Dawood, S. S. (2011). EFFECT OF DIFFERENT TILLAGE SYSTEMS ON SOME SOIL PHYSICAL PROPERTIES AND THEIR INFLUENCE ON GROWTH AND YIELD OF WHEAT (Triticum aestivum L) . Diyala Agricultural Sciences Journal , 3(2), 357–363. Retrieved from https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/3033