Effects of Organic Amendment on Heavy Metal and Macronutrient Contents in Paddy Soil

The enormous use of chemical fertilizers recently has contributed to negative impacts on soil quality for agriculture purposes. However, if we the fertilizer along with organic amendment, it would offer a good approach sustainable practice. Therefore, this study examined effects HT Organic Compound (HTOC) application heavy metal and macronutrient content in 2-season cultivated paddy field from 2016 2017. sampling period was carried out after harvest included three treatments: Chemical or NPK (CF), 250 kg amendment (CF+HTOC250), 500 (CF+HTOC500). Several parameters were analyzed such as matter content, pH, available P, K, total N, some metals like As, Cd, Cr, Cu, Pb, Zn. results showed that treated (CF+HTOC treatment) significantly higher N than treatment (CF). In long-term application, soils HTOC tended have lower Cu Pb concentrations compared As whole, concluded could be an alternative method improving area.