Pengendalian Gulma Dengan Saflufenacil Secara Tunggal dan Campuran pada Pertan

Weed Control With Saflufenacil Singly and Mixture in Immature Oil Palm on Peat Land

Abstract

The of a weed of immature oil palm on peat area is generally dominated by ferns as Stenochlaena palustris and Biserrata nephrolepis. Herbicide used to control ferns on peat is such limited. This research aimed to evaluate the bioefficacy of saflufenacil alone and combination with other herbicide ( glifosat, glufosinat, paraquat, metsulfuron methyl ) on peat land. This research is used randomized complete block design non factorial with there were 10 different herbicide treatment including paraquat (1500 g a.i.ha-1), glufosinat (3500 g a.i.ha-1), glifosat ( 1500 g a.i.ha-1), saflufenacil (75 g a.i.ha-1), saflufenacil (60 g a.i.ha-1) + paraquat (1500 g a.i.ha-1), saflufenacil (75 g a.i.ha-1) + glifosat (1500 g a.i.ha-1), saflufenacil (75 g a.i.ha-1) + glufosinat (1500 g a.i.ha-1), saflufenacil (75 g a.i.ha-1) + metil metsufuron (75 g a.i.ha-1), saflufenacil (75 g a.i.ha-1) + ( paraquat 1500 g a.i.ha-1) and without control. The highest percentage (88,1%) of weed control visually is caused by saflufenacil 75 g a.i.ha-1 + paraquat 1500 g a.i.ha-1 whereas the lowest (50,1%) is due to saflufenacil 75 g a.i.ha-1. Similarly the highest mortality of Stenochlaena palustris (86,94%) is caused by saflufenacil 75 g a.i.ha-1 + paraquat 1500 g a.i.ha-1. The highest mortality of Nephrolepis biserrata (74,07%) is due to saflufenacil 75 g a.i.ha-1 + metil metsulfuron 75 g a.i.ha-1.

Jenis gulma pada pertanaman kelapa sawit di lahan gambut yang belum menghasilkan umumnya didominasi gulma pakisan seperti Stenochlaena palustris dan Nephrolepis biserrata. Herbisida yang digunakan untuk mengendalikan gulma pakisan pada lahan gambut sangat terbatas. Penelitian ini bertujuan untuk menguji efektifitas aplikasi saflufenacil secara tunggal maupun kombinasi dengan herbisida lain (glifosat, glufosinat, paraquat, metil metsulfuron) pada lahan gambut. Penelitian ini menggunakan Rancangan Acak Kelompok Non Faktorial dengan 10 perlakuan herbisida yaitu paraquat (1500 g.b.a/ha), glufosinat (3500 g.b.a/ha), glifosat ( 1500 g.b.a/ha), saflufenacil (75 g.b.a/ha), saflufenacil (60 g.b.a/ha) + paraquat (1500 g.b.a/ha), saflufenacil (75 g.b.a/ha) + glifosat (1500 g.b.a/ha), saflufenacil (75 g.b.a/ha) + glufosinat (1500 g.b.a/ha), saflufenacil (75 g.b.a/ha) + metil metsufuron (75 g.b.a/ha), saflufenacil (75 g.b.a/ha) + ( paraquat 1500 g.b.a/ha) dan tanpa pengendalian. Persentase kematian secara visual tertinggi (88,1%) pada perlakuan saflufenacil 75 g.b.a/ha + paraquat 1500 g.b.a/ha. Persentase mortalitas pada Stenochlaena palustris tertinggi (86,94%) pada saflufenacil 75 g.b.a/ha + paraquat 1500 g.b.a/ha. Persentase mortalitas pada Nephrolepis biserrata tertinggi (74,07%) pada saflufenacil 75 g.b.a/ha + metil metsulfuron 75 g.b.a/ha.