Agri PDF

Mineral nutrition What is minerals? naturally occurring inorganic solid that has a definite chemical composition, and an ordered internal structure. What is nutrition? Nutrition is a process of taking food and using it growth ,repair , reproduction and maintenance of body. The word nutrient come from the Latin word which means feed Essential of mineral elements Most of the mineral present in soil can enter through the root. Some plant species accumulate selenium some other gold. While some plants growing near nuclear test site take up radioactive strontium. Criteria for essentiality. element must be absolute necessary for supporting normal growth and reproduction, absence of element the plant do not complete their life cycle or falls seeds. requirement of element must be specific and not replaceable by another element. Deficiency of  any element cannot be met by supplying some other element. Element must be directly involved in metabolism of plant. the element are further divided i...