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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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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Treinta y Tres. |
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Fecha : |
21/10/2019 |
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Actualizado : |
27/04/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
GRAHMANN, K.; RUBIO, V.; TERRA, J.A.; QUINCKE, A. |
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Afiliación : |
KATHRIN GRAHMANN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.; VALENTINA RUBIO DELLEPIANE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSÉ ALFREDO TERRA FERNÁNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JUAN ANDRES QUINCKE WALDEN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Long-term observations in contrasting crop-pasture rotations over half a century: Statistical analysis of chemical soil properties and implications for soil sampling frequency. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Agriculture, Ecosystems and Environment, 1 January 2020, Volume 287, Article number 106710. OPEN ACCESS. Doi: https://doi.org/10.1016/j.agee.2019.106710 |
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DOI : |
10.1016/j.agee.2019.106710 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 12 April 2019/Received in revised form 1 October 2019/Accepted 5 October 2019 /Available online 21 October 2019. |
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Contenido : |
Abstract:
Continuous agriculture (CA) has led to sustainability problems linked with production decreases, environmental contamination, crop failure and soil degradation in many regions of the world. Crop-pasture rotations (CPR) are management alternatives that contribute to environmental sustainability and productive diversification. Long-term experiments (LTE) play a major role in evaluations of the impact of different management practices on soil quality. However, the results can be misleading if the data are not adequately analyzed. A unique dataset of annual soil samples from a 55-year-old LTE was used 1) to evaluate the effects of a crop-pasture rotation on soil quality and crop productivity and 2) to provide robust statistical models to measure long-term changes in chemical soil quality parameters. Treatments were seven rotations, including CA or CPR with different proportions of pasture in the system (33%, 50%, or 66%). Soil organic carbon (SOC), total nitrogen (Ntot), exchangeable potassium (K) and soil pH have been determined annually since 1964, and the cumulative treatment effects were analyzed. Correlation structures showing the variance heterogeneity for the study years were tested for each parameter and condition. The longer the duration was of the pasture in the rotation, the slower the degradation was in the chemical soil quality. The CPR made a key contribution to sustainable agricultural diversification and intensification, leading to 30% higher crop yields and 19% and 14% greater SOC and Ntot concentrations, respectively, compared with CA. This LTE played a major role in the identification of strategies to increase soil fertility with diversified crop rotations through pasture integration, and statistically robust results were obtained that demonstrate the significance of frequent soil surveying over the long run. MenosAbstract:
Continuous agriculture (CA) has led to sustainability problems linked with production decreases, environmental contamination, crop failure and soil degradation in many regions of the world. Crop-pasture rotations (CPR) are management alternatives that contribute to environmental sustainability and productive diversification. Long-term experiments (LTE) play a major role in evaluations of the impact of different management practices on soil quality. However, the results can be misleading if the data are not adequately analyzed. A unique dataset of annual soil samples from a 55-year-old LTE was used 1) to evaluate the effects of a crop-pasture rotation on soil quality and crop productivity and 2) to provide robust statistical models to measure long-term changes in chemical soil quality parameters. Treatments were seven rotations, including CA or CPR with different proportions of pasture in the system (33%, 50%, or 66%). Soil organic carbon (SOC), total nitrogen (Ntot), exchangeable potassium (K) and soil pH have been determined annually since 1964, and the cumulative treatment effects were analyzed. Correlation structures showing the variance heterogeneity for the study years were tested for each parameter and condition. The longer the duration was of the pasture in the rotation, the slower the degradation was in the chemical soil quality. The CPR made a key contribution to sustainable agricultural diversification and intensification, leading to 30% higher crop yield... Presentar Todo |
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Palabras claves : |
CARBONO ORGÁNICO DEL SUELO; EXPERIMENTO A LARGO PLAZO; LONG-TERM EXPERIMENT; NO-TILLAGE; SOIL ORGANIC CARBON; SOIL PH; SOIL SURVEY; STAGGERED START; TOTAL NITROGEN. |
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Thesagro : |
ROTACIONES. |
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Asunto categoría : |
P33 Química y física del suelo |
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Marc : |
LEADER 03052naa a2200301 a 4500
001 1060335
005 2022-04-27
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1016/j.agee.2019.106710$2DOI
100 1 $aGRAHMANN, K.
