Possibilities for using tank mixtures of the herbicides Goltix and Betanal on beet
Lauk, U.(Estonian Agricultural Univ., Tartu (Estonia). Dept. of Plant Protection)
Pesticides, including herbicides, are expensive and their use inevitably causes problems in the area of environment protection. Therefore, the use of herbicides should be restricted. One of the possibilities to diminish the load of herbicides on the environment is to apply smaller doses than recommended. The aim of this research was to elucidate the effectiveness of small doses of herbicides Goltix WP 70 and Betanal, used as tank mixtures, on annual weeds and yields of beet roots. The field experiment was established in Estonia near Tartu. The results of the field experiment revealed that in the dry and hot vegetation period of 2002, the influence of Goltix WP 70, through the soil, was slight both on weeds and yields. Betanal affects weeds through their overground parts, and already a quarter and a half of the recommended Betanal dose proved effective. By using tank mixtures of Betanal and Goltix WP 70, the doses of both the herbicides can be reduced by a half. Thus there is no need to treat fields twice, whereas, in addition, the load of herbicides on the environment diminishes.
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