Year: 2018
Type: article
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.
Authors: A. V. Kostyuk, N. G. Lukacheva
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
OpenAlex ID: W2898341806