Growth Growth Response of Several Varieties of Oil Palm Sprouts (Elaeis guineensis Jacq.) Towards Application of Biological Fertilizer in Pre-Nursery

Abstract

This research was conducted at the Faculty of Agriculture, University of North Sumatra, Medan from September 23, 2021 to December 14, 2021. The study used a factorial completely randomized design, the first factor being the DxP Yangambi varieties, the DxP Simalungun varieties, and the DxP Dumpy varieties and the second factor being the application of biological fertilizers consisting of: 0 g/l water, 2.5 g/l, 5 g/l water, 7.5 g/l water. The results showed that the PPKS DxP Dumpy varieties significantly increased plant height at 8, 10, and 11 weeks of age of oil palm (Elaeis guineensis Jacq.) seedlings in pre-nursery. The application of biofertilizers did not significantly increase the growth of oil palm (Elaeis guineensis Jacq.) seedlings in the pre-nursery. The interaction of biological fertilizer application with varieties significantly increased plant height from 7-12 weeks of age on oil palm (Elaeis guineensis Jacq.) seedlings in pre-nursery.