The tyumen region weather conditions impact on the dry matter content in the red clover green mass
Автор: Feoktistova Natalia Alexandrovna, Leonidov Yuri Efremovich
Журнал: Вестник Красноярского государственного аграрного университета @vestnik-kgau
Рубрика: Агрономия
Статья в выпуске: 5, 2023 года.
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The purpose of research is to study the influence of weather conditions in the Tyumen Region on the percentage of dry matter in the green mass of late-ripening varieties of red clover during the harvesting period. Observations were carried out on the experimental field of the Research Institute of Agriculture of the Northern Trans-Urals - a branch of the Tyumen Scientific Center of the Siberian Branch of the Russian Academy of Sciences in 2015-2022 on plants of 12 late-ripening (single-cut) samples of red clover of the 1st year of use. Weather conditions in most years were warm with sufficient precipitation, dry conditions were observed only in 2021; the hydrothermal coefficient (HTC) of Selyaninov was 0.47-2.55. The date of resumption of vegetation was noted in the second decade of April, the cutting of green mass was carried out in the second decade of July. In 2015-2022 harvesting of green mass from varieties of red clover ranged from 17.9 to 62.5 t/ha, with a dry matter content in it from 20.4 to 37.1 % and a difference between the values by years from 0.8 to 13.3 %. There was a relationship between the value of the HTC and the ratio of fodder products in freshly harvested (green mass) and dry form (hay). With HTC values >2, the collection of green mass was 4.2-4.6 times higher than the yield of hay with HTC function show_eabstract() { $('#eabstract1').hide(); $('#eabstract2').show(); $('#eabstract_expand').hide(); }
Green mass, hay, selyaninov hydrothermal coefficient, red clover, dry matter
Короткий адрес: https://sciup.org/140299755
IDR: 140299755 | DOI: 10.36718/1819-4036-2023-5-73-80