Abstract:
A study was undertaken with the object of finding o u t t h e
retention of ammonium nitrogen in different soils of Kerala when
applied in the form of ammonium sulphate and leached after one
day or one week contact.
Eight soils differing in texture were taken and treated with
ammonium sulphate solution of three different concentrations, viz.,
52.50, 10500 and 21000 ,ug.N/lOO g. of soil under the laboratory
conditions. The unadsorbed nitrogen was found out by estimating
nitrogen in the supernatent liquid. The ammonium nitrogen retained
by the soil was estimated after leaching the soil with known volume of water. The statistical evaluation of the relation between
the textural separates and the ammonium nitrogen retained was
also made.
