Saloom, Mohammed Obaid. 2016. “EFFECT OF APPLICATION METHODS OF THE HUMIC ACID AND PHOSPHORUS LEVELS AND SOME GROWTH PROPERTIES AND YIELD OF BARLEY (Hordeum Vulgare L) . ”. Diyala Agricultural Sciences Journal 8 (1):92-104. https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/1330.