Transactions of the INDIAN CERAMIC SOCIETY Vol. 44 1985
Leaching Behaviour of a Blast Furnace Slag Based Soil
Conditioner and Liming Material
s. N. MISRA, N. SHARMA, A. N. VTRKAR, H. s. RAY*
AND A. PAUL
Pages : 109-111
DOI : 10.1080/0371750X.1985.10822755
Abstract
The paper deals with the potential use of an indigenous blast furnace
slag as an useful raw material for development of controlled
release fertilizers as well as moderately effective liming materials.
The basic composition of the blast furnace slag was changed by
melting the slag with compounds of phosphorus and potassium in
different proportions. It is presumed that such controlled release of
phosphorus, potassium and calcium should meet the plant requirements
more effectively and with less wastage. The slag base itself
should have no harmful effects because of similarity of its constituents
with those of the soil.
Leaching studies on the rate of release of phosphorus and potassium
were carried out using modified slag samples of fixed compositions
and average particle size (220 f
