Abstract:
Laboratory studies and Neubauer's tests using wheat were corduc'ed to
to study the effect of liming in tsteritic soil and deliming by the application of
sulphur in medium black calcareous soil on the exchangeable manganese in the
soils, dry matter production and uptake of Mn by the plants. Application to
increasing quantities of CaCO. in fsteritic soil resulted in a progressive decreasef
in exchangeable Mn with a corresponding increase in pH, the relation being
somewhat linear. Combined application of lime and phosphate brought about an
increase in exchangeable Mn. The results of Neubauer's lest showed a significant
reduction in dry-matter production with decrease in uptake of Mn by wheat. The
combined application of lime and phosphate has resulted in a significant increase
in the uptake of Mn. Treatment with graded doses ofsjlphurin calcareous soil
resulted in increasing the exchangeable Mn with corresponding depression of
pH values. In general sulphur application has not effected the dry-matter production
by wheat plants. There is a progressive increase in the uptake of Mn by
plants grown in sulphur treated soils.
