Efektivitas Herbisida IPA Glifosat 486 SL untuk Pengendalian Gulma pada Budidaya Tanaman Karet (Hevea brasiliensis Muel. Arg.) Belum Menghasilkan

Abstract

The research was conducted in the plantation PTPN VIII Cikumpay Purwakarta, West Java, from September 2012 until December 2012. This reaserch was conducted to test the effectiveness of the herbicide glyphosate IPA 486 SL. The experimental design used in this research were randomized design Complete Group (RKLT) with one factor. This research use seven treatments with four replications. Treatment doses of glyphosate IPA 486 SL given is 1.0 l ha-1 (P1), 1.5 l ha-1 (P2), 2.0 l ha-1 (P3), 2.5 l ha-1 (P4), 3.0 l ha-1 (P5), Weeding Manual (P6), and Control (P7). Herbicide glyphosate IPA 486 SL was not effective in suppressing the growth of weeds in immature rubber plantations.. Calculation the average herbicide treatments at any dose did not show significant differences, although in general there is a decrease in weed dry weight each observation. During observations did not symptoms of poisoning in the rubber plant for each treatment dose. It shows that the application of glyphosate IPA 486 SL herbicide is not dangerous to immature rubber plants