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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">vestiag</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия аграрных наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Agrarian Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1817-7204</issn><issn pub-type="epub">1817-7239</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestiag-196</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>ЗЕМЛЯРОБСТВА І РАСЛІНАВОДСТВA</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>AGRICULTURE AND PLANT CULTIVATION</subject></subj-group></article-categories><title-group><article-title>АКТИВНОСТЬ ГИДРОЛИТИЧЕСКИХ ФЕРМЕНТОВ ЦИКЛОВ УГЛЕРОДА И АЗОТА В ВЫСОКО ОКУЛЬТУРЕННОЙ ДЕРНОВО-ПОДЗОЛИСТОЙ ЛЕГКОСУГЛИНИСТОЙ ПОЧВЕ ПРИ РАЗНЫХ УРОВНЯХ МИНЕРАЛЬНОГО ПИТАНИЯ</article-title><trans-title-group xml:lang="en"><trans-title>ACTIVITIES OF HYDROLYTIC ENZYMES IN CARBON AND NITROGEN CYCLES IN HIGHLY FERTILE LUVISOL SANDY LOAM SOIL UNDER DIFFERENT LEVELS OF MINERAL NUTRITION</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>ЛАПА</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>LAPA</surname><given-names>V. V.</given-names></name></name-alternatives><email xlink:type="simple">bionf1@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>МИХАЙЛОВСКАЯ</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>MIKHAILOVSKAYA</surname><given-names>N. А.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>КАСЬЯНЧИК</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>КАSYANCHIK</surname><given-names>S. А.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>МЕЗЕНЦЕВА</surname><given-names>Е. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>МEZENTSEVA</surname><given-names>Е. G.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>КУЛЕШ</surname><given-names>О. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>КULESH</surname><given-names>О. G.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ПОГИРНИЦ</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>POGIRNITSKAYA</surname><given-names>Т. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>БАРАШЕНКО</surname><given-names>Т. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>BARASHENKO</surname><given-names>Т. B.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт почвоведения и агрохимии</institution></aff><aff xml:lang="en"><institution>The Institute for Soil Science and Agrochemistry</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>07</day><month>11</month><year>2016</year></pub-date><volume>1</volume><issue>3</issue><fpage>57</fpage><lpage>65</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ЛАПА В.В., МИХАЙЛОВСКАЯ Н.А., КАСЬЯНЧИК С.А., МЕЗЕНЦЕВА Е.Г., КУЛЕШ О.Г., ПОГИРНИЦ Т.В., БАРАШЕНКО Т.Б., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">ЛАПА В.В., МИХАЙЛОВСКАЯ Н.А., КАСЬЯНЧИК С.А., МЕЗЕНЦЕВА Е.Г., КУЛЕШ О.Г., ПОГИРНИЦ Т.В., БАРАШЕНКО Т.Б.</copyright-holder><copyright-holder xml:lang="en">LAPA V.V., MIKHAILOVSKAYA N.А., КАSYANCHIK S.А., МEZENTSEVA Е.G., КULESH О.G., POGIRNITSKAYA Т.V., BARASHENKO Т.B.</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://vestiagr.belnauka.by/jour/article/view/196">https://vestiagr.belnauka.by/jour/article/view/196</self-uri><abstract><p>На основании определения активности ключевых гидролитических ферментов в циклах С и N (целлюлаза, инвертаза, протеаза и уреаза) получены биохимические показатели минерализации при разных уровнях минерального питания сельскохозяйственных культур на высоко окультуренной дерново-подзолистой легкосуглинистой почве. Приведены биохимические показатели усиления минерализации при внесении 60 т/га соломистого навоза, его сочетании с Р20K45 и Р40K90, а также при внесении возрастающих доз азота (N60 и N60+30 под зерновые культуры, N90 и N90+30 под кукурузу) и их сочетании с микроэлементами (N60+30Cu50+Mn50 под зерновые культуры и N90+30Zn100 под кукурузу) на фонах навоза и его сочетаний с РK-удобрениями. По критериям высокой и устойчивой продуктивности культур и сберегающего уровня минерализации в циклах С и N определены экологически целесообразные варианты нагрузки по удобрениям, обеспечивающие сохранение достигнутого уровня плодородия.</p></abstract><trans-abstract xml:lang="en"><p>As a result of determination of activities of hydrolytic enzymes of C and N cycles (cellulase, invertase, protease and urease) biochemical parameters of mineralization have been calculated under different levels of crop fertilization on highly fertile Luvisol sandy loam soil. Biochemical parameters of mineralization increase due to the application of FYM (60 t ha–1), its combination with PK-fertilizer (Р20K45 and Р40K90) as well as due to increasing doses of nitrogen (N60 and N60+30 for cereals, N90 and N90+30 for maize) and its combination with microelements (N60+30Cu50+Mn50 for cereals, N90+30Zn100 for maize) are presented. On the basis of the criteria of high and sustainable crop productivity as well as moderate level of mineralization in C and N cycles ecologically reasonable fertilizer treatments which ensure the maintenance of the reached level of fertility have been established.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гидролитические ферменты С- и N-циклов</kwd><kwd>биохимические показатели минерализации</kwd><kwd>высоко окультуренная дерново-подзолистая легкосуглинистая почва</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hydrolytic enzymes С and N cycles</kwd><kwd>biochemical parameters of mineralization</kwd><kwd>highly fertile Luvisol sandy loam soil</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">Агрохимическая характеристика почв сельскохозяйственных земель Республики Беларусь (2007–2010) / под общ. ред. И. М. 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