{"id":15418,"date":"2026-06-24T13:15:21","date_gmt":"2026-06-24T12:15:21","guid":{"rendered":"https:\/\/izvestiyakbncran.ru\/?page_id=15418"},"modified":"2026-06-30T12:47:22","modified_gmt":"2026-06-30T11:47:22","slug":"28-3-10-en","status":"publish","type":"page","link":"https:\/\/izvestiyakbncran.ru\/index.php\/en\/28-3-10-en\/","title":{"rendered":"28.3.10 En"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-lora-font-family\" style=\"font-size:22px\"><strong>Influence of seeding rate and slope aspect on the productivity of &#8216;Shikhan&#8217;corn hybrid in the Bugulma-Belebey Upland<\/strong><\/h2>\n\n\n\n<p class=\"has-foreground-color has-text-color has-link-color has-lora-font-family has-extra-small-font-size wp-elements-c09c949e3abb35ec046f200a5bbc2834 wp-block-paragraph\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\"><strong>B.G. Akhiyarov, G.R. Abdulvaleeva, R.R. Abdulvaleev, L.M. Akhiyarova, B.Kh. Gazizov<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group is-vertical is-content-justification-left is-nowrap is-layout-flex wp-container-core-group-is-layout-20193d73 wp-block-group-is-layout-flex\" style=\"border-style:none;border-width:0px;margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\">\n<p class=\"has-text-color has-link-color has-lora-font-family wp-elements-1934a6274ad67c2dd8d97ce7471e2bbb wp-block-paragraph\" style=\"color:#5b1919;font-size:12px;text-decoration:underline\"><\/p>\n\n\n\n<div class=\"wp-block-group is-horizontal is-layout-flex wp-container-core-group-is-layout-9076828a wp-block-group-is-layout-flex\" style=\"min-height:0px;margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\">\n<div class=\"wp-block-buttons is-content-justification-left is-layout-flex wp-container-core-buttons-is-layout-856cf56e wp-block-buttons-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link has-background-background-color has-text-color has-background has-link-color has-border-color has-custom-font-size wp-element-button\" href=\"http:\/\/izvestiyakbncran.ru\/wp-content\/uploads\/2026\/06\/10.-ahiyarov-abdulvaleeva-1.pdf\" style=\"border-color:#5b1919;border-style:solid;border-width:2px;border-radius:8px;color:#5b1919;padding-top:0.4rem;padding-right:var(--wp--preset--spacing--40);padding-bottom:0.4rem;padding-left:var(--wp--preset--spacing--40);font-size:12px\">PDF<\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:0px;width:0px\" aria-hidden=\"true\" class=\"wp-block-spacer wp-container-content-273e683f\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-outline is-style-outline--2\"><a class=\"wp-block-button__link has-background-background-color has-text-color has-background has-link-color has-border-color has-text-align-center has-custom-font-size wp-element-button\" href=\"http:\/\/izvestiyakbncran.ru\/wp-content\/uploads\/2026\/06\/10-influence.xml\" style=\"border-color:#5b1919;border-width:2px;border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;color:#5b1919;padding-top:0.4rem;padding-right:var(--wp--preset--spacing--40);padding-bottom:0.4rem;padding-left:var(--wp--preset--spacing--40);font-size:12px\">JATS XML<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-color has-link-color has-lora-font-family has-extra-small-font-size wp-elements-41ee428b6a5740c7f514a7432ff786a3 wp-block-paragraph\" style=\"border-style:none;border-width:0px;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-left-radius:0px;border-bottom-right-radius:0px;color:#5b1919;margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><\/p>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\" style=\"margin-top:var(--wp--preset--spacing--20);margin-bottom:var(--wp--preset--spacing--20)\"\/>\n\n\n\n<p class=\"has-foreground-color has-text-color has-link-color has-lora-font-family has-extra-small-font-size wp-elements-49b5346f8f13306c69aca7b70392bd16 wp-block-paragraph\" style=\"line-height:1.4\"><em><strong><strong>Abstract<\/strong><\/strong>. <\/em>This paper examines the results of field trials (2023\u20132025) on the &#8216;Shikhan&#8217; corn hybrid, analyzing how various seeding rates (from 65.000 to 90.000 seeds\/ha) and slope exposures (flatland, upper, middle, and lower positions) influence crop yield and grain characteristics. The research was carried out within a landscape-field crop rotation system in the Alsheevsky District of the Republic of Bashkortostan (Bugulma-Belebey Upland), supported by the Priority-2030 program at Bashkir State Agrarian University.