2023
DOI: 10.15244/pjoes/157548
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Effects of Reduced Fertilization Combined with Titanium Gypsum on Soil Arsenic and Cadmium and Water Spinach (<i>Ipomoea aquatica</i> Forsk) Growth

Abstract: Many industrial by-products have been used to fix heavy metals in contaminated soil. In this study, three amendments (titanium gypsum (TG) and two simulated titanium gypsum (STG1; STG2) were used to immobilize arsenic (As) and cadmium (Cd) in soil and reduce their concentration in water spinach. Three fertilization regimes (local conventional fertilization (CK), 30% reduced fertilization (CJ) and 30% nitrogen reduction slow-release fertilizer (WH)) were employed to verify the feasibility of reduced fertilizati… Show more

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