Agroecosystem Stability with the Application of Fertilizers and Biopreparations
- Autores: Alferov A.A.1, Chernova L.S.1
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Afiliações:
- Pryanishnikov All-Russia Research Institute for Agrochemistry
- Edição: Volume 45, Nº 4 (2019)
- Páginas: 360-363
- Seção: Soil Science
- URL: https://journal-vniispk.ru/1068-3674/article/view/231052
- DOI: https://doi.org/10.3103/S1068367419040025
- ID: 231052
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Resumo
Biomass of spring wheat on sod-podzolic soil largely forms due to soil nitrogen, the share of which reaches four-fifths of the total removal of the element when using mineral fertilizers. Inoculation increases the fertilizer nitrogen use efficiency by 4.5% and reduces losses by 7%; there is a trend to increase the immobilization of N fertilizers. Stability of an agroecosystem is characterized by nitrogen flows. During the growing season of spring wheat, the amount of mineralized nitrogen depending on the fertilizer amounts to 17.4–18.0 g/m2, while the amount of reimmobilized nitrogen is 4.4–4.9 g/m2 and net-mineralization (N-M) is 13.1 g/m2. The inoculation of seeds with Rhizoagrin does not significantly affect the processes of mineralization (M) and reimmobilization (RI) in anything but a positive trend of increase in mineralization and reimmobilization of nitrogen in the soil. The use of nitrogen fertilizer brings the agroecosystem into a state of resistance (the maximum threshold limit of exposure (RI : M = 25% and N-M : RI = 3)). On average, over the years of research, inoculation of seeds with Rhizoagrin did not change the indicators of an agroecosystem’s stability with the application of the fertilizers.
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Sobre autores
A. Alferov
Pryanishnikov All-Russia Research Institute for Agrochemistry
Autor responsável pela correspondência
Email: alferov72@yandex.ru
Rússia, Moscow, 127550
L. Chernova
Pryanishnikov All-Russia Research Institute for Agrochemistry
Email: alferov72@yandex.ru
Rússia, Moscow, 127550
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