Certainly calcareous soils rich in micronutrients many times...is there any other method to access the potential of that soil to make those nutrients available?
In calcariuus soil micronutrients like Fe,Mn,Cu,Zn generally deficient .So,chelated Fe,,Mn,Cu,Zn fertilizer with enriched organic fertilizers like vermicopost which contains all the essential plant nutrients along with beneficial microbial populations , hormones, enzymes, vitamins, antibiotics may improve availability of chelated micronutrients fertilizer.
Critical limits of micronutrients in soil for DTPA pH 7.3 extractable exchangeable iron 4.5, manganese 1,copper 0.2 ,zinc 0.6 mgkg-1 respectively in soil. So, microbial transformation of micronutrients from chelated and vermicopost amended calcareous soil may be slowly available to plant for ideal nutrtion of plant.