Effect of humic acid and silicon on some growth characteristics of maize (Zea mays l.)
By: Hasan, Haydar; Hudhayli, Kazim Hasan; Muhsin, Karim Hannun. Basrah Journal of Agrricultural Science. Vol. 32, no. 2 (2019), pp.23-32, 10 p.
Subjects: Corn; Humic acid