Efisiensi penggunaan pupuk majemuk NPK dengan penambahan POC pada bibit kelapa sawit (Elaeis guineensis Jacq.) di pembibitan utama

Abstract

Oil palm is one of the plantation commodities that has an important role in activities in Indonesia. The purpose of this study was to study the combination and efficiency of NPK fertilizer added with liquid organic fertilizer from banana weevil mole to oil palm seedlings. The research was carried out in smallholder estate of Keramasan Karyajaya Village, Kertapati Sub district of South Sumatra from May 2019 to December 2019. The experimental design used was a Randomized Block Design, 5 arrangements with 4 replications and each processing unit consisted of 5 plant samples. The treatments are (P): P0 = 334 g of NPK-1 seedlings (15-15-15) + without liquid organic fertilizer; P1 = 334 g NPK seed-1 (15-15-15) + 800 ml seed-1; P2 = 334 g NPK seed-1 (15-15-15) + 1600 ml seed-1; P3 = 167 g NPK seed-1 (15-15-15) + 800 ml seed-1; P4 = 167 g NPK seed-1 (15-15-15) + 1600 ml seed-1. The oil palm seedlings used in the PPKS 718 variety (DxP) are opened in 3-4 months which are normal and uniformly selected from the pre-nursery. The observed variables were plant seedling height (cm), number of leaves (strands), stem diameter (mm), chlorophyll content (mg cm-2) at 3-8 BSP using SPAD-502 plus chlorophyll meters, indicating abnormal seedlings. Data obtained were tested using analysis of variance, and 5% discussion. Provision of NPK compound fertilizer added with liquid organic fertilizer from mole weevil mole does not affect the parameters of plant height, number of leaves and stem diameter, but it is significantly affected by the level of greenness of the leaves. Giving NPK compound fertilizer with a dose of 167 g seeds-1 plus liquid organic fertilizer from mole weevil banana 800 ml seed-1 dose gives better results seen from the parameters of plant height, number of leaves, stem diameter and the level of greenness of leaves 2 months at a time ( BSP).