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| 4. |  | HAREAU, G.; NORTON, G.W.; MILLS, B.F.; PETERSON, E. Potential benefits of transgenic rice in Asia: A general equilibrium analysis. Quarterly Journal of International Agriculture, 2005, Volume 44, Issue 3, Pages 229-246. 2-s2.0-25144436574 Selected Paper # 118832 prepared for presentation at the Annual meeting of the American Agricultural Economics Association, Denver, Colorado, August 1-4, 2004.
This paper was partially supported by USDA-CSREES Grant No. 2001-52100-11250,...| Biblioteca(s): INIA Las Brujas. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
09/11/2022 |
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Actualizado : |
10/11/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
RAMA, G.; OYARZABAL, M.; CARDOZO, G.; LEZAMA, F.; BAEZA, S. |
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Afiliación : |
GONZALO RAMA, Universidad de la República (UDELAR), Facultad de Agronomía, Departamento de Sistemas Ambientales.; MARIANO OYARZABAL, Universidad de Buenos Aires, Faculta de Agronomía, IFEVA, CONICET, Argentina.; GERONIMO AGUSTIN CARDOZO CABANELAS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FELIPE LEZAMA, Universidad de la República (UDELAR), Facultad de Agronomía, Departamento de Sistemas Ambientales.; SANTIAGO BAEZA, Universidad de la República (UDELAR), Facultad de Agronomía, Departamento de Sistemas Ambientales. |
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Título : |
Legume overseeding along with P fertilization increase forage production of temperate natural grasslands. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Agronomy, 2022, volume 12, issue 10, e2507. OPEN ACCESS. doi: https://doi.org/10.3390/agronomy12102507 |
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DOI : |
10.3390/agronomy12102507 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 8 September 2022 / Revised: 6 October 2022 / Accepted: 8 October 2022 / Published: 14 October 2022. (This article belongs to the Special Issue Advance in Grassland Productivity and Sustainability). This is an open access article distributed under the Creative Commons Attribution License.
Correspondence: agonzalorama@gmail.com |
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Contenido : |
Legume overseeding along with P fertilization is a common practice used in natural temperate and subtropical grasslands to increase forage production. This practice has been evaluated at experimental plots but not at the paddocks level of commercial farms. The latter are realistic evaluation units to generate knowledge for livestock management. In this study, the enhanced vegetation index (EVI), a proxy of forage production, was used to evaluate the effect of this practice on grazed paddocks in Uruguay. Twenty paired paddocks under similar grazing conditions were selected with natural grassland (NG) and natural grassland with legume overseeding and P fertilization (NG-LP). Paired paddocks were compared in terms of EVI mean and its temporal variability. After nine years of the intensification practice, mean annual EVI of NG-LP was 4% higher than that of NG, while the mean winter?spring EVI of NG-LP was 7.5% higher. EVI intra- and inter-annual variability of NG-LP was 8?11% higher than that of NG. Additionally, forage production was estimated using a radiative transfer model. Differences between NG-LP and NG were amplified six to seven times. Legume overseeding along with P fertilization increased forage production in pastoral livestock paddocks, particularly in the period of forage deficit, while it also increased intra and inter-annual variability of forage production. |
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Palabras claves : |
FERTILIZACION FOSFATADA; FORAGE PRODUCTION; INTENSIFICATION; NATURAL GRASSLAND; SUBTROPICAL PASTURES. |
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Asunto categoría : |
F62 Fisiología de la planta - Crecimiento y desarrollo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16837/1/agronomy-12-02507-2022-Rama.pdf
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Marc : |
LEADER 02545naa a2200253 a 4500
001 1063715
005 2022-11-10
008 2022 bl uuuu u00u1 u #d
024 7 $a10.3390/agronomy12102507$2DOI
100 1 $aRAMA, G.
245 $aLegume overseeding along with P fertilization increase forage production of temperate natural grasslands.$h[electronic resource]
260 $c2022
500 $aArticle history: Received: 8 September 2022 / Revised: 6 October 2022 / Accepted: 8 October 2022 / Published: 14 October 2022. (This article belongs to the Special Issue Advance in Grassland Productivity and Sustainability). This is an open access article distributed under the Creative Commons Attribution License. Correspondence: agonzalorama@gmail.com
520 $aLegume overseeding along with P fertilization is a common practice used in natural temperate and subtropical grasslands to increase forage production. This practice has been evaluated at experimental plots but not at the paddocks level of commercial farms. The latter are realistic evaluation units to generate knowledge for livestock management. In this study, the enhanced vegetation index (EVI), a proxy of forage production, was used to evaluate the effect of this practice on grazed paddocks in Uruguay. Twenty paired paddocks under similar grazing conditions were selected with natural grassland (NG) and natural grassland with legume overseeding and P fertilization (NG-LP). Paired paddocks were compared in terms of EVI mean and its temporal variability. After nine years of the intensification practice, mean annual EVI of NG-LP was 4% higher than that of NG, while the mean winter?spring EVI of NG-LP was 7.5% higher. EVI intra- and inter-annual variability of NG-LP was 8?11% higher than that of NG. Additionally, forage production was estimated using a radiative transfer model. Differences between NG-LP and NG were amplified six to seven times. Legume overseeding along with P fertilization increased forage production in pastoral livestock paddocks, particularly in the period of forage deficit, while it also increased intra and inter-annual variability of forage production.
653 $aFERTILIZACION FOSFATADA
653 $aFORAGE PRODUCTION
653 $aINTENSIFICATION
653 $aNATURAL GRASSLAND
653 $aSUBTROPICAL PASTURES
700 1 $aOYARZABAL, M.
700 1 $aCARDOZO, G.
700 1 $aLEZAMA, F.
700 1 $aBAEZA, S.
773 $tAgronomy, 2022, volume 12, issue 10, e2507. OPEN ACCESS. doi: https://doi.org/10.3390/agronomy12102507
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