Influence of cultivation technology elements on the weed component of agrophytocenosis in spring rape crops
https://doi.org/10.26898/0370-8799-2023-1-4
Abstract
Data from field experiments for 2019-2021 conducted under conditions of the North Kazakhstan region are presented. The methods of improving the elements of cultivation technology of spring rape varieties and hybrids aimed at optimizing the indicators of productivity are shown. The species composition, biological groups of weeds, components of agrophytocenosis and the degree of weed infestation of spring rape varieties and hybrids were determined. Basic recordings and observations were made in accordance with the methodology of state variety testing. The following varieties were included in the study: Jubilee, Geros, Maikudyk, Hunter, Mahaon and hybrids: Caliber, Bilder, GEN0009. The study of varieties and hybrids was conducted in two experiments: on the background of two forecrops (complete fallow and spring wheat); by seeding rates (2.0; 2.5 and 3.0 million germinated seeds/ha). The 2019-2021 results show that the degree of infestation depended on the characteristics of the variety or hybrid. It was found that in the experiment on the forecrops the crops of spring rape on complete fallow were slightly cleaner. Due to the implemented agrotechnics, complete fallow allows you to clean the soil from weeds and accumulate moisture in the root layer, but statistically significant differences were not detected. The cleanest crops were the variety Maikudyk (2.6%) and the hybrid Bilder (2.8%). In the second experiment, it was found that increasing seeding rates from 2.0 to 3.0 million germinated seeds/ha led to a gradual decrease in weediness. The variety Maikudyk (degree of weeding 13.9%) and the hybrid Bilder (14.7%) had the lowest weediness in this experiment.
About the Author
E. A. Cherkasova
Northern Trans-Ural State Agricultural University
Russian Federation
Russian Federation
External Doctorate Student
49, Stroitelnaya St., Pokrovka vil., Esilsky District, North-Kazakhstan Region, 150513, Republic of Kazakhstan
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Review
For citations:
Cherkasova E.A. Influence of cultivation technology elements on the weed component of agrophytocenosis in spring rape crops. Siberian Herald of Agricultural Science. 2023;53(1):29-35. (In Russ.) https://doi.org/10.26898/0370-8799-2023-1-4
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