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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">vimjour</journal-id><journal-title-group><journal-title xml:lang="ru">Сельскохозяйственные машины и технологии</journal-title><trans-title-group xml:lang="en"><trans-title>Agricultural Machinery and Technologies</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7599</issn><publisher><publisher-name>Federal State Budgetary Scientific Institution «Federal Scientific Agroengineering Center VIM»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22314/2073-7599-2020-14-2-41-55</article-id><article-id custom-type="elpub" pub-id-type="custom">vimjour-380</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>ТЕХНИКА ДЛЯ РАСТЕНИЕВОДСТВА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MACHINERY FOR PLANT GROWING</subject></subj-group></article-categories><title-group><article-title>Результаты экспериментальных исследований сеялки для рядового посева СЗД­4,0</article-title><trans-title-group xml:lang="en"><trans-title>Results of Experimental Studies of the Seed Drill for Row Sowing SZD­4.0</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Камбулов</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kambulov</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Иванович Камбулов, доктор технических наук, доцент, главный научный сотрудник</p><p>г. Зерноград</p></bio><bio xml:lang="en"><p>Sergey I. Kambulov, Dr.Sc.(Eng.), associate professor, chief researcher</p><p>Zernograd</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пархоменко</surname><given-names>Г. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Parkhomenko</surname><given-names>G. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Галина Геннадьевна Пархоменко, кандидат технических наук, ведущий научный сотрудник</p><p>г. Зерноград</p></bio><bio xml:lang="en"><p>Galina G. Parkhomenko, Ph.D.(Eng.), leading researcher</p><p>Zernograd</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Божко</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bozhko</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Игорь Владимирович Божко, кандидат технических наук, младший научный сотрудник</p><p>г. Зерноград</p></bio><bio xml:lang="en"><p>Igor V. Bozhko,Ph.D.(Eng.), junior researcher</p><p>Zernograd</p></bio><email xlink:type="simple">i.v.bozhko@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>Бойко</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Boyko</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Александрович Бойко, старший преподаватель</p><p>г. Ростов-на-Дону</p></bio><bio xml:lang="en"><p>Andrey A. Boyko, senior lecturer</p><p>Rostov-on-Don</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Аграрный научный центр «Донской»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Agricultural Research Center «Donskoy»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Донской государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Don State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>25</day><month>06</month><year>2020</year></pub-date><volume>14</volume><issue>2</issue><fpage>41</fpage><lpage>45</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Камбулов С.И., Пархоменко Г.Г., Божко И.В., Бойко А.А., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Камбулов С.И., Пархоменко Г.Г., Божко И.В., Бойко А.А.</copyright-holder><copyright-holder xml:lang="en">Kambulov S.I., Parkhomenko G.G., Bozhko I.V., Boyko A.A.</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.vimsmit.com/jour/article/view/380">https://www.vimsmit.com/jour/article/view/380</self-uri><abstract><p>Посевные агрегаты считаются наиболее сложными сельскохозяйственными машинами, так как они выполняют много операций – как последовательно, так и одновременно. При этом сельхозтоваропроизводители заинтересованы в безупречной работе агрегатов. Для качественного выполнения технологических операций и улучшения энергетических показателей сеялок важно хорошо знать и совершенствовать их конструкцию.</p><p>(Цель исследования) Определить основные агротехнические и энергетические показатели сеялки для рядового посева СЗД-4,0.</p><p>(Материалы и методы) Экспериментальные исследования сеялки СЗД-4,0 провели на посеве озимой пшеницы при влажности почвы 8,4-29,7 процента в слое 5-10 сантиметров, твердость почвы – 0,8-2,0 мегапаскаля, глубина взрыхленного слоя по фракциям 0-10 сантиметров составила 48,0-53,2 процента. Энергетическую оценку осуществляли на трех скоростных режимах в агрегате с трактором МТЗ-80, оборудованным динамометром и измерительной регистрирующей системой.</p><p>(Результаты и обсуждение) Выявили основные агротехнические показатели сеялки: среднюю глубину заделки семян при максимальном, минимальном и оптимальном заглублении сошников, количественную долю семян, заделанных на заданную глубину, высоту гребней после прохода агрегата, число всходов и относительную полевую всхожесть. Изучили основные энергетические показатели: тяговое сопротивление сеялки, потребляемую мощность агрегата, мощность, затраченную на преодоление тягового сопротивления машины, удельные энергозатраты агрегата, удельный расход топлива за время основной работы, удельное тяговое сопротивление. </p><p>(Выводы) Подтвердили, что при скорости движения агрегата 9,5-13,5 километра в час рабочие органы сеялки обеспечили необходимую глубину заделки семян, фактическая норма высева и количественная доля семян заделанных в слое, соответствуют агротребованиям. Определили оптимальный режим работы: со скоростью 12,04 километра в час, при глубине хода сошников 54,6 миллиметра и при загрузке двигателя энергосредства на 76 процентов.</p></abstract><trans-abstract xml:lang="en"><p>Sowing units are considered to be the most complex agricultural machines, as they perform many operations - both sequentially and simultaneously. At the same time, agricultural producers are interested in the high-quality operation of the units. For the high-quality execution of technological operations and the improvement of energy indicators, seeders it is important to know and improve their design.</p><p>(Research purpose) To determine the main agrotechnical and energy indicators of the seed drill for row sowing of SZD-4.0.</p><p>(Materials and methods) Experimental studies of the SZD-4.0 seed drill were carried out on winter wheat sowing at a soil moisture content of 8.4-29.7 percent in a layer of 5-10 centimeters, a soil hardness of 0.8-2.0 megapascals, the depth of a loosened layer fractions of 0-10 centimeters amounted to 48.0-53.2 percent. Energy assessment was carried out at three speed modes in an aggregate with an MTZ-80 tractor equipped with a dynamometer and a measuring recording system.</p><p>(Results and discussion) The main agrotechnical indicators of the seeder were revealed: the average depth of seed placement at the maximum, minimum and optimal depth of the coulters, the quantitative proportion of seeds planted at a specified depth, the height of the ridges after the passage of the unit, the number of seedlings and relative field germination. The authors studied the main energy indicators: the traction resistance of the seeder, the power consumption of the unit, the power spent on overcoming the traction resistance of the machine, the specific energy consumption of the unit, the specific fuel consumption during the main operation, the specific traction resistance.</p><p>(Conclusions) It was confirmed that when the speed of the unit was 9.5-13.5 kilometers per hour, the working bodies of the seeder provided the depth of seed placement, the actual seeding rate, and the quantitative proportion of seeds planted in the layer corresponding to agricultural requirements. They determined the optimal mode of operation: at a speed of 12.04 kilometers per hour, with a coulter depth of 54.6 millimeters and when loading the engine of an energy facility by 76 percent.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>агротехнические и энергетические показатели</kwd><kwd>экспериментальные исследования</kwd><kwd>сеялка зернотуковая дисковая</kwd><kwd>рядовой посев.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>agrotechnical and energy indicators</kwd><kwd>experimental studies</kwd><kwd>grain-fertilizer disk seeder</kwd><kwd>row sowing</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Yang X., Chen X., Yang X. Phosphorus release kinetics and solubility capacity of phosphorus fractionation induced by organic acids from a black soil in Northeast China. Canadian Journal of Soil Science. 2019. Vol. 99. 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