2014-02-262014-02-261968.0http://krishikosh.egranth.ac.in/handle/1/2048592en-USzinc, inorganic acid salts, planting, yields, boron, maize, iron, poultry equipment, phosphate fertilizers, manganeseAnnual Progress Report of Coordinated Scheme of Micronutrients in Soils (1968-69)Book