Al-Diwani, Al-Mothanna. “The Effect of Adding Different Levels of Agricultural Sulfur and Fermented Sheep Residues on Readiness (N, P, K) in Soil and Their Concentration in Wheat Grains (Triticum Aestivum L.) (Variety- Sham 6)”. Wadi Alshatti University Journal of Pure and Applied Sciences (May 14, 2026): 97–107. Accessed July 12, 2026. https://waujpas.com/index.php/journal/article/view/436.