Efektifitas Herbisida Formulasi pada Gulma Air di Lahan Rawa Tadah Hujan, Rawa Payau dan Saluran Drainase

Abstract

A series of studies had been carried out to create new types of herbicides. The studies had found six formulations of
herbicides. This study aimed to determine the effectiveness of herbicides formulation in controlling aquatic weeds. The
experiment used a randomized complete block design with seven herbicide formulations as treatments and three replications.
The seven formulations of herbicide were: Unihaz 1, Unihaz 2, Unihaz 3, Unihaz 4, Unihaz 5, Unihaz 6, and a control
(glyphosate 2 kg ha-1). The results of the study found that there were 21 species of weed in rainfed swamps, ten species in
brackish swamps and one species namely water hyacinth (Eichhornia crassipes) in drainage channel. Herbicide formulations
of Unihaz 3, 4, 5, and 6 were effective in controlling aquatic weeds in rainfed swamps. Herbicide formulations of Unihaz 2, 3
and 5 were effective in controlling aquatic weeds in brackish swamps. All herbicides formulations were effective in controlling
weeds in drainage channels. Moreover, herbicide formulation of Unihaz 5 was more effective in controlling aquatic weeds in
rainfed swamps, brackish swamps and drainage channels than other formulations, and it was not significantly different from
the use of a glyphosate dose of 2 kg ha-1.
Keywords: Eichhornia crassipes, fermented coconut water, organic herbicide, new types of herbicides