Assessment of the biotypes of the Russian wildrye (Psathyrostachys juncea (Fisch)) with multislope use
https://doi.org/10.32634/0869-8155-2021-348-4-75-78
Abstract
The article presents the results of the multi-scale use of the Russian wildrye in the nursery of the source material and research on its nutritional value. The nursery of the source material was laid in 2015 by nesting method on the territory of the botanical garden “Research Institute of Agricultural Problems of Khakassia” in the amount of 26 samples. The work was carried out in accordance with the guidelines for the selection of perennial cereal grasses, selection and seed production of perennial grasses. Observations of the growth and development of plants, accounting of the productivity of the studied varieties were carried out on the selection of forage grasses in Siberia. When evaluating this culture for pasture use four mowing operatios were carried out. The characteristic value is not only the absolute value of the growth of the crop, but its relative stability of regrowth during the growing season. According to the sum of the four mows, the highest productivity of the green mass was observed in K 1, K 2, K 3, K 5, K 6, K 9, and K 18 — from 500 g to 720 g.The capacity of the grass stand after grazing is one of the indicators that determine the normal state and development of plants. After four — fold mowing, the numbers K 1, K 2, K 3, K 5, K 6, K 9, and K 18 had a high bush power-from 3.6 to 4.6 points. For the main mowing, forage units were allocated to 1, To 2 — 0,69 — 0,69 kg of feed standard 0.49 kg and at otave 0.68-0.67 kg, standard 0.49 kg, respectively, for digestible protein To 1-149.6, To 2 — 162.5 g / kg of feed standard 141.1 g/kg and to 1-147.2, to 2 — 140.2, standard 140.0 g/kg of feed) and for exchange energy for the main mowing to 1 and 2 9.8 MJ and 10.0 MJ, standard (Manchaara) — 9.7 MJ.
About the Authors
V. F. Kadorkina
FSBNU “Research Institute of Agrarian Problems of Khakassia”
Russian Federation
Russian Federation
Head of the group of feed production breeding and seed production
Ust-Abakan district, s. Green, st. Sadovaya, 5
M. S. Shevtsova
FSBNU “Research Institute of Agrarian Problems of Khakassia”
Russian Federation
Russian Federation
Candidate of Agricultural Sciences, researcher of the group of feed production, breeding and seed production
Ust-Abakan district, s. Green, st. Sadovaya, 5
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Review
For citations:
Kadorkina V.F., Shevtsova M.S. Assessment of the biotypes of the Russian wildrye (Psathyrostachys juncea (Fisch)) with multislope use. Agrarian science. 2021;(4):75-78. (In Russ.) https://doi.org/10.32634/0869-8155-2021-348-4-75-78
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