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Desorption of potassium from five soils of North India using electro‐ultrafiltration
Author(s) -
BRAR M. S.,
SEKHON G. S.
Publication year - 1986
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1986.tb00373.x
Subject(s) - soil water , potassium , ultrafiltration (renal) , ammonium acetate , nitric acid , desorption , chemistry , extraction (chemistry) , boiling , ammonium , soil series , environmental chemistry , soil test , soil texture , soil classification , environmental science , inorganic chemistry , soil science , chromatography , adsorption , high performance liquid chromatography , organic chemistry
SUMMARY Samples were collected from five soil series, developed on different parent materials and occurring widely in intensively cultivated areas of Northern India. Potassium in these soils was desorbed by electro‐ultrafiltration, and collected in different fractions by applying successively higher voltages and temperature. K was also determined by extraction with M neutral ammonium acetate and M boiling nitric acid. Potassium desorption using EUF differentiated between soil series and between low K and high K soils. The K‐buffering capacity of the soil was associated with soil texture.