Effect of inorganic fertilizer and HA on the growth and yield of kangkong
Influence of inorganic fertilizer on the growth and yield of Ipomoea reptans Poir. and their combined effect with humic acid JOHN ONEIL M. ALCOBILLA, NADINE T. BAUTISTA, JAY VANERI T. PORRAS, and JULNAFE B. LIBO-ON Philippine Science High School Western…