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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/32496
Title: | . Long term effects of crop residues and fertility management on carbon sequestration and agronomic productivity of groundnut – fingermillet rotation on an Alfisol in southern India. |
Other Titles: | . Long term effects of crop residues and fertility management on carbon sequestration and agronomic productivity of groundnut – fingermillet rotation on an Alfisol in southern India. |
Authors: | ICAR_CRIDA |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR_CRIDA |
Published/ Complete Date: | 2012 |
Project Code: | Not Available |
Keywords: | carbon inputs; carbon sequestration; groundnut–finger millet rotation; semi-arid tropics; sustainable yield index |
Publisher: | Venkateswarlu B, |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | The data from long-term management and cropping systems experiments are needed to assess changes in soil quality, organic carbon pool, and agronomic sustainability. Thus, a 13-year-old soil fertility management experiment was used to assess the impact of crop residues carbon (C) inputs on SOC stock in a rainfed groundnut (Arachis hypogeae L.)–fingermillet (Eleusine coracana (L.) Gaertn) rotation in semiarid alfisol. The application of farmyard manure (FYM) alone or in a combination with chemical fertilizers contributed to higher amounts of C inputs and subsequently to build up a higher SOC pool. Application of 10 Mg ha21 of FYM and a recommended dose of chemical fertilizer (25:21.8:20.7 and 50:21.8:20.7 kg N, P, K ha21 for groundnut and fingermillet, respectively) increased soil SOC pool by 41.2% to 73.0 Mg ha21 with an increase of 9.3 Mg ha21 over 13 years. Both SOC pool and rates of its sequestration were positively correlated with cumulative C input and sustainable yield index. A minimal input of 1.62 Mg C ha21 yr21 is needed to maintain SOC pool at the antecedent level. Balanced application of NPK fertilizers is needed to reduce and reverse the depletion of SOC pool. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Technical Report |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | International Journal of Agricultural Sustainability |
NAAS Rating: | 8.28 |
Volume No.: | 10 |
Page Number: | 1-15. |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/32496 |
Appears in Collections: | NRM-CRIDA-Publication |
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