Pengaruh Pupuk Organik Dan Anorganik Terhadap Pertumbuhan Dan Produksi Tanama…

ABSTRACT This study aims to determine the single factor of petroganic organic fertiliser, the single factor of NPK phonska fertiliser and the interaction of petroganic organic fertiliser with NPK phonska and get the best dose. The research was conducted at the Faculty of Agriculture, Riau University for three months starting from January to March 2022. The first factor was the dose of petrogan…