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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vetpress</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука</journal-title><trans-title-group xml:lang="en"><trans-title>Agrarian science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-8155</issn><issn pub-type="epub">2686-701X</issn><publisher><publisher-name>Редакция журнала "Аграрная наука"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32634/0869-8155-2025-398-09-106-114</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-3833</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>АГРОНОМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>AGRONOMY</subject></subj-group></article-categories><title-group><article-title>Особенности распространения Ambrosia artemisiifolia L. в период засухи</article-title><trans-title-group xml:lang="en"><trans-title>Features of the distribution of Ambrosia artemisiifolia L. during the drought period</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8800-2470</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Харченко</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Kharchenko</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виктория Евгеньевна Харченко, кандидат биологических наук, доцент кафедры биологии растений</p><p>территория ЛНАУ, 1, р-н Артемовский, г. о. Луганск, Луганская Народная Республика, 291008</p></bio><bio xml:lang="en"><p>Victoria Evgenievna Kharchenko, Candidate of Biological Sciences, Associate Professor of the Department of Plant Biology</p><p>1 territory of LNAU, Artemovsky district, Lugansk, Lugansk People’s Republic, 291008</p></bio><email xlink:type="simple">viktoriakharchenko@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жуковская</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhukovskaya</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валерия Васильевна Жуковская, аспирант кафедры биологии растений</p><p>территория ЛНАУ, 1, р-н Артемовский, г. о. Луганск, Луганская Народная Республика, 291008</p></bio><bio xml:lang="en"><p>Valeria Vаsilyevna Zhukovskaya, Рostgraduate Student of the Department of Plant Biology</p><p>1 territory of LNAU, Artemovsky district, Lugansk, Lugansk People’s Republic, 291008</p></bio><email xlink:type="simple">zhukovskiikonstantin@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черская</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Cherskaya</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталья Александровна Черская, старший преподаватель кафедры биологии растений</p><p>территория ЛНАУ, 1, р-н Артемовский, г. о. Луганск, Луганская Народная Республика, 291008</p></bio><bio xml:lang="en"><p>Natalia Alexandrovna Cherskaya, Senior Lecturer of the Department of Plant Biology</p><p>1 territory of LNAU, Artemovsky district, Lugansk, Lugansk People’s Republic, 291008</p></bio><email xlink:type="simple">cherskaya.natali@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мельник</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Melnik</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталья Александровна Мельник, кандидат сельскохозяйственных наук, доцент кафедры биологии растений</p><p>территория ЛНАУ, 1, р-н Артемовский, г. о. Луганск, Луганская Народная Республика, 291008</p></bio><bio xml:lang="en"><p>Natalia Alexandrovna Melnik, Candidate of Agricultural Sciences, Docent of the Department of Plant Biology</p><p>1 territory of LNAU, Artemovsky district, Lugansk, Lugansk People’s Republic, 291008</p></bio><email xlink:type="simple">mna0114@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-2161-7818</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жуковский</surname><given-names>К. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhukovsky</surname><given-names>K. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Сергеевич Жуковский, аспирант кафедры земледелия и растениеводства</p><p>территория ЛНАУ, 1, р-н Артемовский, г. о. Луганск, Луганская Народная Республика, 291008</p></bio><bio xml:lang="en"><p>Konstantin Sergeevich Zhukovsky, Рostgraduate Student of the Department of Agriculture and Crop Production</p><p>1 territory of LNAU, Artemovsky district, Lugansk, Lugansk People’s Republic, 291008</p></bio><email xlink:type="simple">zhukovskiikonstantin@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Луганский государственный аграрный университет им. К.Е. Ворошилова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Luhansk Voroshilov State Agricultural University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>20</day><month>09</month><year>2025</year></pub-date><volume>0</volume><issue>9</issue><fpage>106</fpage><lpage>114</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Харченко В.