M. Anwar et al., INFLUENCE OF SOIL SODICITY ON GROWTH, OIL YIELD AND NUTRIENT ACCUMULATION IN VETIVER (VETIVERIA ZIZANIOIDES), Annals of Arid Zone, 35(1), 1996, pp. 49-52
Vetiver (Vetiveria zizanioides) was grown for 18 months in artificiall
y prepared sodic soils having pH from 8.0 to 11.0. Herb and oil yield
of vetiver were not significantly affected upto pH 9.5. Soil pH did no
t influence oil content. Accumulation of N and K did not decrease upto
pH 9.5, whereas, that of P declined beyond pH 9.0. Exchangeable sodiu
m decreased due to cropping in all the soils. Electrical conductivity
did not significantly change in soils having pH up to 9.0, above which
, it increased. Soil pH decreased by 0.5 to 1.4 units from the initial
value due to cropping.