PENGARUH PEMBERIAN PUPUK AN ORGANIK TERHADAP PERTUMBUHAN BEBERAPA VARIETAS PADI (Oryza sativa L.) DIBAWAH TEGAKAN KELAPA SAWIT (Elaeis quineensis Jacq) UMUR 8 TAHUN

Abstract

This study aims to determine the effect of inorganic fertilizer on the growth of several rice varieties (Oryza sativa L.) Under oil palm stands (Elaeis quineensis Jacq) aged 8 years. This research was carried out in the center of palm oil research (PPKS) aek pancur garden tanjung morawa district deli serdang district with altitude of ± 30 m above sea level. The execution time of the research was carried out on Tuesday, August 2018 until it was finished. This study uses Factorial Split Plot Design (RPT) consisting of two factors studied, namely: Chemical Fertilizer Factor (D) divided into D1 = 2.75 g / barrel, D2 = 5.5 g / barrel, D3 = 8, 26 g / barrel and D4 = 11 g / barrel while the Variety factor is divided into 4 levels, V1 = Ramos, V2 = Inpara 2, V3 = Inpari 4 and V4 = Ciherang. There were 12 combinations of treatments repeated 3 times resulting in 48 experimental plots, distance between plots 100 cm, length of the research plot 100 cm, width of the research plot 50 cm, number of plants per plot 5 plants, number of sample plants per plot 5 plants, total number of sample plants 240 plants. The results showed that chemical fertilizer and the use of several varieties did not have a significantly different effect on all observational parameters.