Effect of treated sewage water irrigation on soil nutrient status of mulberry garden

A field experiment was conducted in V1 mulberry garden established under paired row system to study the influence of raw and treated sewage water irrigation on nutrient availability and heavy metal status of soil. Experimental soil was collected and tested for its physio-chemical properties whereas, the raw and treated sewage water were collected from GKVK sewage treatment plant and analyzed for its chemical properties. Data recorded on chemical analysis of water revealed that sewage water contains higher concentrations of total N, PO4, K, Na, Fe, Mn, Zn, Cu, Ni, sulphates compared to borewell water whereas, Ca and Mg were found higher in borewell water. Similarly, soil pH, EC, OC, N, P, K, Fe, Mn, Zn were significantly higher in 100% raw sewage water irrigated plot. An overview of the study revealed that raw sewage water irrigated plot significantly improved the fertility status of the mulberry soil.