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2019, N 3 (37) |
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GENERAL AGRICULTURE, PLANT GROWING
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Borodiy S. |
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Simulation-dynamic model the forecast yield of medicinal raw nettle (Urtica dioica L.) |
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Subject of research — wild coenopopulation of nettle (Urtica dioica L.). The aim of the research is to develop a mathematical model of forecasting the dynamics of productivity of wild coenopopulations of nettle for the conditions of the Kostroma region. The studies were carried out in the period 1995...2018 (the area of distribution of nettle on the territory of the Kostroma region) and 2015...2018 (collection of field information development of the forecast model). The distribution area was studied by route survey. The study of the main phytometric parameters of the plant (shoot height, leaf mass of standard (13 %) humidity) was carried out on the site of the residential land use area of the Kostroma State Agricultural Academy. Found that stinging nettle is found throughout the territory of the Kostroma region. Wild thickets of industrial importance were located in places where manure and other organic fertilizers were previously stored, abandoned vegetable gardens in the territory of former settlements, along the banks of rivers and along the edges of the forest. Height dynamics of generative escape for plants over the first year of life was predicted with an accuracy of 85.2...of 99.2 percent of the mass of leaf moisture standard — of 87.6 96.5 percent, which provides the possibility of using models in planning a calendar of deadlines and volume of collection of medicinal raw materials.
Keywords: NETTLE, URTICA DIOICA L., THE DYNAMICS OF THE PRODUCTIVITY OF ESCAPE, YIELD FORECASTING, MATHEMATICAL MODEL |