e f f luen t by d e n i t r i f i cation...
متن کاملFirst report on Fusarium virguliforme in Persian Gulf Beach soils
Fusarium species are cosmopolitan species that frequently isolated from soils and plantdebris and can seriously damaged plant, animal and human. Persian Gulf beaches in Iranare the ideal habitat for a variety of Fusarium species. Therefore, the study is conductedto gather some information on the population of Fusarium species which could be foundin Persian Gulf beaches in Iran. The study involv...
متن کاملPotentiometric multi-syringe flow of exchangeable potassium in soils with in-line extraction
A multi-syringe flow injection system for the potentiometric determination of exchangeable potassium in soil samples is proposed. Firstly, a manifold was devised to allow determination in soil extracts prepared off-line. It was possible to analyze samples prepared in extractants with different composition (Mehlich or Morgan) without physical or chemical modification of the manifold. A linear dy...
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ژورنال
عنوان ژورنال: Journal of AOAC INTERNATIONAL
سال: 1954
ISSN: 0095-9111
DOI: 10.1093/jaoac/37.2.270