The influence of adjuvants on the efficacy of nicosulfuron in maize
Zadorozhny, V.(Ukraine National Academy of Sciences, Vinnitsa (Ukraine). Feed Research Inst.)E-mail:[email protected] | Borona, V.(Ukraine National Academy of Sciences, Vinnitsa (Ukraine). Feed Research Inst.)
The improvement of chemical method involves use of modern application techniques, synthesis of new herbicides and adjuvants. Adding adjuvants to tank mixtures of pesticides is common practice in many countries of the world. For Ukrainian agriculture, which is characterized by limited financial resources and high degree of dependence upon imported pesticides, the search for cheap and ecologically friendly adjuvants is of great importance. Use of tank mixtures of herbicides with a different mode of action is a possibility of optimization of chemical method of weed control. The efficacy of nicosulfuron was the highest when applied at early stages of weed plant development, when adequate level of weed control was achieved by applying nicosulfuron at the dose of 37.5 g a.i. haE-1. Inclusion of ammonium nitrate to the spray solution of nicosulfuron allows reducing application rate by 25% without any loss of efficacy.
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