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| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
15/03/2022 |
Actualizado : |
15/03/2022 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
NÚÑEZ, A.; COTRUFO, M.F.; SCHIPANSKI, M. |
Afiliación : |
AGUSTIN NUÑEZ RUSSI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./ Department of Soil and Crop Sciences, Colorado State University, 307 University Ave., Fort Collins, CO 80523-1170, USA.; M. FRANCESCA COTRUFO, Department of Soil and Crop Sciences, Colorado State University, 307 University Ave., Fort Collins, CO 80523-1170, USA.; MEAGAN SCHIPANSKI, Department of Soil and Crop Sciences, Colorado State University, 307 University Ave., Fort Collins, CO 80523-1170, USA. |
Título : |
Irrigation effects on the formation of soil organic matter from aboveground plant litter inputs in semiarid agricultural systems. |
Fecha de publicación : |
2022 |
Fuente / Imprenta : |
Geoderma, 2022, Volume 416, Article number 115804. doi: https://doi.org/10.1016/j.geoderma.2022.115804 |
DOI : |
10.1016/j.geoderma.2022.115804 |
Idioma : |
Inglés |
Notas : |
Article history: Received 28 October 2021/ Revised 25 February 2022/ Accepted 25 February 2022/ Available online 7 March 2022 /Version of Record 7 March 2022. |
Contenido : |
ABSTRACT: In semiarid agricultural systems, irrigation may increase soil organic matter (SOM) due to higher biomass
production. However, aboveground production tends to increase more than belowground biomass, and in no-till
systems SOM responses to irrigation would strongly depend on the fate of crop residues left on the soil surface.
Litter decomposition and SOM formation can also be affected by irrigation due to changes in water dynamics, but
little is known about the impacts of irrigation on the pathways of SOM formation. We used dual 13C and 15N
labeled maize litter to quantify the effect of irrigation on the contribution of aboveground crop residues to SOM
formation in semiarid, no-till agricultural systems. We incubated the litter in a continuous maize cropping system
with two treatments, dryland and irrigated, and measured litter decomposition and its contribution to different
SOM pools. Irrigation had a larger effect on litter C and N losses than on the formation of new SOM. After 13
months the C and N losses from the litter layer were 24% higher under irrigation, but there were no treatment
differences in the litter-derived C and N recovered in SOM. Most of the litter-derived organic matter (OM) was
found in the mineral associated OM pool (MAOM), but irrigation did not affect the amount of litter-derived OM
found as MAOM or as particulate organic matter. Irrigation increased the amount of litter-derived OM found in
macroaggregates, and this observation was more related to a higher aggregation than to aggregate enrichment in
the irrigated treatment. Our results suggest that a smaller proportion of aboveground crop residues will form
SOM in irrigated systems compared to dryland conditions and may help to partially explain why irrigation has a
stronger relative effect on crop productivity and C inputs than on SOC stocks in semiarid agricultural systems. MenosABSTRACT: In semiarid agricultural systems, irrigation may increase soil organic matter (SOM) due to higher biomass
production. However, aboveground production tends to increase more than belowground biomass, and in no-till
systems SOM responses to irrigation would strongly depend on the fate of crop residues left on the soil surface.
Litter decomposition and SOM formation can also be affected by irrigation due to changes in water dynamics, but
little is known about the impacts of irrigation on the pathways of SOM formation. We used dual 13C and 15N
labeled maize litter to quantify the effect of irrigation on the contribution of aboveground crop residues to SOM
formation in semiarid, no-till agricultural systems. We incubated the litter in a continuous maize cropping system
with two treatments, dryland and irrigated, and measured litter decomposition and its contribution to different
SOM pools. Irrigation had a larger effect on litter C and N losses than on the formation of new SOM. After 13
months the C and N losses from the litter layer were 24% higher under irrigation, but there were no treatment
differences in the litter-derived C and N recovered in SOM. Most of the litter-derived organic matter (OM) was
found in the mineral associated OM pool (MAOM), but irrigation did not affect the amount of litter-derived OM
found as MAOM or as particulate organic matter. Irrigation increased the amount of litter-derived OM found in
macroaggregates, and this observation ... Presentar Todo |
Palabras claves : |
13C; 15N; Aggregates; Litter decomposition; Physical fractionation; Table isotopes. |
Asunto categoría : |
-- |
Marc : |