<br>The results indicate that the maximum yields of green biomass (45,52 t\/ha) and grain (10,21 t\/ha) were achieved at a seeding rate of 85 thousand seeds\/ha on the lower slope position, driven by enhanced moisture and nutrient accumulation. For plateaus and middle slope positions, a seeding rate of 80 thousand seeds\/ha proved optimal. A further increase in seeding density to 90 thousand seeds\/ha led to a significant reduction in yield across all topographical features.<br>Grain protein and starch contents were also influenced by planting density and topography. The maximum protein and starch contents (11,0 % and 69,0 %, respectively) were observed at a seeding rate of 85 thousand seeds\/ha on the upper slope. The study revealed a clear trend of decreasing values for both quality indicators from the upper to the lower slope, with the difference in starch content reaching up to 10,3 %.<br><strong>Results<\/strong>. These findings substantiate the necessity of site-specific seeding rates adjusted for topography: 80\u201385 thousand seeds\/ha for plateaus and upper slope positions, and 75\u201380 thousand seeds\/ha for middle and lower slope zones. Implementing this terrain-specific strategy maximizes yields, enhances grain quality parameters, and ensures higher profitability for corn production across the sloping lands of the Bugulma-Belebey Upland.<\/p>\n\n\n\n<p class=\"has-foreground-color has-text-color has-link-color has-lora-font-family has-extra-small-font-size wp-elements-df03325adc83c022634de6b79d43432f wp-block-paragraph\" style=\"line-height:1.4\"><\/p>\n\n\n\n<p class=\"has-foreground-color has-text-color has-link-color has-lora-font-family has-extra-small-font-size wp-elements-206e1f0a34891a1da0b4623fc4919492 wp-block-paragraph\" style=\"line-height:1.4\"><strong><em><strong>Keywords<\/strong><\/em><\/strong><em>:<\/em> corn, green mass, grain, yield, quality, agricultural landscape, slope, southern exposure, part of slope<\/p>\n\n\n\n<p class=\"has-foreground-color has-text-color has-link-color has-lora-font-family has-extra-small-font-size wp-elements-df03325adc83c022634de6b79d43432f wp-block-paragraph\" style=\"line-height:1.4\"><\/p>\n\n\n\n<p class=\"has-foreground-color has-text-color has-link-color has-lora-font-family wp-elements-7bb5efd126ef9489a7f9209f3d41a65c wp-block-paragraph\" style=\"font-size:12px;line-height:1.4\"><strong><strong>For citation<\/strong>.<\/strong> Akhiyarov B.G., Abdulvaleeva G.R., Abdulvaleev R.R., Akhiyarova L.M., Gazizov B.Kh. Influence of seeding rate and slope aspect on the productivity of &#8216;Shikhan&#8217;corn hybrid in the Bugulma -Belebey Upland. News of the Kabardino-Balkarian Scientific Center of RAS. 2026. Vol. 28. No. 3. Pp. 132\u2013142. DOI: 10.35330\/1991-6639-2026-28-3-132-142<\/p>\n\n\n\n<p class=\"has-foreground-color has-text-color has-link-color has-lora-font-family wp-elements-17c3333a0b1db39b7fa4a3e1a1572bc4 wp-block-paragraph\" style=\"font-size:12px;line-height:1.4\"><\/p>\n\n\n\n<p class=\"has-foreground-color has-text-color has-link-color has-lora-font-family wp-elements-62e3d6cff83b3908d960bacc7b40bfe7 wp-block-paragraph\" style=\"font-size:12px;line-height:1.4\">\u00a9&nbsp;&nbsp;Akhiyarov B.G., Abdulvaleeva G.R., Abdulvaleev R.R., Akhiyarova L.M., Gazizov B.Kh., 2026<\/p>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-8e2b6fff wp-block-group-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--20);padding-top:0;padding-bottom:0\">\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"80\" height=\"28\" src=\"https:\/\/izvestiyakbncran.ru\/wp-content\/uploads\/2026\/03\/image.png\" alt=\"\" class=\"wp-image-7229\"\/><\/figure>\n\n\n\n<p class=\"has-foreground-color has-text-color has-link-color has-lora-font-family wp-elements-05a6ee62a5b706afe3764dcf35c80ac8 wp-block-paragraph\" style=\"margin-top:var(--wp--preset--spacing--20);margin-bottom:0;font-size:12px\">Content is available under license&nbsp;<a href=\"http:\/\/creativecommons.org\/licenses\/by\/4.0\/\" target=\"_blank\" rel=\"noreferrer noopener\">Creative Commons Attribution 4.0 License<\/a><\/p>\n<\/div>\n\n\n\n<p class=\"has-foreground-color has-text-color has-link-color has-lora-font-family wp-elements-17c3333a0b1db39b7fa4a3e1a1572bc4 wp-block-paragraph\" style=\"font-size:12px;line-height:1.4\"><\/p>\n\n\n\n<details class=\"wp-block-details has-foreground-color has-text-color has-link-color has-lora-font-family has-extra-small-font-size wp-elements-51a2ad223633f4932091edd13414e6e6 is-layout-flow wp-container-core-details-is-layout-f488f964 wp-block-details-is-layout-flow\" style=\"font-style:normal;font-weight:700;line-height:1.5\"><summary><strong>R<\/strong>eferences<\/summary>\n<ol style=\"margin-top:0;margin-bottom:0\" class=\"wp-block-list\">\n<li style=\"font-style:normal;font-weight:400\">Fomin A.E., Kazak A.A. Yield of Corn Hybrids in the Northern Forest-Steppe of the Tyumen Region. Agro-Food Policy of Russia. 