ALKHALIFA, khalaf Mahmoud; 						ALMOSULY, Mothafer A.; 						SAID, Mazin F..
 Effect of bio fertilization to increase efficiency of using chemical fertilizer to Corn crop (Zea mays L.) grown in gypsiferous soil..
<strong>Journal of Kerbala for Agricultural Sciences</strong>, [S.l.], v. 5, n. 5, p. 509-525, mar. 2018.
ISSN 2616-6933.
Available at: &lt;<a href="https://journals.uokerbala.edu.iq/index.php/Agriculture/article/view/576" target="_new">https://journals.uokerbala.edu.iq/index.php/Agriculture/article/view/576</a>&gt;. Date accessed: 24 nov. 2019.