“…), liming at high rates is likely to induce some micronutrient deficiencies, although at the present time it is rather general knowledge that little lime, if any, is needed in most tropical areas for acid-toler-Pennisetum typhoides ) but not tomato plants in an Entisol from Costa Rica when limed at 5 and 10 ton CaCOyha. Reduction in yield was not due to induced Fe deficiency nor were Zn and Cu concentrations in plants below critical levels.Similar results were obtained byJuo and Ballaux (1977) in an Ultisol from Nigeria.Heavy P applications over several years may also significantly reduce levels of available Zn, Cu, and Mn in the soil (Badanur and duced. Similar results in plants were reported by Wallace et al…”