KHALIFA, Ahmed et al.
 Effect of micro sprinkler irrigation intervals on onion (Allium cepa L.) production compared to surface irrigation under Kassala conditions, Sudan.
<strong>Gezira Journal of Agricultural Science</strong>, [S.l.], v. 16, n. 2, dec. 2018.
ISSN 1728-9556. Available at: &lt;<a href="http://37.60.236.48/index.php/gjas/article/view/1254" target="_new">http://37.60.236.48/index.php/gjas/article/view/1254</a>&gt;. Date accessed: 03 june 2026.