Affiliation:
1. Kazan State Agrarian University
Abstract
Field experiments on alfalfa crops of the Aisylu variety were conducted in 2020-2022 on the basis of the Agrobiotechnopark of the Kazan State Agrarian University (Narmonka village of the Laishevsky municipal district of the Republic of Tatarstan). The soils of the experimental site are gray forest with the following agrochemical indicators: the content of humus according to Tyurin is 3.0%, mobile phosphorus is very high (> 250 mg/kg) and exchangeable potassium is increased (145 mg/kg according to Kirsanov). The reaction of the soil medium was close to neutral (pH 6.6). The aim of the research was to develop methods to increase the yield and quality of the green mass of alfalfa on the basis of the use of various types of mineral fertilizers and the biological preparation Mizorin. The scheme of the experiment included the following options: control (without fertilizers and biologics); root dressing in spring and after the first mowing with ammonium nitrate of 100 kg/ha; root dressing in spring and after the first mowing with nitrogen strip of 100 kg/ha; root dressing in spring and after the first mowing with ammonium nitrate of 100 kg/ha in combination with leaf dressing with the biopreparation Mizorin 2 l/ha; root dressing in spring and after the first mowing with a 100 kg/ha nitrogen strip in combination with a leaf dressing with the biopreparation Mizorin 2 l/ha. Early spring feeding of alfalfa and after the first mowing with ammonium nitrate at the rate of 100 kg / ha provided additional 4.7 t/ha of green mass. In the variant of azofoska top dressing, the yield increase increases to 29.8 t/ha of the green mass of the research object. The maximum yield of the studied crop was obtained in variants of combining root and leaf fertilization, the increase in green mass increased to 64.4 and 92%, respectively.
Publisher
Infra-M Academic Publishing House
Reference18 articles.
1. Эффективность применения расчетных доз минеральных удобрений на люцерно-райграсовых лугах Среднего Поволжья / М. М. Хисматуллин, С. В. Сочнева, Н. В. Трофимов и др. // Вестник Казанского государственного аграрного университета. 2018. Т. 13, № 1(48). С. 78-82. https: //doi.org/ 10.12737/article_5afc0ad3032b51.23223038., Khismatullin M. M., Sochneva S. V., Trofimov N. V. [The effectiveness of using calculated doses of mineral fertilizers on alfalfa-ryegrass meadows of the Middle Volga region]. Vestnik Kazanskogo gosudarstvennogo agrarnogo universiteta. 2018; 13. 1(48): 78-82. https: //doi.org/ 10.12737/article_5afc0ad3032b51.23223038.
2. Гис-технологии – основа формирования высокопродуктивных агроценозов многолетних трав в почвенно-климатических условиях Республики Татарстан / Ф. Н. Сафиоллин, М. М. Хисматуллин, Н. В. Трофимов и др. // Вестник Казанского государственного аграрного университета. 2017. Т. 12, № 2(44). С. 38-41. https: //doi.org/ 10.12737/article_59a7d2271b9950.30488058., Safiollin F. N., Khismatullin M. M., Trofimov N. V. [Gis-technologies are the basis for the formation of highly productive agrocenoses of perennial grasses in the soil and climatic conditions of the Republic of Tatarstan]. Vestnik Kazanskogo gosudarstvennogo agrarnogo universiteta. 2017; 12. 2(44): 38-41. https: //doi.org/10.12737/article_59a7d2271b9950.30488058.
3. Хисматуллин М. М. Бобовые и бобово-злаковые многолетние травы - составная часть органического земледелия Республики Татарстан // Вестник Казанского государственного аграрного университета. 2019. Т. 14, № 2(53). С. 64-67. https: //doi.org/ 10.12737/article_5d3e169f50a868.00369270., Khismatullin M. M. [Legumes and legume-cereal perennial grasses - an integral part of organic farming of the Republic of Tatarstan] // Vestnik Kazanskogo gosudarstvennogo agrarnogo universiteta. 2019; 14. 2(53): 64-67. doi 10.12737/article_5d3e169f50a868.00369270.
4. Кудряшова Н. И., Булахтина Г. К. Влияние различных сроков посева на урожайность богарной люцерны в условиях светло-каштановых почв Астраханской области // Известия Нижневолжского агроуниверситетского комплекса: Наука и высшее профессиональное образование. 2023. № 3(71). С. 112-120. https: //doi.org/ 10.32786/2071-9485-2023-03-11., Kudryashova N. I., Bulakhtina G. K. [The influence of different sowing dates on the yield of rainfed alfalfa in the conditions of light chestnut soils of the Astrakhan region]. Izvestiya Nizhnevolzhskogo agrouniversitetskogo kompleksa: Nauka i vyssheye professional'noye obrazovaniye. 2023; 3(71): 112-120. https: //doi.org/ 10.32786/2071-9485-2023- 03-11.
5. Крамаренко М. В. Продуктивность многолетних бобово-мятликовых травосмесей длительного использования в условиях северной лесостепи Зауралья // Биология в сельском хозяйстве. 2018. № 1(18). С. 18-19., Kramarenko M. V. [Productivity of long-term use of perennial legume-bluegrass grass mixtures in the conditions of the northern forest-steppe of Trans-Urals]. Biologiya v sel'skom khozyaystve. 2018; 1(18): 18-19.