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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
27/08/2020 |
Actualizado : |
21/05/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
ZARZA, R.; REBUFFO, M.; LA MANNA, A.; BALZARINI, M. |
Afiliación : |
RODRIGO TABARE ZARZA FUENTES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MONICA IRENE REBUFFO GFELLER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALEJANDRO FRANCISCO LA MANNA ALONSO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MÓNICA BALZARINI, Universidad Nacional de Córdoba (National University of Córdoba), School of Agricultural Sciences, Córdoba, Argentina. |
Título : |
Red clover (Trifolium pratense L.) seedling density in mixed pastures as predictor of annual yield. |
Fecha de publicación : |
2020 |
Fuente / Imprenta : |
Field Crops Research, 1 October 2020, Volumen 256, 107925. DOI: https://doi.org/10.1016/j.fcr.2020.107925 |
ISSN : |
0378-4290 |
DOI : |
10.1016/j.fcr.2020.107925 |
Idioma : |
Inglés |
Notas : |
Article history: Received 30 January 2020/ Revised 17 June 2020/ Accepted 27 July 2020/ Available online 15 August 2020.The field experiments were funded by INIA (the national agricultural research institute) (Project PA 010). The present work is a part of the thesis submitted by R. Zarza to the Postgraduate program of FCA-UNC.Corresponding author:E-mail addresses: rzarza@inia.org.uy (R. Zarza), monicarebuffo11@gmail.com (M. Rebuffo), alamanna@inia.org.uy (A. La Manna),mbalzari@agro.uncor.edu (M. Balzarini). |
Contenido : |
Abstract:
Biomass predictive models can be useful tools to design management strategies for mixed pastures of red clover (Trifolium pratense) with either grasses or herbs in intensive grazing systems. This paper proposes mixed regression models to predict the annual yield of two mixtures based on red clover seedling density (CSD) and environmental effects (low, intermediate, high-yield environments). Two mixtures of red clover with either chicory (Cichorium intybus) or prairie grass (Bromus catharticus) were sown in Uruguay in a multi-environment experiment with six sowing rates to generate varying levels of species seedling densities. The CSD was recorded at 3, 7 and 12 weeks after sowing (WS). Yield prediction models in the initial establishment year (Y1) and second-year (Y2) were fitted with CSD at the three count times. CSD increased proportionally to the sowing rates in all environments. The CSD, even at 3 WS, provided a good prediction of expected annual yield (error mean <15 %). The fitted models estimated the probability of exceeding the threshold of 10,000 kg DM ha?1 annual yield based on CSD observed at 3 WS in all three environments. There is a high probability of harvesting more than the threshold, even when the CSD at 3 WS is higher than 50 seedlings m-2 in the high-yield environment. Forage prediction models based on CSD, fitted for environments of different yield potential, will contribute to improved management of mixed pastures in intensive grazing systems. |
Palabras claves : |
BLUP OF ENVIRONMENTAL EFFECTS; CHICORY; FORAGE YIELD; GRASSLAND; PLANT STAND; PRAIRIE GRASS; RENDIMIENTO DE FORRAJE. |
Thesagro : |
ACHICORIA; FORRAJES; PASTURAS; TREBOL ROJO; TRIFOLIUM PRATENSE. |
Asunto categoría : |
F01 Cultivo |
Marc : |
LEADER 02996naa a2200337 a 4500 001 1061287 005 2021-05-21 008 2020 bl uuuu u00u1 u #d 022 $a0378-4290 024 7 $a10.1016/j.fcr.2020.107925$2DOI 100 1 $aZARZA, R. 245 $aRed clover (Trifolium pratense L.) seedling density in mixed pastures as predictor of annual yield.$h[electronic resource] 260 $c2020 500 $aArticle history: Received 30 January 2020/ Revised 17 June 2020/ Accepted 27 July 2020/ Available online 15 August 2020.The field experiments were funded by INIA (the national agricultural research institute) (Project PA 010). The present work is a part of the thesis submitted by R. Zarza to the Postgraduate program of FCA-UNC.Corresponding author:E-mail addresses: rzarza@inia.org.uy (R. Zarza), monicarebuffo11@gmail.com (M. Rebuffo), alamanna@inia.org.uy (A. La Manna),mbalzari@agro.uncor.edu (M. Balzarini). 