Kajian Faktor Agroekologi Untuk Peramalan Produksi Kelapa Sawit (Elaeis guineensis Jacq.) di Sei Air Hitam Estate, PT. Perdana Inti Sawit Perkasa, Kab. Rokan Hulu, Riau.

Abstract

The internship was conducted at Sei Air Hitam Estate, Rokan Hulu, Riau, from February 13th to May 13th 2012. The objective of this assignment was to determine agronomic and agroecological characters responsible to estimate oil palm production. The assignment composed of several works, i.e., as field worker for three weeks, as assistant foreman for three weeks, and as estate assistant companion for six weeks. Specific topic studied was evaluation of the agronomic and agroecological characters which were affected oil palm production. Result of t-parcial test indicated that there were seven variables affected oil palm production at α= 1% and α= 5% i.e., plant ages, fertilizer application, air humidity, wind speed, number of rainy day, rainfall, and water deficit. Result of Multiple regression analysis showed that there were six model comparison which able to be used to estimate oil palm production in Sumatera.