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The influence of agroclimatic conditions and mineral fertilizers on the grain productivity of spring triticale in the conditions of Mari El Republic

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  • Additional Information
    • Publication Information:
      FARC of the North-East named N.V. Rudnitskogo, 2022.
    • Publication Date:
      2022
    • Abstract:
      The article presents data of 2019-2021 on the influence of agroclimatic conditions and doses of mineral fertilizers on the grain productivity of 13 varieties of spring triticale. A close dependence of the yield of triticale varieties on the reserves of productive moisture in the soil layer of 0-50 cm was established for the periods May-June (r = 0.73) and July-August (r = 0.85). Without the use of mineral fertilizers in arid conditions with reserves of productive moisture in 0-50 cm soil layer from 61 to 92 mm in the first half of the growing season, the grain productivity of spring triticale varieties was less than 3 t/ha. Under more favorable conditions of soil moistening (154 mm), the yield was almost 4 t/ha, which is a very good indicator for the conditions of Mari El Republic. Against the background of the application of mineral fertilizers in doses of N30-60P60K60, the grain productivity of varieties increased: Rovnya by 20-33 %, Saur ‒ 57-78 %, Savva ‒ 5-22 %, Timur ‒ 39-77 %, Dobroye ‒ 42-60 %, Zaozerye ‒ 38-40 %, KNIISKH 9 ‒ 16-40 %, KNIISKH 11 ‒ 12-30 %, KNIISKH 22 ‒ 22-28 %. On average, over three years of research, the varieties of spring triticale Dobroye (3.43 t/ha), Savva (3.12 t/ha) and KNIISKH 9 (3.26 t/ha) were characterized by a weak reaction to unfavorable soil moisture conditions and provided consistently high productivity of feed grain. The case of Dobroye variety, the most optimal variant for cultivating spring triticale in a simulated agrophytocenosis with a seeding rate of 4 million germinating seeds per hectare when applying N60P30K30 is established. On average for two years of the research the yield of this variety has reached 4.12 t/ha with a seeding rate of 4 million germinating seeds per hectare, which is 8 % higher than the control (3 million germinating seeds per hectare) and 22 % higher than in the variant with a seeding rate of 5 million pcs/ha.
    • ISSN:
      2500-1396
      2072-9081
    • Accession Number:
      10.30766/2072-9081.2022.23.3.307-317
    • Accession Number:
      10.60692/1w5er-fdr18
    • Accession Number:
      10.60692/a3bsf-9bf35
    • Rights:
      URL: https://www.agronauka-sv.ru/jour/about/editorialPolicies#openAccessPolicy
    • Accession Number:
      edsair.doi.dedup.....9be9fdc269d0d5b64a89e81ac189f9fe