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 ...
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acknowledge the importance of e-commerce to their countries and to survival of their businesses and in creating and encouraging an atmosphere for the wide adoption and success of e-commerce in the long term. the investment for implementing e-commerce in the public sector is one of the areas which is focused in government‘s action plan for cross-disciplinary it development and e-readiness in go...
Determination 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 کاملElectrodialysis of the Colloidal Soil Material and the Exchangeable Bases ,-
Recent investigations in the Bureau of Soils have shown that the colloidal material present in any soil contains 10 or more elements in widely varying proportions (19). Various attempts to fractionate the material into substances of more definite composition have not met with much success. However, dialysis of the material indicated that one colloid held about 1 per cent of its constituents les...
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ژورنال
عنوان ژورنال: Bulletin of the Agricultural Chemical Society of Japan
سال: 1928
ISSN: 1881-1272,0375-8397
DOI: 10.1271/bbb1924.4.41