245 $aLong-term observations in contrasting crop-pasture rotations over half a century$bStatistical analysis of chemical soil properties and implications for soil sampling frequency.$h[electronic resource]
260 $c2020
500 $aArticle history: Received 12 April 2019/Received in revised form 1 October 2019/Accepted 5 October 2019 /Available online 21 October 2019.
520 $aAbstract: Continuous agriculture (CA) has led to sustainability problems linked with production decreases, environmental contamination, crop failure and soil degradation in many regions of the world. Crop-pasture rotations (CPR) are management alternatives that contribute to environmental sustainability and productive diversification. Long-term experiments (LTE) play a major role in evaluations of the impact of different management practices on soil quality. However, the results can be misleading if the data are not adequately analyzed. A unique dataset of annual soil samples from a 55-year-old LTE was used 1) to evaluate the effects of a crop-pasture rotation on soil quality and crop productivity and 2) to provide robust statistical models to measure long-term changes in chemical soil quality parameters. Treatments were seven rotations, including CA or CPR with different proportions of pasture in the system (33%, 50%, or 66%). Soil organic carbon (SOC), total nitrogen (Ntot), exchangeable potassium (K) and soil pH have been determined annually since 1964, and the cumulative treatment effects were analyzed. Correlation structures showing the variance heterogeneity for the study years were tested for each parameter and condition. The longer the duration was of the pasture in the rotation, the slower the degradation was in the chemical soil quality. The CPR made a key contribution to sustainable agricultural diversification and intensification, leading to 30% higher crop yields and 19% and 14% greater SOC and Ntot concentrations, respectively, compared with CA. This LTE played a major role in the identification of strategies to increase soil fertility with diversified crop rotations through pasture integration, and statistically robust results were obtained that demonstrate the significance of frequent soil surveying over the long run.
650 $aROTACIONES
653 $aCARBONO ORGÁNICO DEL SUELO
653 $aEXPERIMENTO A LARGO PLAZO
653 $aLONG-TERM EXPERIMENT
653 $aNO-TILLAGE
653 $aSOIL ORGANIC CARBON
653 $aSOIL PH
653 $aSOIL SURVEY
653 $aSTAGGERED START
653 $aTOTAL NITROGEN
700 1 $aRUBIO, V.
700 1 $aTERRA, J.A.
700 1 $aQUINCKE, A.
773 $tAgriculture, Ecosystems and Environment, 1 January 2020, Volume 287, Article number 106710. OPEN ACCESS. Doi: https://doi.org/10.1016/j.agee.2019.106710
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INIA La Estanzuela (LE) |
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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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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Treinta y Tres. |
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Fecha actual : |
10/09/2014 |
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Actualizado : |
11/11/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
B - 3 |
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Autor : |
BANCHERO, G.; VÁZQUEZ, A.; VERA, M.; QUINTANS, G. |
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Afiliación : |
GEORGGET ELIZABETH BANCHERO HUNZIKER, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; JORGE ANDRES VAZQUEZ TEXEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MAXIMO RAUL VERA LOPEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; QUINTANS ILARIA, G., Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Adding condensed tannins to the diet increases ovulation rate in sheep. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Animal Production Science, v. 52, no. 9, p. 853-856, 2012. |
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ISSN : |
1836-0939. |
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DOI : |
10.1071/AN11333. |
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Idioma : |
Inglés |
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Notas : |
Article history:Received 3 December 2011/Accepted 5 March 2012./Published online 16 July 2012. |
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Contenido : |
Abstract:
