Soil pH Dynamics in a Calcareous Soil as Influenced by Organic and Sulfur Amendments under Different Irrigation Water Qualities
Keywords:
Sheep manure compost, Elemental sulfur, Irrigation water quality, Soil pH, Calcareous soil, MaizeAbstract
This study investigated the effects of sheep manure compost, elemental sulfur, and irrigation water quality on soil pH under maize (Zea mays L.) cultivation. A pot experiment was conducted under greenhouse conditions at Al-Fataih area, north of Derna City, Libya. Sheep manure compost was applied at rates of 0, 3, 6, 9, and 12% (w/w), while elemental sulfur was applied at rates of 0, 1, 2, 3, and 4% (w/w). Two irrigation water qualities (tap water and drainage water) were used. Results showed that irrigation with drainage water significantly increased soil pH, whereas compost and sulfur applications significantly reduced soil pH. The interaction between compost and sulfur was highly significant, while the three-way interaction was not significant. These findings confirm the effectiveness of organic and sulfur amendments in mitigating alkalinity in calcareous soils.
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