Carbon and nitrogen mineralization potential of biofuel crop (Jatropha curcas L.) residues in soil

Use and management ofjatropha residue is currently an important global issue for attaining sustainability in biofuel production from Jatropha curcas on wastelands. Perhaps, knowledge about the decomposition characteristics and nutrient release pattern from jatropha residues amended soils are lacking...

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Autores principales:	Chaudhary,D.R, Chikara,J, Ghosh,A
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2014
Materias:	Jatropha- residue C and N mineralization mineralization potential nitrogen release pattern
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000100002
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spelling	oai:scielo:S0718-951620140001000022015-11-12Carbon and nitrogen mineralization potential of biofuel crop (Jatropha curcas L.) residues in soilChaudhary,D.RChikara,JGhosh,A Jatropha- residue C and N mineralization mineralization potential nitrogen release pattern Use and management ofjatropha residue is currently an important global issue for attaining sustainability in biofuel production from Jatropha curcas on wastelands. Perhaps, knowledge about the decomposition characteristics and nutrient release pattern from jatropha residues amended soils are lacking. Thus, the objective of present research was to characterize the carbon (C) and nitrogen (N) mineralization of jatropha residues during decomposition in soil. The chemical composition of the residues, in terms of C, N, cellulose, hemicelluloses, lignin and phenolics contents were determined. Laboratory incubation studies were carried out with two soils (inside and outside-canopy soil ofjatropha shrub) and four jatropha residues (1% w/w) amendments (cake, leaf, fruit shell or control soil only). The cumulative CO2 evolution of the added residues was in the magnitude of fruit shell>leaf>cake>control soil. Net C mineralized in soils were in the range of 46-50, 66-67 and 75-77% of C added by cake, leaf and fruit shell, respectively at the end of incubation study. Soils amended with leaf immobilized N during the first 64 days but subsequently released inorganic N. The addition of cake and fruit shell resulted in net N mineralization and net N immobilization, respectively throughout the incubation period. Cumulative N released by the end of incubation was in the order of cake>leaf>control>fruit shell. Net N mineralization in soils during the study was 75-92 and 21-27% of N added by cake and leaf, respectively whereas there was net N immobilization in fruit shell amended soil. Cumulative CO2 evolution as well as N mineralization during incubation were higher in inside-canopy soil compared with that of outside-canopy soil. Jatropha cake and leaf proved to be a potential source of mineral N, however leaf will take about 60-70 days as gestation period to mineralize the nitrogen. Similarly, leaf and fruit shell also exhibited a good potential of C mineralization.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.14 n.1 20142014-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000100002en10.4067/S0718-95162014005000002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Jatropha- residue C and N mineralization mineralization potential nitrogen release pattern
spellingShingle	Jatropha- residue C and N mineralization mineralization potential nitrogen release pattern Chaudhary,D.R Chikara,J Ghosh,A Carbon and nitrogen mineralization potential of biofuel crop (Jatropha curcas L.) residues in soil
description	Use and management ofjatropha residue is currently an important global issue for attaining sustainability in biofuel production from Jatropha curcas on wastelands. Perhaps, knowledge about the decomposition characteristics and nutrient release pattern from jatropha residues amended soils are lacking. Thus, the objective of present research was to characterize the carbon (C) and nitrogen (N) mineralization of jatropha residues during decomposition in soil. The chemical composition of the residues, in terms of C, N, cellulose, hemicelluloses, lignin and phenolics contents were determined. Laboratory incubation studies were carried out with two soils (inside and outside-canopy soil ofjatropha shrub) and four jatropha residues (1% w/w) amendments (cake, leaf, fruit shell or control soil only). The cumulative CO2 evolution of the added residues was in the magnitude of fruit shell>leaf>cake>control soil. Net C mineralized in soils were in the range of 46-50, 66-67 and 75-77% of C added by cake, leaf and fruit shell, respectively at the end of incubation study. Soils amended with leaf immobilized N during the first 64 days but subsequently released inorganic N. The addition of cake and fruit shell resulted in net N mineralization and net N immobilization, respectively throughout the incubation period. Cumulative N released by the end of incubation was in the order of cake>leaf>control>fruit shell. Net N mineralization in soils during the study was 75-92 and 21-27% of N added by cake and leaf, respectively whereas there was net N immobilization in fruit shell amended soil. Cumulative CO2 evolution as well as N mineralization during incubation were higher in inside-canopy soil compared with that of outside-canopy soil. Jatropha cake and leaf proved to be a potential source of mineral N, however leaf will take about 60-70 days as gestation period to mineralize the nitrogen. Similarly, leaf and fruit shell also exhibited a good potential of C mineralization.
author	Chaudhary,D.R Chikara,J Ghosh,A
author_facet	Chaudhary,D.R Chikara,J Ghosh,A
author_sort	Chaudhary,D.R
title	Carbon and nitrogen mineralization potential of biofuel crop (Jatropha curcas L.) residues in soil
title_short	Carbon and nitrogen mineralization potential of biofuel crop (Jatropha curcas L.) residues in soil
title_full	Carbon and nitrogen mineralization potential of biofuel crop (Jatropha curcas L.) residues in soil
title_fullStr	Carbon and nitrogen mineralization potential of biofuel crop (Jatropha curcas L.) residues in soil
title_full_unstemmed	Carbon and nitrogen mineralization potential of biofuel crop (Jatropha curcas L.) residues in soil
title_sort	carbon and nitrogen mineralization potential of biofuel crop (jatropha curcas l.) residues in soil
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000100002
work_keys_str_mv	AT chaudharydr carbonandnitrogenmineralizationpotentialofbiofuelcropjatrophacurcaslresiduesinsoil AT chikaraj carbonandnitrogenmineralizationpotentialofbiofuelcropjatrophacurcaslresiduesinsoil AT ghosha carbonandnitrogenmineralizationpotentialofbiofuelcropjatrophacurcaslresiduesinsoil
_version_	1714206474614341632

Carbon and nitrogen mineralization potential of biofuel crop (Jatropha curcas L.) residues in soil

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