520 $aAbstract: Biomass predictive models can be useful tools to design management strategies for mixed pastures of red clover (Trifolium pratense) with either grasses or herbs in intensive grazing systems. This paper proposes mixed regression models to predict the annual yield of two mixtures based on red clover seedling density (CSD) and environmental effects (low, intermediate, high-yield environments). Two mixtures of red clover with either chicory (Cichorium intybus) or prairie grass (Bromus catharticus) were sown in Uruguay in a multi-environment experiment with six sowing rates to generate varying levels of species seedling densities. The CSD was recorded at 3, 7 and 12 weeks after sowing (WS). Yield prediction models in the initial establishment year (Y1) and second-year (Y2) were fitted with CSD at the three count times. CSD increased proportionally to the sowing rates in all environments. The CSD, even at 3 WS, provided a good prediction of expected annual yield (error mean <15 %). The fitted models estimated the probability of exceeding the threshold of 10,000 kg DM ha?1 annual yield based on CSD observed at 3 WS in all three environments. There is a high probability of harvesting more than the threshold, even when the CSD at 3 WS is higher than 50 seedlings m-2 in the high-yield environment. Forage prediction models based on CSD, fitted for environments of different yield potential, will contribute to improved management of mixed pastures in intensive grazing systems. 650 $aACHICORIA 650 $aFORRAJES 650 $aPASTURAS 650 $aTREBOL ROJO 650 $aTRIFOLIUM PRATENSE 653 $aBLUP OF ENVIRONMENTAL EFFECTS 653 $aCHICORY 653 $aFORAGE YIELD 653 $aGRASSLAND 653 $aPLANT STAND 653 $aPRAIRIE GRASS 653 $aRENDIMIENTO DE FORRAJE 700 1 $aREBUFFO, M. 700 1 $aLA MANNA, A. 700 1 $aBALZARINI, M. 773 $tField Crops Research, 1 October 2020, Volumen 256, 107925. DOI: https://doi.org/10.1016/j.fcr.2020.107925
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INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
21/02/2014 |
Actualizado : |
23/01/2019 |
Tipo de producción científica : |
Documentos |
Autor : |
NUÑEZ, S.; SCATONI, I.; CANESSA, S. |
Afiliación : |
SATURNINO NUÑEZ BUA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; IRIS SCATONI; SANTIAGO CANESSA. |
Título : |
Evaluación de atracticidas para el control de lagartitas en frutales. |
Fecha de publicación : |
2001 |
Fuente / Imprenta : |
In: INIA (Instituto Nacional de Investigación Agropecuaria); Universidad de la República (UdelaR)/ Facultad de Agronomía. Resultados experimentales en protección vegetal en frutales. Canelones (UY): INIA, 2001. |
Páginas : |
p. 28-31. |
Serie : |
(INIA Serie Actividades de Difusión; 272) |
ISSN : |
1688-9258 |
Idioma : |
Español |
Thesagro : |
CONTROL DE PLAGAS; CONTROL QUIMICO; MANZANA; PLAGAS. |
Asunto categoría : |
H10 Plagas de las plantas |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/12308/1/sad-272-p.28-31.pdf
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Marc : |
LEADER 00768naa a2200217 a 4500 001 1007079 005 2019-01-23 008 2001 bl uuuu u00u1 u #d 022 $a1688-9258 100 1 $aNUÑEZ, S. 245 $aEvaluación de atracticidas para el control de lagartitas en frutales. 260 $c2001 300 $ap. 28-31. 490 $a(INIA Serie Actividades de Difusión; 272) 650 $aCONTROL DE PLAGAS 650 $aCONTROL QUIMICO 650 $aMANZANA 650 $aPLAGAS 700 1 $aSCATONI, I. 700 1 $aCANESSA, S. 773 $tIn: INIA (Instituto Nacional de Investigación Agropecuaria); Universidad de la República (UdelaR)/ Facultad de Agronomía. Resultados experimentales en protección vegetal en frutales. Canelones (UY): INIA, 2001.
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