Barley and corn seedling were used to investigate the influence ofzeolite and phosphogypsum on a) growth, photochemical activity ofchloroplasts and chlorophyll content; b) content of water soluble Sr,Ca and Cd in the soil, and c) uptake of these elements in relation tophotosynthetic activity, and content of these elements in the soil.Phosphogypsum was found to negatively influence the growth anddevelopment of the seedlings, affecting their morphological traits,biomass production and photosynthetic activity. Therefore,application of phosphogypsum combined with natural zeolite enabled acomplete removal of the "side effects" of phosphogypsum treatment.Furthermore, the application of zeolite was found to increasephotosynthetic activity and biological yields of barley and cornplants. The results of our investigation showed the absence of closecorrelation between the content of water soluble Sr in the soil andits accumulation in plants. however, the uptake of Sr by barleyplants was found to be highly dependent on their photosyntheticactivity and leaf area.
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