Respon Pertumbuhan Dan Produksi Tanaman Kedelai (Glycine Max L.) Terhadap Pem…

The study aimed to determine the growth and production response of soy-bean plants (Glycine max L.) to vermicompost and the use of biochar and their interactions in Ultisol soils. The study was conducted at the experimental garden of the Faculty of Agriculture, University Riau, Pekanbaru from July to September 2018. The study was conducted experimentally in factorial form using a fully randomiz…