The effect of the short-term application of municipal sewage sludge on some of the macronutrients, heavy metals and the physiochemical characteristics of soil under lettuce cultivation

Alinejadian Bidabadi, Afsaneh and Sohrabi, Nastaran and Feizian, Mohammad and Maleki, Abbas (2019) The effect of the short-term application of municipal sewage sludge on some of the macronutrients, heavy metals and the physiochemical characteristics of soil under lettuce cultivation. ACTA AGRONOMICA ÓVÁRIENSIS, 60 (2). pp. 30-51. ISSN 1416-647X

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Abstract

Sewage sludge (SS) is a rich source of organic matters and nutrients and can use as a fertilizer in farms. The purpose of this research is to study the effect of short-term of municipal sewage sludge on some of the physical and chemical characteristics of a soil. This research conducted in greenhouse conditions in Iran with a randomized complete block design with five treatments including control, 25, 50, 75 and 100 t/ha across four replication. According to the results, adding sewage sludge to soil increased the concentration of macronutrients, heavy metals, organic carbon content, electrical conductivity, porosity and mean weight diameter and decreased pH, bulk density, particle density, significantly. The highest amount of N, P, and K (0.1%, 213.5 and 10.85 mg/kg, respectively) and Pb and Cd (5.17 and 2.42 mg/kg, respectively) and some of the physicochemical characteristics of soil reported in the treatment of 100 t/ha.

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