Abstract
The article describes scientific research conducted in the Eskeldinsky district of the Zhetysu region in 2022-2024 to study the species, bioecological features, harmfulness of quarantine weeds and improve comprehensive protection measures against them.
Scientific and practical significance of the work: damage to the quarantine weed with a «Cūscuta vulgaris» was revealed in the villages of Karabulak, Syrymbet, Karatal, Akyn Sara, Eskeldinsky district and at the Karatal state varietal testing site. And in the village of Kaynarly, quarantine weed such as «Acroptilon repens» was often found in the farm "Kydyrbayeva" and on the roadsides in the village of akyna Sara. Peasant farms have been given recommendations on combating the harmful effects of particularly dangerous quarantine weeds in the region and a set of measures to protect them.
The results of the study showed that in the early stages of weed development Biceps 22 k.e.-1-3 l/ha and Miura, k.e. – 0.4-1.2 l/ha allowed, according to the results of the 3rd accounting, to destroy annual parasitic weeds by 93.0 - 95.0%, biologically effective was high. When applied to annual weeds, the Pilot of 1.5 - 6.0 l/ha was lower than 56.6-63.6% in the 2 nd calculation, and 82.7% biological efficiency was found in perennial weeds in the 2 nd calculation.
The biological efficiency of annual weeds increased by 46.3 - 49.5% according to the results of the 1st accounting for the use of drugs against weeds Dual gold 960, k. e. -1.5 l / ha and Tornado 540, k.e.-1.3 - 3.3 l/ha and the 3rd calculation 38.2-41.8 showed. When applied to annual weeds, Zenkor® Ultra, k.s. - 0.5 l/ha was 61.8% in the calculation, 67.1% for perennial weeds, with high biological efficiency.
01 Introduction
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02 References
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