Pemberian Beberapa Dosis Kompos Kulit Kopi Terhadap Pertumbuhan Bibit Karet (…

This research aims to get the best dosage of coffee rind compost to increase the growth of rubber seedling. This research has been conducted at Experimental Garden of Agriculture Faculty of University of Riau, kampus of Bina Widya km 12,5 Simpang Baru, Tampan, Pekanbaru from March to July 2017. This research was conducted experimentally using factorial randomized design, consisted of 5 treatmen…