Efektivitas Pemberian Pupuk Organik Cair dari Limbah Cair Kelapa Sawit Terhadap Pertumbuhan Bibit Durian (Durio zibethinus Murr)

Abstract

This study aims to influence the palm oil liquid waste on the growth of durian seedlings. This research was conducted in the Experimental Garden, Faculty of Agriculture, University of Medan Area, Jalan Kolam No. 1 Medan Estate, Percut Sei Tuan Sub district with a height of 12 m above sea level, flat topography and alluvial soil types, starting from February to April 2018. The design used in this study was a Non Factorial Randomized Block Design (RBD), with the effectiveness factor treatment of palm oil waste (L notation) consisting of 6 levels of treatment, namely: L0 = water + standard fertilizer; L1 = water + palm oil liquid waste as much as 20 ml / polybag; L2 = water + palm oil liquid waste as much as 30 ml / polybag; L3 = water + palm oil liquid waste as much as 40 ml / polybag; L4 = water + palm oil liquid waste as much as 50 ml / polybag; and L5 = water + palm oil liquid waste as much as 60 ml / polybag. This study was conducted in 4 replications. The parameters observed in this study were plant height, stem diameter, number of leaves and leaf area. The results obtained from this study are: 1) Provision of Liquid Organic Fertilizer from palm oil liquid waste as a mixture of planting media is very effective to support the growth and development of durian seedlings, and 2) Provision of Liquid Organic Fertilizer from palm oil liquid waste with a concentration of 60 ml / polybag was able to increase the growth and development of durian seedlings.