[Influence of herbicide application on the yield and quality of wheat]
2001
Stasinskis, E. (Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture. Dept. of Soil Management)
The given research on the influence of herbicides on the yield and quality of winter and spring wheat was carried out in the company Dobele Agra during the period of two years. Four herbicides - Lintur, Ariane, Duplosan Super and Secator - were tested on winter and spring wheat in field trials. Their effect was compared. The yield and the quality of crop, yield structure as well as weed infestation were determined. Grain quality indices (gluten content, protein content, zeleny index) were analysed in the laboratory by means of infrared wave method and the Infratec 1275 analyser. The obtained results show significant increase of the yield and grain quality values of spring wheat in all the cases of herbicide application except for the treatment with Lintur. In the trials with winter wheat all the above mentioned herbicides increased crop yields significantly, though the increase of grain quality was observed in the case of the treatment with secator. The reduction of weed infestation had greater influence on the quality of spring wheat compared to that of winter wheat.
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