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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 La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
Fecha actual : |
21/02/2014 |
Actualizado : |
17/06/2021 |
Tipo de producción científica : |
Documentos |
Autor : |
MONKS, D.; ARBOLEYA, J.; GILSANZ, J.C. |
Afiliación : |
JORGE EDUARDO ARBOLEYA DUFOUR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JUAN CARLOS GILSANZ MARTINEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Manejo de malezas en sistemas hortícolas de mínimo laboreo. |
Fecha de publicación : |
2000 |
Fuente / Imprenta : |
In: INIA Las Brujas. Manejo conservacionista de los suelos en horticultura. Taller, 14 y 15 de marzo 2000, INIA Las Brujas. Canelones (UY), 2000. |
Páginas : |
p. 78-82 |
Idioma : |
Español |
Notas : |
Traducción: Jorge Arboleya y Juan Carlos Gilsanz. |
Contenido : |
La mayoría de los cultivos hortícolas son de alto valor económico y corto ciclo, esto requiere un control intensivo de malezas. Dado que la mayoría de las hortalizas maduran rápidamente y cosechas de primor incrementan las ganancias, es que cortos periodos de stress provocados por las malezas son menos tolerados por los cultivos hmtícolas comparados con los cultivos extensivos de ciclo largo como el maíz y el algodón. Debido a que las hortalizas son cultivos de alto valor económico, la reducción en calidad y rendimíento debido al efecto de las malezas, presenta un gran impacto comparado con los cultivos extensivos. |
Thesagro : |
ESCARDA; MALEZAS; PLANTAS NOCIVAS. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15693/1/taller-manejo-suelos-2000.pdf;#page=80
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Marc : |
LEADER 01290naa a2200205 a 4500 001 1010640 005 2021-06-17 008 2000 bl uuuu u00u1 u #d 100 1 $aMONKS, D. 245 $aManejo de malezas en sistemas hortícolas de mínimo laboreo. 260 $c2000 300 $ap. 78-82 500 $aTraducción: Jorge Arboleya y Juan Carlos Gilsanz. 520 $aLa mayoría de los cultivos hortícolas son de alto valor económico y corto ciclo, esto requiere un control intensivo de malezas. Dado que la mayoría de las hortalizas maduran rápidamente y cosechas de primor incrementan las ganancias, es que cortos periodos de stress provocados por las malezas son menos tolerados por los cultivos hmtícolas comparados con los cultivos extensivos de ciclo largo como el maíz y el algodón. Debido a que las hortalizas son cultivos de alto valor económico, la reducción en calidad y rendimíento debido al efecto de las malezas, presenta un gran impacto comparado con los cultivos extensivos. 650 $aESCARDA 650 $aMALEZAS 650 $aPLANTAS NOCIVAS 700 1 $aARBOLEYA, J. 700 1 $aGILSANZ, J.C. 773 $tIn: INIA Las Brujas. Manejo conservacionista de los suelos en horticultura. Taller, 14 y 15 de marzo 2000, INIA Las Brujas. Canelones (UY), 2000.
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