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http://krishi.icar.gov.in/jspui/handle/123456789/37397
Title: | Soil Carbon Sequestration in Long-Term Fertilization under Jute-Rice-Wheat Agro-Ecosystem |
Other Titles: | Not Available |
Authors: | A. K. Singh, M. S. Behera, S. P. Mazumdar & D. K. Kundu |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::Central Research Institute for Jute and Allied Fibres |
Published/ Complete Date: | 2019-03-13 |
Project Code: | JA 6.0 |
Keywords: | Carbon sequestration; jute-rice- wheat system; long-term fertilization; RothC model |
Publisher: | Tayler & Francis |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | Soil organic carbon (SOC) sequestration in response to long-term fertilizer management practices under jute-rice-wheat agro-ecosystem in alluvial soils was studied using a modeling approach. Fertilizer management practices included nitrogen (N), phosphorus (P) and potassium (K) fertilization, manure application, and root-stubble retention of all three crops. Soil carbon (C) model RothC was used to simulate the critical C input rates needed to maintain initial soil C level in long timescale (44 years). SOC change was significantly influenced by the long-term fertilizer management practices and the edaphic variable of initial SOC content. The effects of fertilizer combination “100%NPK+FYM” on SOC changes were most significant over “100%NPK” fertilization. If the 100% NPK fertilizer along with manure applied with stubble and roots retention of all crops, alluvial soils of such agro-ecosystem would act as a net C sink, and the average SOC density kept increasing from 18.18 Mg ha−1 during 1972 to the current average of ∼22 Mg ha−1 during 2065 s. On an average, the critical C input was estimated to be 5.30 Mg C ha−1 yr−1, depending on local soil and climatic conditions. The critical C input could be effectively estimated using a summary model driven by current SOC level, mean annual temperature, precipitation, and soil clay content. Such information will provide a baseline for assessing soil C dynamics under potential changes in fertilizer and crop residues management practices, and thus enable development of management strategies for effectively mitigating climate change through soil C sequestration. |
Description: | Not Available |
ISSN: | 0010-3624 |
Type(s) of content: | Journal |
Language: | English |
Name of Journal: | Communications in Soil Science and Plant Analysis |
NAAS Rating: | 6.77 |
Volume No.: | 50(6) |
Page Number: | 739–748 |
Name of the Division/Regional Station: | Crop Production Division |
Source, DOI or any other URL: | 10.1080/00103624.2019.1589483 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/37397 |
Appears in Collections: | CS-CRIJAF-Publication |
Files in This Item:
File | Description | Size | Format | |
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02 Soil Carbon Sequestration-Final Print Apr2019.pdf | 1.15 MB | Adobe PDF | View/Open |
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