IDENTIFIKASI DAN UJI EFEKTIVITAS HERBISIDA RUSO PADA GULMA DI LAHAN TANAMAN KELAPA SAWIT
Riama Rita Manullang dan Rista Abri Kristiyani*
Due to losses caused by weeds it is necessary to control measures. Many steps are performed in the control or management of weeds such as preventive means mechanical, technical culture, biology, chemistry and integrated manner. From some of the techniques of control over chemical control using herbicides most widely used for this method is considered more practical and profitable compared with other methods. Of the many types of herbicides that are traded in farm shops one of which is the 485 SL herbicide Ruso. These herbicides based on the way it works is a systemic herbicide to control weeds effectively narrow-leaved and broad-leaved weeds in oil palm plantations.This study aims to determine the types of weeds on crop lands of palm and obtain Ruso effective dose of herbicide to control the weeds types. The study was conducted over three months includes comprehensive measurement gardens, identifying weeds, herbicide spraying Ruso and observations. The study was conducted in a pilot plantation of oil palm trees Tree Crop Cultivation Study Program Polytechnic State Agricultural Samarinda.The results of the study identify weeds are Axonopus compressus, Ageratum conyzoides, Asystania ganggetica (L), Chromolaena odorata, Clidemia hirta (L), Colocasia sp, Cyperus rotundus, Davallia denticulata, Eleisune indica, Lantana camara, Melastoma malabratichum, Mikania micrantha, Nheprolepis biserata and Stenochlaena palustris. While efektiktivitas herbicide Ruso is best to treat 3 (R3) at a dose of 15 ml / l There are three types of weeds that live and 11 species of weeds are dead, followed by treatment with 2 (R2) at a dose of 10 ml / l of water, there are 4 types of weeds live and 10 dead weeds and treatment 1 (R1) there are 5 types of weeds that live and 9 types of weeds are dead. Keywords: Weed, Identification, Herbicides.