Abstract

laboratory experiment was carried out to study the effect of temperature (25, 35, and 45 °C) and incubation duration (15, 30, 45, 60, 90, and 120 days) with the addition of two sulfur sources (agricultural sulfur and sulfur associated with natural gas) at a level of 2000 mg S kg-1 in dissolved sulfur soil concentration in sandy loam and clay loam soils, with choosing the best temperature to be applied in the kinetic model of sulfur in soil. The temperature and incubation duration results indicated an increase in dissolved sulfur in the agricultural sulfur treatment in both study soils. Also, the 35 °C treatment gave the highest dissolved sulfur compared to the other temperatures, and the incubation period of 120 days recorded the highest amount of dissolved sulfur released. The dual interaction treatment of the sandy loam soil at a temperature of 35 °C and the fertilizer source (agricultural sulfur) gave the largest values of dissolved sulfur in the soil solution, which reached 12.60 mmol S L-1. While clay loam soil at a temperature of 35 °C gave agricultural sulfur the highest values, amounting to 30.68 mmol S L-1.

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