The hogweed corn crops control using the subsoil and postemergent herbicides

  • S. Nosov State Institute of Agriculture of the steppe zone of Ukraine NAAS
Keywords: corn, herbicides, ground pests, yield, period sowing

Abstract

Represented are the results of studying comparative effectiveness of ground and emergency herbicides as well as their combinations on the number and bulk of ground pests in corn seeds. Established are the benefits of applying emergency herbicides and combinations of ground and emergency herbicides before using ground products only via determining the percentage of dead ground pests, reducing their air-dry bulk and increasing crop yield.The purpose of the research was to compare the effectiveness of ground and emergency herbicides as well as their combinations via registering seed infest with ground pests and crop yield of corn and to recommend the best products for yielding on this basis. The research was conducted within 2012–2013 years at Erast Experimental Station of the State Establishment, the Institute of Agriculture of Steppe Zone of the National Academy of Agrarian Sciences of Ukraine.Adengo 465 SC emergency herbicides appeared to be the most efficient in battling with ground pests within 2012–2013 years if applied in the phase of 1–2 leaves of corn and when applying Harnesses herbicide combination for harrowing along with Master Power OD in the phase of 5–7 leaves of corn.On the average over 2 years of research, air-dry bulk of ground pests was at the lowest level when applying Harnesses herbicide combination for harrowing along with Master Power OD in the phase of 5–7 leaves of corn as well as Adengo 465 SC product in the phase of 1–2 leaves of corn.The closest to II control (battling with ground pests manually) crop yield of corn over 2 years of the research was obtained from the areas of the first sowing term subject to applying Adengo 465 SC herbicide at the phase of 1–2 leaves of corn.On the basis of the conducted research, it is recommended to apply when corn yielding Adengo 465 SC herbicides in the phase of 1–2 leaves of corn at a dose of 0,45 l/ha along well harrowing Harnesses combination at a dose of 2,5 l/ha along with Master Power OD at a dose of 1,25 l/ha in the stage of 5–7 leaves of corn as the most effective means for reduction their infest with ground pests.

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Section
Agricultural sciences (agronomics, agricultural ecology, land reclamation, ecology, crops husbandry, farming)