Soil Chemical Properties, Distribution of Zinc Fractions and Zn Uptake by Rice as Influenced by Long Term Application of Inorganic Fertilizers and Organic Manures: A Review

Zinc (Zn) deficiency is one of the important abiotic factors limiting rice productivity worldwide and is also a widespread nutritional disorder affecting human health. Zinc deficiency greatly influences and changes the soil physico-chemical properties over long application of inorganic fertilizers and organic manures on different type of agricultural soils. Given that rice is a staple for populations in many countries, studies of Zn dynamics and management in rice are of great importance in different agroclimatic regions of agricultural soils. In this context, the continuous application of chemical fertilizers and organics has widely affected the zinc dynamics, nutrient content and their uptake by rice crop.