Dissolved Organic Carbon and Nitrogen in Andisol for Six Crop Rotations with Different Soil Management Intensity

Soil organic matter (OM) content is a quality indicator, but is an inadequate indicator in the short-term because these changes take place slowly, so dissolved organic components have emerged as an alternative. In volcanic soil subjected to different crop rotations with distinct land use intensity,...

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Autores principales:	Undurraga D,Pablo, Zagal V,Erick, Sepúlveda W,Gloria, Valderrama V,Natalia
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2009
Materias:	organic matter dissolved organic matter total C total N volcanic soil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000300018
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spelling	oai:scielo:S0718-583920090003000182018-10-01Dissolved Organic Carbon and Nitrogen in Andisol for Six Crop Rotations with Different Soil Management IntensityUndurraga D,PabloZagal V,ErickSepúlveda W,GloriaValderrama V,Natalia organic matter dissolved organic matter total C total N volcanic soil Soil organic matter (OM) content is a quality indicator, but is an inadequate indicator in the short-term because these changes take place slowly, so dissolved organic components have emerged as an alternative. In volcanic soil subjected to different crop rotations with distinct land use intensity, dissolved organic C and N (DOC and DON) were determined as well as their relationship with total C and N contents in the soil, considering the effects of crop rotation, fertilization level, and soil depth. In humid samples of Humic Haploxerands collected at four depths up to 40 cm, DOC and DON contents were determined by extraction with K2SO4 and filtered. Results indicated interaction between the studied factors, DOC fluctuated between 67.8 and 151.7 mg kg-1 with the highest value with intensive management in rotations that included corn (Zea mays L.) associated with a higher fertilization. DON fluctuated between 4.62 and 37.4 mg kg-1 with the highest value in non-intensive rotations that included prairie. With respect to total C, DOC reached 0.40% with intensive management and the lowest value in non-intensive management. DON showed values between 0.13 and 0.68% with respect to total N with intensive and non-intensive management, respectively. Tillage management affected DOC and DON contents depending on the fertilization level and the depth at which it was determined, and were also affected by the crop included in the rotation, thus making these parameters good indicators to evaluate the effects of agronomic management in the short-term.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.69 n.3 20092009-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000300018en10.4067/S0718-58392009000300018
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	organic matter dissolved organic matter total C total N volcanic soil
spellingShingle	organic matter dissolved organic matter total C total N volcanic soil Undurraga D,Pablo Zagal V,Erick Sepúlveda W,Gloria Valderrama V,Natalia Dissolved Organic Carbon and Nitrogen in Andisol for Six Crop Rotations with Different Soil Management Intensity
description	Soil organic matter (OM) content is a quality indicator, but is an inadequate indicator in the short-term because these changes take place slowly, so dissolved organic components have emerged as an alternative. In volcanic soil subjected to different crop rotations with distinct land use intensity, dissolved organic C and N (DOC and DON) were determined as well as their relationship with total C and N contents in the soil, considering the effects of crop rotation, fertilization level, and soil depth. In humid samples of Humic Haploxerands collected at four depths up to 40 cm, DOC and DON contents were determined by extraction with K2SO4 and filtered. Results indicated interaction between the studied factors, DOC fluctuated between 67.8 and 151.7 mg kg-1 with the highest value with intensive management in rotations that included corn (Zea mays L.) associated with a higher fertilization. DON fluctuated between 4.62 and 37.4 mg kg-1 with the highest value in non-intensive rotations that included prairie. With respect to total C, DOC reached 0.40% with intensive management and the lowest value in non-intensive management. DON showed values between 0.13 and 0.68% with respect to total N with intensive and non-intensive management, respectively. Tillage management affected DOC and DON contents depending on the fertilization level and the depth at which it was determined, and were also affected by the crop included in the rotation, thus making these parameters good indicators to evaluate the effects of agronomic management in the short-term.
author	Undurraga D,Pablo Zagal V,Erick Sepúlveda W,Gloria Valderrama V,Natalia
author_facet	Undurraga D,Pablo Zagal V,Erick Sepúlveda W,Gloria Valderrama V,Natalia
author_sort	Undurraga D,Pablo
title	Dissolved Organic Carbon and Nitrogen in Andisol for Six Crop Rotations with Different Soil Management Intensity
title_short	Dissolved Organic Carbon and Nitrogen in Andisol for Six Crop Rotations with Different Soil Management Intensity
title_full	Dissolved Organic Carbon and Nitrogen in Andisol for Six Crop Rotations with Different Soil Management Intensity
title_fullStr	Dissolved Organic Carbon and Nitrogen in Andisol for Six Crop Rotations with Different Soil Management Intensity
title_full_unstemmed	Dissolved Organic Carbon and Nitrogen in Andisol for Six Crop Rotations with Different Soil Management Intensity
title_sort	dissolved organic carbon and nitrogen in andisol for six crop rotations with different soil management intensity
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000300018
work_keys_str_mv	AT undurragadpablo dissolvedorganiccarbonandnitrogeninandisolforsixcroprotationswithdifferentsoilmanagementintensity AT zagalverick dissolvedorganiccarbonandnitrogeninandisolforsixcroprotationswithdifferentsoilmanagementintensity AT sepulvedawgloria dissolvedorganiccarbonandnitrogeninandisolforsixcroprotationswithdifferentsoilmanagementintensity AT valderramavnatalia dissolvedorganiccarbonandnitrogeninandisolforsixcroprotationswithdifferentsoilmanagementintensity
_version_	1714205273548128256

Dissolved Organic Carbon and Nitrogen in Andisol for Six Crop Rotations with Different Soil Management Intensity

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