Estimated Carbon Sequestration by Rice Roots as Affected by Silicon Fertilizers
- Authors: Dan-Dan Z.1,2, Peng-Bo Z.3,2, Bocharnikova E.A.4, Matichenkov V.V.4, Khomyakov D.M.5, Pakhnenko E.P.5
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Affiliations:
- Hunan University of Finance and Economics
- Hunan Institute of Economic Geography
- College of Resources & Environment, Hunan Agricultural University
- Institute of Basic Biological Problems, Russian Academy of Sciences
- Moscow State University
- Issue: Vol 74, No 3 (2019)
- Pages: 105-110
- Section: Biogeochemistry
- URL: https://journals.rcsi.science/0147-6874/article/view/174803
- DOI: https://doi.org/10.3103/S0147687419030025
- ID: 174803
Cite item
Abstract
One of the most relevant tasks of modern agriculture is developing and implementing fundamentally new, available, environmentally safe “nature-like” technologies, providing a “sink” of carbon or a significant reduction in greenhouse gas emissions in all the agricultural landscapes, including those engaged in rice cultivation. In field trials conducted in Hunan province (China), the influence of silicon fertilizers on CO2 sequestration by rice plant roots was estimated. Its value depends on the content of available silicon in agrochemicals, on frequency and duration of their use, and on soil texture. The data obtained indicate the important role of silicon fertilizers in the processes of carbon sequestration and reduction of greenhouse gas emissions in rice cultivation. Their application results in increased crop yields by 12.1–71.2% and increased CO2 sequestration by plant roots by 0.95–14.9 t ha–1 in one season. Soil carbon recovery and soil fertility reproduction can be ensured by intensive development of the plant root system and by an increase in root residues’ mass after harvest. Agrochemicals containing silicon available for plants should be included in the 4R-strategy for mineral nutrition of agricultural crops.
About the authors
Zhao Dan-Dan
Hunan University of Finance and Economics; Hunan Institute of Economic Geography
Author for correspondence.
Email: 178987618@qq.com
China, Changsha; Changsha
Zhang Peng-Bo
College of Resources & Environment, Hunan Agricultural University; Hunan Institute of Economic Geography
Author for correspondence.
Email: yexingzhe332312910@qq.com
China, Changsha; Changsha
E. A. Bocharnikova
Institute of Basic Biological Problems, Russian Academy of Sciences
Author for correspondence.
Email: mswk@rambler.ru
Russian Federation, Puschino
V. V. Matichenkov
Institute of Basic Biological Problems, Russian Academy of Sciences
Author for correspondence.
Email: vvmatichenkov@rambler.ru
Russian Federation, Puschino
D. M. Khomyakov
Moscow State University
Author for correspondence.
Email: khom@soil.msu.ru
Russian Federation, Moscow
E. P. Pakhnenko
Moscow State University
Author for correspondence.
Email: urosh@rambler.ru
Russian Federation, Moscow
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