LEADER 02845naa a2200241 a 4500 001 1062838 005 2022-03-15 008 2022 bl uuuu u00u1 u #d 024 7 $a10.1016/j.geoderma.2022.115804$2DOI 100 1 $aNÚÑEZ, A. 245 $aIrrigation effects on the formation of soil organic matter from aboveground plant litter inputs in semiarid agricultural systems.$h[electronic resource] 260 $c2022 500 $aArticle history: Received 28 October 2021/ Revised 25 February 2022/ Accepted 25 February 2022/ Available online 7 March 2022 /Version of Record 7 March 2022. 520 $aABSTRACT: In semiarid agricultural systems, irrigation may increase soil organic matter (SOM) due to higher biomass production. However, aboveground production tends to increase more than belowground biomass, and in no-till systems SOM responses to irrigation would strongly depend on the fate of crop residues left on the soil surface. Litter decomposition and SOM formation can also be affected by irrigation due to changes in water dynamics, but little is known about the impacts of irrigation on the pathways of SOM formation. We used dual 13C and 15N labeled maize litter to quantify the effect of irrigation on the contribution of aboveground crop residues to SOM formation in semiarid, no-till agricultural systems. We incubated the litter in a continuous maize cropping system with two treatments, dryland and irrigated, and measured litter decomposition and its contribution to different SOM pools. Irrigation had a larger effect on litter C and N losses than on the formation of new SOM. After 13 months the C and N losses from the litter layer were 24% higher under irrigation, but there were no treatment differences in the litter-derived C and N recovered in SOM. Most of the litter-derived organic matter (OM) was found in the mineral associated OM pool (MAOM), but irrigation did not affect the amount of litter-derived OM found as MAOM or as particulate organic matter. Irrigation increased the amount of litter-derived OM found in macroaggregates, and this observation was more related to a higher aggregation than to aggregate enrichment in the irrigated treatment. Our results suggest that a smaller proportion of aboveground crop residues will form SOM in irrigated systems compared to dryland conditions and may help to partially explain why irrigation has a stronger relative effect on crop productivity and C inputs than on SOC stocks in semiarid agricultural systems. 653 $a13C 653 $a15N 653 $aAggregates 653 $aLitter decomposition 653 $aPhysical fractionation 653 $aTable isotopes 700 1 $aCOTRUFO, M.F. 700 1 $aSCHIPANSKI, M. 773 $tGeoderma, 2022, Volume 416, Article number 115804. doi: https://doi.org/10.1016/j.geoderma.2022.115804
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| Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha actual : |
21/02/2014 |
Actualizado : |
10/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
B - 1 |
Autor : |
ASTESSIANO, A.L.; PÉREZ-CLARIGET, R.; QUINTANS, G.; SOCA, P.; CARRIQUIRY, M. |
Afiliación : |
GRACIELA QUINTANS ILARIA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
Título : |
Effects of a short-term increase in the nutritional plane before the mating period on metabolic and endocrine parameters, hepatic gene expression and reproduction in primaparous beef cows on grazing conditions. |
Fecha de publicación : |
2012 |
Fuente / Imprenta : |
Journal of Animal Physiology and Animal Nutrition, 2012, v.96, no.3, p.535-544. |
ISSN : |
1439-0396 |
DOI : |
10.1111/j.1439-0396.2011.01178.x |
Idioma : |
Inglés |
Notas : |
Article history: received: 23 February 2011; accepted: 5 May 2011. |
Contenido : |
Abstract:
Sixty-four spring-calved primiparous crossbred cows paired by calving date and body condition score (BCS) at calving were used to study the effect of a short-term increase in the nutritional plane before the mating period on cow and calf performance, changes in metabolic and endocrine parameters and hepatic gene expression. At 48 ± 10 days postpartum (onset of nutritional treatment = day 0), cows were assigned to two treatments during 23 days: control (grazing of native pastures; NP; n = 31) and increased nutritional plane (NP improved with Lotus subbiflorous cv Rincon; IP; n = 33). Cow body weight (BW), BCS and total
protein and albumin concentrations increased while urea and non-esterified fatty acids levels decreased from the beginning of the nutritional treatment in both groups, indicating the animal positive energy balance as forage growth and availability of pastures increased during spring. In addition, cow BW and BCS, as well as calf average daily gain and BW, were greater in IP than in NP cows groups. Insulin concentrations were less in IP than in NP (1.37 vs. 2.25 ± 0.26 lU/ml) because insulin increased owing to nutritional treatment only in NP cows. Hepatic insulin receptor mRNA at day 23 tended to be 1.5-fold greater, while insulin growth factor binding protein-3 mRNA expression was 1.7-fold greater in NP than in IP cows. Reproductive responses were not affected by nutritional treatment, but days to initiation of ovarian ciclicity (108 ± 10 days) were positively correlated with insulin concentrations.
