Pengaruh Kombinasi Abu Janjang Kelapa Sawit Dengan Pupuk Urea Terhadap Pertum…

The purpose of this research is to know the effect of the combination of oil palm bunch ash with urea fertilizer on the growth of cocoa seedlings (Theobroma cacao L.) in peat soil and to know the best dose. This research was conducted in experimental station of Agricultural Faculty of University of Riau on December 2016 until March 2017. This research method used non factorial Complete Random D…