W.Y. Chew and K. T. Joseph

Abstract

An investigation,in bags, to cornpare the rclative effects of dolomite, limestone and hydrated lime on the growth and availability of nutrients to Napier grass and sorghum grown on peat soil was conducted in 1973. Comparison of the control with lime treatments showed that dry mattel and plant uptake of N. P. K. Ca and Mg were greatly improved by liming as a result of reduced soil acidity.The contents of N, P and K, however, was reduced by liming due to a dilution effect; the Ca content was increased by all three types of lime but improvement in the level of Mg was only observed in the case of dolomite . Comparison of the three types of lime showed no difference in their effects on the contents or uptake of N. P and K. The Ca content and uptake, however, improved with increasing Ca content of the three lime amendments;the content and uptake of Mg was greater for dolomite than for the other two lime types.

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