THE EFFECIENCY OF LEAF EFFECT HERBICIDES FOR CORN CROPS
https://doi.org/10.26898/0370-8799-2018-4-3
Abstract
The efficiency of leaf effect herbicides in corn crops was studied. The study was carried out in 2001–2016 in the experimental fields of Primorye on brown meadow podzolized soils containing 3-4% of humus in the arable horizon. In 2001–2010 corn of hybrid population Slavyanka was sown and in 2015–2016 – ZPTK196, with a seeding rate of 70.000 seeds/ha. Herbicides Milagro (1.0 and 1.5 l/ha), Titus (0.04 kg/ha), Cordus (0.04 kg/ ha) and Doublon Gold (0.07 kg/ha) in tank mixture with Luvaram (0.82 l/ha) or Dianatom (0.4 l/ ha) enhanced the effect of preparations on weed plants, especially on common ragweed (Ambrosia artemisiifolia). Biological efficiency increased to 74–90%, and yield – by 0.43–1.80 t/ha. The use of herbicide Basis (0.02 and 0.025 kg/ha) led to the increase in corn grain yield to 1.43–2.06 t/ ha. Resistant to this herbicide was dayflower (Commelina communis), which, due to the lack of other weeds, increased the above-ground mass to 1.3 kg / m2.. The application of herbicide MaisTer provided the yield increase up to 2.09–2.41 t/ha. It was observed that for more reliable suppression of common ragweed, herbicide MaisTer (0.125 and 0.15 kg/ha) should be used no later than the phase of three pairs of leaves when the air temperature does not exceed 200C. The herbicides Titus Plus (0.34 and 0.38 kg/ha) and Stellar (1.5l/ ha) almost completely purified the corn from weeds, which contributed to the preservation of 2.07–3.59 t/ha of corn.
About the Authors
A. V. Kostyuk
The Far Eastern Research Institute of Plant Protection.
Russian Federation
Russian Federation
Candidate of Science in Agriculture, Laboratory Head.
42-а, Mira St, Kamen-Rybolov, Khankaisky district, Primorsky Territory, 692684
N. G. Lukacheva
The Far Eastern Research Institute of Plant Protection.
Russian Federation
Russian Federation
Candidate of Science in Agriculture, Senior Researcher.
42-а, Mira St, Kamen-Rybolov, Khankaisky district, Primorsky Territory, 692684
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Review
For citations:
Kostyuk A.V., Lukacheva N.G. THE EFFECIENCY OF LEAF EFFECT HERBICIDES FOR CORN CROPS. Siberian Herald of Agricultural Science. 2018;48(4):20-26. (In Russ.) https://doi.org/10.26898/0370-8799-2018-4-3
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