The objective of the present study was to investigate whether adding condensed tannins (T) to the diet of sheep increases ovulation rate (OR). In all, 281 mature Polwarth ewes (49.9 #1; 6.0 kg and body condition score (BCS) of 2.02 #1; 0.24 units) were heat-synchronised (oestrus = Day 1) and sorted in the following four treatment diets: (1) native pasture alone (82.6 g of CP and 8.4 MJ metabolisable energy (ME)/kg DM) (NP; n = 70); (2) native pasture (NP) plus a supplement of 0.45 kg of soybean meal (S) from Day 10 to Day 14 (NP+S; n = 71); (3) NP plus a supplement of 0.45 kg S and 25 g of T, to get an estimated concentration of T in the diet of 1.5% (NP+S+1.5T; n = 69); and (4) NP plus a supplement of 0.45 kg S and 42 g of T, to get a concentration of T of 2.5% (NP+S+2.5T; n = 71). OR was measured 8 days after the second heat by rectal ultrasound (Day 25). The estimated consumption of crude protein (CP) during the supplementation period was 129, 261, 237 and 200 g/ewe.day for NP, NP+S, NP+S+1.5T and NP+S+2.5T ewes, respectively. NP+S+1.5T ewes had an OR of 1.90, which was higher (P < 0.05) than those for NP+S+2.5T and NP+S ewes (1.68 and 1.70, respectively). All supplemented ewes had a higher OR than did NP ewes (1.48, P < 0.05). Although NP+S+1.5T ewes ate less protein than did NP+S ewes, their OR was higher, as a result of a more effective use of the protein. The higher concentrations of 2.5% T in the diet might have not evoked a response in OR. |
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Palabras claves : |
INCREMENTO DE LA TASA OVULATORIA; NATIVE PASTURE; PROTEIN; SCHINOPSIS BALANSEA; SUPLEMENTACIÓN CON TANINOS; SUPLEMENTACIÓN PROTEICA; TANINOS CONDENSADOS DE QUEBRACHO; ULTRASOUND. |
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Thesagro : |
HARINA DE SOJA; OVINOS; PASTURA NATURAL; PREÑEZ DE OVINOS; TANINOS; TASA OVULATORIA. |
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Asunto categoría : |
L52 Fisiología Animal- Crecimiento y desarrollo
L53 Fisiología Animal - Reproducción |
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Marc : |
LEADER 02593naa a2200361 a 4500
001 1050184
005 2019-11-11
008 2012 bl uuuu u00u1 u #d
022 $a1836-0939.
024 7 $a10.1071/AN11333.$2DOI
100 1 $aBANCHERO, G.
245 $aAdding condensed tannins to the diet increases ovulation rate in sheep.$h[electronic resource]
260 $c2012
500 $aArticle history:Received 3 December 2011/Accepted 5 March 2012./Published online 16 July 2012.
520 $aAbstract: The objective of the present study was to investigate whether adding condensed tannins (T) to the diet of sheep increases ovulation rate (OR). In all, 281 mature Polwarth ewes (49.9 #1; 6.0 kg and body condition score (BCS) of 2.02 #1; 0.24 units) were heat-synchronised (oestrus = Day 1) and sorted in the following four treatment diets: (1) native pasture alone (82.6 g of CP and 8.4 MJ metabolisable energy (ME)/kg DM) (NP; n = 70); (2) native pasture (NP) plus a supplement of 0.45 kg of soybean meal (S) from Day 10 to Day 14 (NP+S; n = 71); (3) NP plus a supplement of 0.45 kg S and 25 g of T, to get an estimated concentration of T in the diet of 1.5% (NP+S+1.5T; n = 69); and (4) NP plus a supplement of 0.45 kg S and 42 g of T, to get a concentration of T of 2.5% (NP+S+2.5T; n = 71). OR was measured 8 days after the second heat by rectal ultrasound (Day 25). The estimated consumption of crude protein (CP) during the supplementation period was 129, 261, 237 and 200 g/ewe.day for NP, NP+S, NP+S+1.5T and NP+S+2.5T ewes, respectively. NP+S+1.5T ewes had an OR of 1.90, which was higher (P < 0.05) than those for NP+S+2.5T and NP+S ewes (1.68 and 1.70, respectively). All supplemented ewes had a higher OR than did NP ewes (1.48, P < 0.05). Although NP+S+1.5T ewes ate less protein than did NP+S ewes, their OR was higher, as a result of a more effective use of the protein. The higher concentrations of 2.5% T in the diet might have not evoked a response in OR.
650 $aHARINA DE SOJA
650 $aOVINOS
650 $aPASTURA NATURAL
650 $aPREÑEZ DE OVINOS
650 $aTANINOS
650 $aTASA OVULATORIA
653 $aINCREMENTO DE LA TASA OVULATORIA
653 $aNATIVE PASTURE
653 $aPROTEIN
653 $aSCHINOPSIS BALANSEA
653 $aSUPLEMENTACIÓN CON TANINOS
653 $aSUPLEMENTACIÓN PROTEICA
653 $aTANINOS CONDENSADOS DE QUEBRACHO
653 $aULTRASOUND
700 1 $aVÁZQUEZ, A.
700 1 $aVERA, M.
700 1 $aQUINTANS, G.
773 $tAnimal Production Science$gv. 52, no. 9, p. 853-856, 2012.
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