Grazing of improved NP for 23 days before the mating period did not improve cow reproductive performance but modified metabolic, endocrine and gene expression parameters, in agreement with greater nutrient and energy partitioning towards milk production, reflected in better calf performance. MenosAbstract:
Sixty-four spring-calved primiparous crossbred cows paired by calving date and body condition score (BCS) at calving were used to study the effect of a short-term increase in the nutritional plane before the mating period on cow and calf performance, changes in metabolic and endocrine parameters and hepatic gene expression. At 48 ± 10 days postpartum (onset of nutritional treatment = day 0), cows were assigned to two treatments during 23 days: control (grazing of native pastures; NP; n = 31) and increased nutritional plane (NP improved with Lotus subbiflorous cv Rincon; IP; n = 33). Cow body weight (BW), BCS and total
protein and albumin concentrations increased while urea and non-esterified fatty acids levels decreased from the beginning of the nutritional treatment in both groups, indicating the animal positive energy balance as forage growth and availability of pastures increased during spring. In addition, cow BW and BCS, as well as calf average daily gain and BW, were greater in IP than in NP cows groups. Insulin concentrations were less in IP than in NP (1.37 vs. 2.25 ± 0.26 lU/ml) because insulin increased owing to nutritional treatment only in NP cows. Hepatic insulin receptor mRNA at day 23 tended to be 1.5-fold greater, while insulin growth factor binding protein-3 mRNA expression was 1.7-fold greater in NP than in IP cows. Reproductive responses were not affected by nutritional treatment, but days to initiation of ovarian ciclicity (108 ± 10 days) were p... Presentar Todo |
Palabras claves : |
CATTLE; HORMONES; METABOLITES; MRNA; PASTURES. |
Thesagro : |
BOVINOS; REPRODUCCION; SUPLEMENTACION; URUGUAY. |
Asunto categoría : |
L51 Fisiología Animal - Nutrición |
Marc : |
LEADER 02874naa a2200313 a 4500 001 1032760 005 2019-10-10 008 2012 bl uuuu u00u1 u #d 022 $a1439-0396 024 7 $a10.1111/j.1439-0396.2011.01178.x$2DOI 100 1 $aASTESSIANO, A.L. 245 $aEffects of a short-term increase in the nutritional plane before the mating period on metabolic and endocrine parameters, hepatic gene expression and reproduction in primaparous beef cows on grazing conditions. 260 $c2012 500 $aArticle history: received: 23 February 2011; accepted: 5 May 2011. 520 $aAbstract: Sixty-four spring-calved primiparous crossbred cows paired by calving date and body condition score (BCS) at calving were used to study the effect of a short-term increase in the nutritional plane before the mating period on cow and calf performance, changes in metabolic and endocrine parameters and hepatic gene expression. At 48 ± 10 days postpartum (onset of nutritional treatment = day 0), cows were assigned to two treatments during 23 days: control (grazing of native pastures; NP; n = 31) and increased nutritional plane (NP improved with Lotus subbiflorous cv Rincon; IP; n = 33). Cow body weight (BW), BCS and total protein and albumin concentrations increased while urea and non-esterified fatty acids levels decreased from the beginning of the nutritional treatment in both groups, indicating the animal positive energy balance as forage growth and availability of pastures increased during spring. In addition, cow BW and BCS, as well as calf average daily gain and BW, were greater in IP than in NP cows groups. Insulin concentrations were less in IP than in NP (1.37 vs. 2.25 ± 0.26 lU/ml) because insulin increased owing to nutritional treatment only in NP cows. Hepatic insulin receptor mRNA at day 23 tended to be 1.5-fold greater, while insulin growth factor binding protein-3 mRNA expression was 1.7-fold greater in NP than in IP cows. Reproductive responses were not affected by nutritional treatment, but days to initiation of ovarian ciclicity (108 ± 10 days) were positively correlated with insulin concentrations. Grazing of improved NP for 23 days before the mating period did not improve cow reproductive performance but modified metabolic, endocrine and gene expression parameters, in agreement with greater nutrient and energy partitioning towards milk production, reflected in better calf performance. 650 $aBOVINOS 650 $aREPRODUCCION 650 $aSUPLEMENTACION 650 $aURUGUAY 653 $aCATTLE 653 $aHORMONES 653 $aMETABOLITES 653 $aMRNA 653 $aPASTURES 700 1 $aPÉREZ-CLARIGET, R. 700 1 $aQUINTANS, G. 700 1 $aSOCA, P. 700 1 $aCARRIQUIRY, M. 773 $tJournal of Animal Physiology and Animal Nutrition, 2012$gv.96, no.3, p.535-544.
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