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2.5.1 the classification of Herbicides The nature of chemical herbicides not only determine the working power of herbicides on weed-controlled (efficacy), but also determine the level of toxicity (toxicity) on nontarget organisms such as plants, durability of herbicides to keep in a State of active in the soil or plant (persistence), as well as the behavior and fate of herbicides in the environment. Things – other matters relating to the safety of the use of herbicides and the registration process (register) will also need to get attention (Sembodo, 2010). Riadi (2006) classifies the herbicide into several groups, based on differences in the degree of response of a plant to grow – herbsida (selectivity), at the time of the application, the application path, or media types in plants, herbicides translocation types of translocation of herbicides in plants, and the active ingredients in the herbicides.
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