Е., Жуковская В.В., Черская Н.А., Мельник Н.А., Жуковский К.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Харченко В.Е., Жуковская В.В., Черская Н.А., Мельник Н.А., Жуковский К.С.</copyright-holder><copyright-holder xml:lang="en">Kharchenko V.E., Zhukovskaya V.V., Cherskaya N.A., Melnik N.A., Zhukovsky K.S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.vetpress.ru/jour/article/view/3833">https://www.vetpress.ru/jour/article/view/3833</self-uri><abstract><p>Ambrosia artemisiifolia является сорным, инвазионным и аллергенным растением, вызывающим обеспокоенность у производителей сельскохозяйственной продукции во всём мире.</p><p>Цель данной работы — проанализировать особенности распространения A. artemisiifolia в период засухи для рекомендации мероприятий, эффективно лимитирующих ее распространение.</p><p>Объект исследования — Ambrosia artemisiifolia. Сельскохозяйственные угодья, участки степи и искусственного озеленения в условиях засухи и при ее отсутствии. В ходе исследований использовали традиционные методы геоботанических описаний. Потенциальную семенную продуктивность рассчитывали на основании числа женских цветков до и после обкашивания растений. Твердость почвы анализировали с использованием тестера DICKEY-john.</p><p>Установлено, что A. artemisiifolia не проникает в степные фитоценозы. На сельскохозяйственных угодьях ее жизнеспособность и семенная продуктивность существенно выше, чем на участках искусственного озеленения, а плотность популяций, наоборот, меньше. Частота ее встречаемости зависит от взаимодействия почвенно-климатических факторов. В период засухи на необрабатываемых открытых участках твердость почвы резко возрастает, при ее значениях 7 Мпа и выше A. artemisiifolia не развивается, несмотря на существенный запас ее семян в плодородном слое. Обкашивание несущественно снижает ее потенциальную семенную продуктивность. Высокая плотность злаков лимитирует распространение A. artemisiifolia и позволяет избежать деградации почвы в период засухи.</p></abstract><trans-abstract xml:lang="en"><p>Ambrosia artemisiifolia is a weedy, invasive and allergenic plant of concern to agricultural producers worldwide. Ambrosia artemisiifolia is a weed, invasive and allergenic weed of concern to agricultural producers worldwide.</p><p>The purpose of this work is to analyze the distribution patterns of A. artemisiifolia during drought to recommend measures that effectively limit its spread.</p><p>Object of research — Ambrosia artemisiifolia. Agricultural fields, plots of steppe and piece planting in conditions of dryness and in its absence. During research, we used traditional methods of geobotanical inventory. Potential productivity calculated based on the number of female cotyledons before and after mowing. Hardness of soil was analyzed using DICKEY-john tester.</p><p>We found that Ambrosia artemisiifolia does not establish in steppe phytocenoses. On agricultural lands, its viability and seed productivity are significantly higher compared to artificial green spaces, whereas its population density is lower. The species’ occurrence frequency depends on the interplay of soil and climatic factors. During droughts in untreated open areas, soil hardness increases sharply; at values of 7 MPa or higher, A. artemisiifolia fails to develop, despite a substantial seed bank in the topsoil. Mowing does not significantly reduce its potential seed output. A high density of cereal crops suppresses the spread of A. artemisiifolia and mitigates soil degradation during dry periods.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Ambrosia artemisiifolia</kwd><kwd>сорняки</kwd><kwd>твердость почвы</kwd><kwd>обкашивание</kwd><kwd>злаки</kwd><kwd>засуха</kwd><kwd>потенциальная семенная продуктивность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Ambrosia artemisiifolia</kwd><kwd>weeds</kwd><kwd>soil hardness</kwd><kwd>tillage</kwd><kwd>grasses</kwd><kwd>drought</kwd><kwd>potential seed productivity</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках государственного задания от 19.04.2024 № 082-00137-24-02, регистрационный № 124020300040-8.</funding-statement><funding-statement xml:lang="en">The study was carried out within the framework of the state assignment dated 04/19/2024, No. 082-00137-24-02, registration No. 124020300040-8.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Lambelet B., Clot B., Keimer C. 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