Author(s):

Bhagyashree Kesherwani and Tarence Thomas

Abstract: A field experiment was conducted to study the effect of direct application of different concentration of sewage sludge with different level of phosphorus on soil micronutrients under green gram (Vigna radiata L.) on a sandy loam soil during Kharif seasons of 2018 at the nursery of forestry, Department of Environmental Sciences & NRM in SHUATS, Prayagraj, (U. P.). Nineteen treatments were employed using three different areas STPs sewage sludge (SS) they are Naini STPs (A1), Rajapur STPs (A2) and Pritamnagar STPs (A3) of two different doses of SS (10 t/ha and 15 t/ha) with two-level of phosphorus (100% and 50%) to find the accumulation of micronutrient in soil depths. Experiment results showed a significant increase in the accumulation of micronutrient (Fe, Cu, Zn, and Mn) by 89.49%, 71.47, 85.42% and 57.57% respectively in treatment T2 as compared to control in soil (0-15 cm) depths. After application of phosphorus with SS, the accumulation of micronutrient highly increase as compared to direct use of SS. Cu and Zn increase in treatment T8, T12 and T16 in both soil depths as compared to treatment T2, T4 and T6. Naini STPs recorded low pH, which increase the solubility of macro-micro nutrient in the soil and phosphorus application increased the accumulation of Cu and Zn in soil depths which lead to improving soil nutrient status and also decreases the uptake of higher amount of nutrient to the plant parts which gives us growth and yield production to the crop.

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