PJB-2019-870
INFLUENCE OF CHEMICAL FERTILIZERS AND SOIL AMENDMENTS ON MINERAL PROFILE OF WHEAT
Kafeel Ahmad
Abstract
A field experiment was conducted in Jhang, Punjab, Pakistan by using complete randomized block design with three replicates per treatment to observe the impact of organic and inorganic fertilizers on uptake of heavy metals by wheat variety (Lasani-08). Growth parameters of plants were determined. The concentration of heavy metals in different parts of wheat plants was also analyzed by using Atomic Absorption Spectrophotometer (AAS). Results indicated that morphological parameters such as root length, shoot length, leaf length, leaf width showed significant effect while leaf area showed non-significant effects. The concentrations of heavy metals (mg/kg) in grains of wheat ranged from Zn (12.95-25.83), Co (1.03-1.11), Fe (16.83-20.26), Cd (0.92-0.98), Pb (0.504-1.997), Cu (2.24-5.98) and Cr (0.493-1.154) respectively. Fe was found to show more value for bioconcentration factor and daily intake of metals 0.944 and 0.0091 respectively at T-4. The highest value of pollution load index was found for Pb (2.69) at T-4. The cadmium showed highest values for health risk index (0.441) and transfer factor (0.989) at T-2. Current values of Co, Zn, Cu, Fe and Cr were within the permissible limits and values of Pb and Cd were higher than permissible limits which showed adverse effects on plant growth, yield and health of living organisms using crop as their food source.
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