In India, zinc (Zn) deficiency was first reported in rice by Nene; it is now wide- spread all over the country. The latest report indicates that 49% of Indian soils are deficient in Zn. But good responses of several field and fruit crops to Zn fertilization have been reported from different parts of the country.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/zinc-oxideneem-oil-conditioning-improving-quality-micronutrient-fertilizer-zinc
[2] http://admin.indiaenvironmentportal.org.in/category/author/rajendra-prasad
[3] http://admin.indiaenvironmentportal.org.in/category/author/i-k-suri
[4] http://admin.indiaenvironmentportal.org.in/category/author/y-s-shivay
[5] http://admin.indiaenvironmentportal.org.in/category/journal/current-science
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/neem
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agricultural-inputs
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/soil-capability