Efficiency of herbicides depending on time of their application in spring triticale crops | Эффективность гербицидов в зависимости от сроков их внесения в посевах яровой тритикале
2012
Pestereva, A.S. | Soroka, S.V., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute of Plant Protection
In the conditions of the Republic of Belarus there were presented results of researches on evaluating the efficiency of application periods of herbicides lintur, WDG and tribune, DFS on number, weight and introduction into soil of lamb's-quarters (Chenopodium album), black bindweed (Polygonum convolvulus), corn mayweed (Matricaria inodora), shepherd's-purse (Capsella bursa-pastoris) and other annual dicotyledonous weed plant seeds. It was determined that the herbicide biological efficiency at 2-3 leaves of the crop stage spraying was higher for 2,9-18,0% what concerns weed plant number decrease and for 1,0-7,6% what concerns vegetative weight decrease in comparison with the application at tillering stage. A decrease of weed seed introduction into soil as a result of herbicides application at 2-3 leaves of the crop stage has made 95,2-96,7%, at tillering stage - 86,0-94,9%. In the variants with weed control at spring triticale (Triticosecale) at earlier stages the volume of preserved yield was higher in comparison with later terms of herbicide application.
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