“Interaction Between Micro Elements and Macro Elements With Manure on Barley Feed Yield and Soil Nutrient Content in Sistan Region”. International Journal of Manures and Fertilizers 3, no. 1 (August 29, 2014): 572–575. Accessed April 5, 2026. https://www.ijpp.org/journal/index.php/ijmf/article/view/121.