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2020, N 1 (39) |
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GENERAL AGRICULTURE, PLANT GROWING
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Zubarev Yu.N., Falaleeva L.V., Nechunayev M.A., Zabolotnova M.V. |
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Influence of the sowing period and fertilizers on the formation of the yield of the fodder mass of the poterium polygamum first year of life in the Middle Urals |
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The article presents the results of a study of the influence of the sowing period and mineral fertilizer on the growth and development of the Poterium polygamum (Poterium polygamum Waldst. & Kit., Sanguisorba minor Scorp. Subsp balearica (Boung. Ex Nyman.) Munoz Garm. & C. Navarro), first year of life under various conditions of moisture. The studies were carried out at the Educational Scientific Experimental Field of Perm State Agrarian and Technological University named after Academician D.N. Pryanishnikov in 2017-2019. Two approach of the experiment were carried out, the data are presented for the first year of life and are illustrated with phenoclimograms of the development of the Poterium polygamum depending on the sowing period. The preliminary sowing time for the Poterium polygamum is mid-spring, 10 days after the onset of physical ripeness of the soil. Yields at this time averaged 45 c/ha of green mass over two years. Early sowing dates and 5 days after the onset of physical ripeness of the soil are not effective in the Middle Urals, due to reduced amounts of active temperatures and high potential clogging, and late sowing dates 15-20 days after physical ripeness of the soil - a decrease in rainfall. The influence of mineral nutrition on the yield level of the Poterium polygamum in the first year of life is insignificant due to the high weediness of crops. Keywords: POTERIUM POLYGAMUM, TERM OF SEEDIG, CROP YIELD, WEEDINESS, FERTILIZERS |