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| 9. |  | BERRUETA, C.; GARCIA, C.; GRASSO, R. Sodium accumulation vs. nitrate leaching under different fertigation regimes in greenhouse soils in South Uruguay. [Acumulación de sodio vs. lavado de nitrógeno en suelos bajo invernadero en el sur de Uruguay con diferentes regímenes de fertirriego.]. [Acúmulo de sódio vs. lixiviação de nitrogênio sob solos de estufas no sul do Uruguai com diferentes regimes de fertirrigação.]. Advances in Water in Agroscience. Irrigation and water management. Agrociencia Uruguay, 2023, Vol.27(NE1), e1189. https://doi.org/10.31285/AGRO.27.1189 -- OPEN ACCESS. Article history: Received 24 April 2023; Accepted 21 September 2023; Published 06 February 2024. -- Editor: Álvaro Otero, Instituto Nacional de Investigación Agropecuaria (INIA), Salto, Uruguay. -- Correspondence: Cecilia Berrueta,...| Biblioteca(s): INIA Las Brujas. |
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| 19. | | OTERO, A.; GOÑI, C.; GRASSO, R.; MACHADO, D.; RIVAS, F. Water productivity associated to the planting system in young Nadorcott mandarin plants. [Productividad del agua asociada al sistema de plantación en plantas jóvenes de mandarina Nadorcott.]. [Produtividade hídrica em relação ao sistema de plantio em plantas jovens de tangerineira Nadorcott.]. Advances in Water in Agroscience. Irrigation and water management. Agrociencia Uruguay, 2023, Vol.27(NE1), e1188. https://doi.org/10.31285/AGRO.27.1188 -- OPEN ACCESS. Article history: Received 29 April 2023; Accepted 23 August 2023; Published 06 February 2024. -- Editor: Lucía Puppo, Universidad de la República, Montevideo, Uruguay. -- Correspondence: Álvaro Otero, aotero@inia.org.uy -- License: This...| Biblioteca(s): INIA Las Brujas. |
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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
27/08/2020 |
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Actualizado : |
27/08/2020 |
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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 : |
GRASSO, R.; DE SOUZA, R.; PEÑA-FLEITAS, M.T.; GALLARDO, M.; THOMPSON, R.; PADILLA, F. |
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Afiliación : |
RAFAEL GILLSON GRASSO RODRIGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROMINA DE SOUZA, Department of Agronomy, University of Almeria, Almería, Spain; M. TERESA PEÑA-FLEITAS, bDepartment of Agronomy, University of Almeria, Almería, Spain; MARISA GALLARDO, Department of Agronomy, University of Almeria, Almería, Spain; CIAIMBITAL Research Centre for Mediterranean Intensive Agrosystems and Agrifood Biotechnology, University of Almeria, Almería, Spain; RODNEY B. THOMPSON, Department of Agronomy, University of Almeria, Almería, Spain; CIAIMBITAL Research Centre for Mediterranean Intensive Agrosystems and Agrifood Biotechnology, University of Almeria, Almería, Spain; FRANCISCO M. PADILLA, Department of Agronomy, University of Almeria, Almería, Spain; CIAIMBITAL Research Centre for Mediterranean Intensive Agrosystems and Agrifood Biotechnology, University of Almeria, Almería, Spain. |
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Título : |
Root and crop responses of sweet pepper (Capsicum annuum) to increasing N fertilization . |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Scientia Horticulturae, 17 November 2020, Volume 273, Article number 109645. DOI: https://doi.org/10.1016/j.scienta.2020.109645 |
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ISSN : |
0304-4238 |
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DOI : |
10.1016/j.scienta.2020.109645 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 5 May 2020; Received in revised form 5 August 2020; Accepted 7 August 2020; Available online 18 August 2020.
This work was supported by the Spanish Ministry of Economy and Competitiveness through project AGL2015-67076-R and grant numbers BES-2016-076706 (Romina de Souza) and RYC-2014-15815 (Francisco M. Padilla). Rafael Grasso was supported by INIA, Uruguay .
Corresponding author: Rafael Grassio. E-mail address: rgrasso@inia.org.uy |
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Contenido : |
ABSTRACT.