2022. No. 2-3. Pp. 29\u201334. EDN: QWEYOW. (In Russian)<\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:400\">Abdulvaleev R.R. Distribution of Snow Cover Depending on Field Relief. Agrarian Science in Innovative Development of the AIC: Proceedings of the International Scientific and Practical Conf. within the Framework of the Int. Specialized Exhibition &#171;Agrocomplex \u2013 2015&#187;. Ufa: Bashkir State Agrarian University, 2015. Pp. 3\u20136. EDN: YMXPQD. (In Russian)<\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:400\">Gurin A.G., Evdakova M.V. Comparative study of corn hybrids of different ecological and geographical origins in the Oryol region. Bulletin of Agrarian Science. 2020. No. 4 (85). Pp. 3\u20138. EDN: TEJOEA. (In Russian)<\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:400\">Akhiyarov B.G., Sotchenko B.N., Abdulvaleev R.R. et al. Yield formation of corn hybrids in the conditions of the Republic of Bashkortostan. Perm Agrarian Journal. 2020. No. 1 (29).<br>Pp. 28\u201337. DOI: 10.24411\/2307-2873-2020-10011. (In Russian)<\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:400\">Sotchenko V.S. Corn cultivation technology. Sotchenko V.S., Bagrintseva V.N. Agricultural Bulletin of Stavropol Region. 2015. No. S2. Pp. 79\u201384. EDN: TSLIKX. (In Russian)<\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:400\">Bagrintseva V.N., Ivashenenko I.N. Efficiency of using ammonium nitrate and KAS-32 fertilizer in growing grain corn. News of the Kabardino-Balkarian Scientific Center of the Russian Academy of Sciences. 2025. Vol. 27. No. 5. Pp. 191\u2013199. DOI: 10.35330\/1991-6639-2025-27-5-191-199. EDN: LRZRJJ. (In Russian)<\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:400\">Kalinina K. Which corn hybrids are not afraid of stress. AgroForum. 2021. No. 1. Pp. 39\u201343. EDN: GUWUQJ. (In Russian)<\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:400\">Cherkashina A.V. Growing corn in Crimea. History. Problems and prospects. Kukuruza i sorgo [Corn and sorghum]. 2017. No. 4. Pp. 29\u201331. EDN: YMHRPQ. (In Russian)<\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:400\">Dadaeva T.A. Isakov A.N. Results of ecological variety testing of spring grain crops on gray forest soils of the Kaluga Region. In the collection: Agroecological aspects of sustainable development of the agro-industrial complex. Proceedings of the XV International Scientific Conference. 2018. Pp. 293\u2013298. EDN: XWKOHZ. (In Russian)<\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:400\">Sotchenko Yu.V., Sotchenko E.F., Sotchenko B.N. et al. Biological characteristics of maize hybrids in the conditions of the Republic of Bashkortostan. Theory and practice of modern agricultural science. Proceedings of the III National (All-Russian) Scientific Conference with International Participation. 2020. Pp. 283\u2013287. EDN: NEOVWY. (In Russian)<\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:400\">Cherkashina M. Alimgafarov R., Kuznetsov I., Cherkashina A. Yield of different onion varieties depending on the level of mineral nutrition and growth regulators in the conditions of the southern forest-steppe of the republic of Bashkortostan. In the collection: E3S Web of Conferences. X International Annual Conference \u201cIndustrial Technologies and Engineering\u201d (ICITE 2023). Les Ulis, 2024. P. 03007.<\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:400\">Akhiyarov B., Kuznetsov I., Alimgafarov R. et al. The influence of different seeding application rates and sowing time on maize hybrids&#8217; productivity in the conditions of the republic of bashkortostan&#8217;s southern forest-steppe zone. Applied and Environmental Soil Science. 2021. T. 2021. P. 4914508.