Impact of Wastewater Irrigation on Nutrient Uptake and Soil Fertility in Soybean Cultivation

A field experiment conducted at college farm, SR University, Warangal. Telangana to study the effect of different quality of water on nutrient uptake and soil fertility variation in soybean. The experiment was laid out in rsandomized block design (RBD) and replicated six times with three treatments i.e. untreated wastewater, treated wastewater and fresh water. The result of the present study indicate that untreated wastewater affects Nitrogen, phosphorus, potassium and micronutrient uptake (Fe, Zn, Cu, B, and Mn) significantly and slight variation observed in soil pH and Electric conductivity, organic carbon, available nitrogen, phosphorus, potassium and micronutrients after harvest of soybean. Highest nitrogen, phosphorus and potassium uptake in soybean at harvest was observed in untreated wastewater (158.48, 32.55, and 74.85 kg ha⁻¹ in grain and 3612, 21.25 and 67.28 kg ha-1 in straw respectively) in relation to wastewater and freshwater. Higher value of micronutrient uptake was found in untreated wastewater. Highest value of soil pH, EC, organic carbon, available nitrogen, phosphorus, potassium and micronutrients after harvest of soybean was recorded in untreated wastewater treatment and lowest value in fresh water treatment. This study, it concluded untreated waste water was increase nutrient uptake (N. P. K. Fe. Zn. Cu. Mn. B) due to presence of enough amount of nutrient in untreated wastewater and made slight changes in soil physico-chemical and chemical properties.