Оrganization of a green conveyor of zoned perennial grasses in the Far North
https://doi.org/10.32634/0869-8155-2021-351-7-8-93-96
Abstract
Relevance. The aim of the work is to create a green conveyor belt of perennial zoned grasses in floodplain meadows. For the first time in the Far North on the basis of field experience were studied species composition and mode of use of perennial grasses and legumes for green belt.
Methods. The research was conducted in 2018–2020 in field conditions in the experimental field laboratory of horticulture of Yakut Scientific Research Institute of Agriculture named after M.G. Safronov in the Khangalassky ulus of the Sakha Republic (Yakutia). The soil of the experimental site is permafrost floodplain turf light loamy. Sowing was carried out in summer in the first decade of July.
Results. The article includes data on the yield, chemical composition and nutritional value, and economic efficiency of perennial grasses. Over the years of research, the maximum yield was obtained from the grass mixtures of rumps (20)+ wheatgrass (16) — 4.0 t/ha of green mass, which is higher than the natural herbage by 2.4 t/ha of green mass. The yield of net sowing of sickle alfalfa (8 kg/ha) was 4.5 t/ha of green mass. The maximum yield from leguminous grass mixtures was provided by a two-component mixture of alfalfa (8 kg/ha) + stalk (10 kg/ha) — 4.9 t/ha of green mass. The highest content of crude protein when creating a green conveyor from single-species cereal crops is observed in red oatmeal — 18.2%, while the content of exchange energy is 9.1 MJ, feed units — 0.66, digestible protein — 122 g in 1 kg of dry matter. Of legumes and cereals the highest content of raw protein is provided by alfalfa (8 kg/ha) — 19.0%, while the content of exchange energy is 9.3 MJ, feed units — 0.70, digestible protein is 120 g per 1 kg of dry matter. When creating a green conveyor from grass stands, a high conditional net income is obtained when sowing boneless stalk (20 kg/ha) +w heatgrass (16 kg/ha) — 5688 rubles/ha, while the cost of production is 12,000 rubles/ha, the profitability is 90%.
Keywords
About the Authors
S. A. Pavlova
Yakut Scientific Research Institute of Agriculture named after M.G. Safronov
Russian Federation
Russian Federation
23/1 Bestuzhev-Marlinskogo st., Yakutsk, 677001, Republic of Sakha (Yakutia)
E. S. Pestereva
Yakut Scientific Research Institute of Agriculture named after M.G. Safronov
Russian Federation
Russian Federation
23/1 Bestuzhev-Marlinskogo st., Yakutsk, 677001, Republic of Sakha (Yakutia)
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Review
For citations:
Pavlova S.A., Pestereva E.S. Оrganization of a green conveyor of zoned perennial grasses in the Far North. Agrarian science. 2021;(7-8):93-96. (In Russ.) https://doi.org/10.32634/0869-8155-2021-351-7-8-93-96
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