<\/li>\n<\/ol>\n<\/details>\n\n\n\n<details class=\"wp-block-details has-foreground-color has-text-color has-link-color has-lora-font-family has-extra-small-font-size wp-elements-d701ffad9dfdb207b70b4c24cc4620e0 is-layout-flow wp-container-core-details-is-layout-9ff6af70 wp-block-details-is-layout-flow\" style=\"font-style:normal;font-weight:700;line-height:1.5\"><summary><strong>Information about the authors<\/strong><\/summary>\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-1c18c512 wp-block-group-is-layout-flex\" style=\"min-height:0px;margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--40)\">\n<p class=\"wp-block-paragraph\" style=\"font-style:normal;font-weight:400\"><strong>Bulat G. Akhiyarov<\/strong>, Candidate of Agricultural Sciences, Associate Professor, Department of Plant Growing, Plant Breeding and Biotechnology, Bashkir State Agrarian University;<br>34, 50th Anniversary of October, Ufa, 450001, Russia;<br>bsau-bulat@rambler.ru, ORCID: https:\/\/orcid.org\/0000-0003-4739-5225, SPIN-code: 9400-4670<br><strong>Guzaliya R. Abdulvaleeva<\/strong>, Postgraduate Student, Department of Plant Growing, Plant Breeding and Biotechnology, Bashkir State Agrarian University;<br>34, 50th Anniversary of October, Ufa, 450001, Russia;<br>grabdulvaleeva@mail.ru, SPIN-code: 9755-3870<br><strong>Rishat R. Abdulvaleev<\/strong>, Doctor of Agricultural Sciences, Associate Professor of the Department of Soil Science, Agrochemistry and Precision Agriculture, Bashkir State Agrarian University;<br>34, 50th Anniversary of October, Ufa, 450001, Russia;<br>rischatkim@mail.ru, ORCID: https:\/\/orcid.org\/0000-0002-6251-7035, SPIN-code: 1453-9780<br><strong>Luiza M. Akhiyarova<\/strong>, Candidate of Agricultural Sciences, Associate Professor, Head of Research Department of Soil Science, Agrochemistry, and Precision Farming, Bashkir State Agrarian University;<br>34, 50th Anniversary of October, Ufa, 450001, Russia;<br>akhijarva-luiza@rambler.ru, SPIN-code: 6190-1447<br><strong>Bulat Kh. Gazizov<\/strong>, Postgraduate Student, Department of Plant Production, Plant Breeding, and Biotechnology, Bashkir State Agrarian University;<br>34, 50th Anniversary of October, Ufa, 450001, Russia;<br>bulat.22.12.2000@yandex.ru<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-style:normal;font-weight:400\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-style:normal;font-weight:400\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-style:normal;font-weight:400\"><\/p>\n<\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-details has-foreground-color has-text-color has-link-color has-lora-font-family wp-elements-452cbc12bbc5feb9a1402dce7d5f0f2f is-layout-flow wp-block-details-is-layout-flow\" style=\"font-size:14px\"><summary><strong>Funding<\/strong><\/summary>\n<p class=\"wp-block-paragraph\" style=\"margin-top:var(--wp--preset--spacing--20);margin-bottom:var(--wp--preset--spacing--20)\">The study was performed without external funding.<\/p>\n<\/details>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Influence of seeding rate and slope aspect on the productivity of &#8216;Shikhan&#8217;corn hybrid in the Bugulma-Belebey Upland B.G. Akhiyarov, G.R. Abdulvaleeva, R.R. Abdulvaleev, L.M. Akhiyarova, B.Kh. Gazizov Abstract. This paper examines the results of field trials (2023\u20132025) on the &#8216;Shikhan&#8217; corn hybrid, analyzing how various seeding rates (from 65.000 to 90.000 seeds\/ha) and slope exposures [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"wp-custom-template-home","meta":{"footnotes":""},"class_list":["post-15418","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>28.3.10 En - \u0418\u0417\u0412\u0415\u0421\u0422\u0418\u042f \u041a\u0410\u0411\u0410\u0420\u0414\u0418\u041d\u041e-\u0411\u0410\u041b\u041a\u0410\u0420\u0421\u041a\u041e\u0413\u041e \u041d\u0410\u0423\u0427\u041d\u041e\u0413\u041e \u0426\u0415\u041d\u0422\u0420\u0410 \u0420\u0410\u041d\u00bb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/izvestiyakbncran.ru\/index.php\/en\/28-3-10-en\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"28.3.10 En - \u0418\u0417\u0412\u0415\u0421\u0422\u0418\u042f \u041a\u0410\u0411\u0410\u0420\u0414\u0418\u041d\u041e-\u0411\u0410\u041b\u041a\u0410\u0420\u0421\u041a\u041e\u0413\u041e \u041d\u0410\u0423\u0427\u041d\u041e\u0413\u041e \u0426\u0415\u041d\u0422\u0420\u0410 \u0420\u0410\u041d\u00bb\" \/>\n<meta property=\"og:description\" content=\"Influence of seeding rate and slope aspect on the productivity of &#8216;Shikhan&#8217;corn hybrid in the Bugulma-Belebey Upland B.G. Akhiyarov, G.R. Abdulvaleeva, R.R. Abdulvaleev, L.M. Akhiyarova, B.Kh. Gazizov Abstract. 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