Pengaruh Pemberian Limbah Padat Pabrik Kelapa Sawit (Solid) dan Pupuk Hayati Bioneensis terhadap C-Organik, P-Tersedia, Suhu Tanah dan Produksi Sawi pada Tanah Ultisol

Abstract

This study aims to determine the effect of applying palm oil mill solid waste (solid) and Bioneensis biofertilizer on C-organic, P-Available, soil temperature and mustard (Brassica juncea L.) production on Ultisol soil. This research was conducted in the Greenhouse and Research and Technology Laboratory of the Faculty of Agriculture, University of North Sumatra from May to September 2023. This study used a Randomized Group Design (RAK) with 2 treatment factors and 3 replications. The first factor is palm oil mill solid waste (solid) of 4 treatment levels, namely: (S0) Control without palm oil mill solid waste (solid), (S1) palm oil mill solid waste (solid) 15 tons/ha, (S2) palm oil mill solid waste (solid) 30 tons/ha, (S3) palm oil mill solid waste (solid) 45 tons/ha. The second factor is Bioneensis biofertilizer (B) with 3 levels, namely: (B0) control without Bioneensis biofertilizer, (B1) 4 tons/ha, and (B2) 8 tons/ha. The parameters observed were soil C-organic, soil P-available, soil temperature, number of leaves and mustard weight. The results showed that the application of palm oil mill solid waste (solid) significantly increased soil C-organic, soil P-available, number of leaves and mustard weight. The application of Bioneensis biofertilizer significantly increased soil C-organic, soil P-Persistent and the number of mustard leaves. The interaction between the two significantly increased soil P- Available.