Abstract

A pot experiment was conducted in two red soils collected from Tindivanam and Pollachi with groundunt (Arachis hypogaen L.) with three levels of calcium namely 0. 75 and 150 kg Cafha applied in two forms viz., calcium carbonate and sulphate in com- binations with two levels of each of phosphorus. potassium and magnesium and cons. tant dosages of nitrogen and boron. After the harvest of the crop groundnut kernel and shell were analysed for nitrogen, phosphorus, potassium and magnesium. Nitrogen uptake by kernel was markedly increased by calcium application. In both soils addition of calcium has increased the absorption of phosphorus and potassium in kernel. Man- nesium uptake by kernel was favoured by calcium application especially at the higher level viz., 150 kg Ca/ha.

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