Rooting is the mechanism by which roots explore soil resources to nourish and anchor the plant to the ground. In vegetable crops, nitrogen (N) application exceeds crop demand due to over fertilization, thereby contributing to N losses through nitrate (NO3−) leaching. To improve N fertilization, knowledge of the response of rooting behaviour and root dynamics to N fertilization will be very useful. In this study, the effect of rates of N application on rooting were assessed in two sweet pepper (Capsicum annuum) crops grown in an artificially layered soil, with sand mulch, in Almería (south-eastern Spain). The treatments were very deficient, conventional, and very excessive in terms of N application. Yield, crop N absorption and dry matter of the shoot part were determined. Statistically significant differences were found in shoot dry matter between the very deficient N, compared to conventional and very excessive N. Root length density decreased with increasing application of N, with significantly higher density in the very deficient N application. In relation to depth, root length density in the very deficient N was nearly double (in the 2016 crop) and triple (in the 2017 crop) than in conventional N in the sand mulch layer (0?0.10 m depth). In contrast, root length density in the very deficient N treatment was in general lower than in conventional and very excessive N application in the 0.10?0.20 m layer. In the deeper layers, 0.20?0.30 and 0.30?0.40 m, no effects of N treatments on root length density were found. In relative terms, plants subjected to very deficient N treatment allocated relatively more roots in the sand mulch layer and less roots in the 0.10?0.20 m layer than when subjected to conventional and very excessive N. Root length density was negatively correlated with shoot dry matter, crop N absorption, yield and residual soil mineral N at the end of the crops. Overall, results of the present work suggest that conventional and very excessive N application maximized the development of the shoot part and crop yield and diminished root length density, particularly in the sand mulch layer (0?0.10 m depth). A higher root length density was not sufficient under very deficient N in terms of matching dry matter and yield of the conventional N treatment.
© 2020 Elsevier B.V. MenosABSTRACT.
Rooting is the mechanism by which roots explore soil resources to nourish and anchor the plant to the ground. In vegetable crops, nitrogen (N) application exceeds crop demand due to over fertilization, thereby contributing to N losses through nitrate (NO3−) leaching. To improve N fertilization, knowledge of the response of rooting behaviour and root dynamics to N fertilization will be very useful. In this study, the effect of rates of N application on rooting were assessed in two sweet pepper (Capsicum annuum) crops grown in an artificially layered soil, with sand mulch, in Almería (south-eastern Spain). The treatments were very deficient, conventional, and very excessive in terms of N application. Yield, crop N absorption and dry matter of the shoot part were determined. Statistically significant differences were found in shoot dry matter between the very deficient N, compared to conventional and very excessive N. Root length density decreased with increasing application of N, with significantly higher density in the very deficient N application. In relation to depth, root length density in the very deficient N was nearly double (in the 2016 crop) and triple (in the 2017 crop) than in conventional N in the sand mulch layer (0?0.10 m depth). In contrast, root length density in the very deficient N treatment was in general lower than in conventional and very excessive N application in the 0.10?0.20 m layer. In the deeper layers, 0.20?0.30 and 0.30?0.40 m, no e... Presentar Todo |
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Palabras claves : |
Fertilization; Nitrogen management; Root density; Soil layer; Vegetable crops. |
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Thesagro : |
CAPSICUM ANNUUM. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 03692naa a2200289 a 4500
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022 $a0304-4238
024 7 $a10.1016/j.scienta.2020.109645$2DOI
100 1 $aGRASSO, R.
245 $aRoot and crop responses of sweet pepper (Capsicum annuum) to increasing N fertilization .$h[electronic resource]
260 $c2020
500 $aArticle history: Received 5 May 2020; Received in revised form 5 August 2020; Accepted 7 August 2020; Available online 18 August 2020. This work was supported by the Spanish Ministry of Economy and Competitiveness through project AGL2015-67076-R and grant numbers BES-2016-076706 (Romina de Souza) and RYC-2014-15815 (Francisco M. Padilla). Rafael Grasso was supported by INIA, Uruguay . Corresponding author: Rafael Grassio. E-mail address: rgrasso@inia.org.uy
520 $aABSTRACT. Rooting is the mechanism by which roots explore soil resources to nourish and anchor the plant to the ground. In vegetable crops, nitrogen (N) application exceeds crop demand due to over fertilization, thereby contributing to N losses through nitrate (NO3−) leaching. To improve N fertilization, knowledge of the response of rooting behaviour and root dynamics to N fertilization will be very useful. In this study, the effect of rates of N application on rooting were assessed in two sweet pepper (Capsicum annuum) crops grown in an artificially layered soil, with sand mulch, in Almería (south-eastern Spain). The treatments were very deficient, conventional, and very excessive in terms of N application. Yield, crop N absorption and dry matter of the shoot part were determined. Statistically significant differences were found in shoot dry matter between the very deficient N, compared to conventional and very excessive N. Root length density decreased with increasing application of N, with significantly higher density in the very deficient N application. In relation to depth, root length density in the very deficient N was nearly double (in the 2016 crop) and triple (in the 2017 crop) than in conventional N in the sand mulch layer (0?0.10 m depth). In contrast, root length density in the very deficient N treatment was in general lower than in conventional and very excessive N application in the 0.10?0.20 m layer. In the deeper layers, 0.20?0.30 and 0.30?0.40 m, no effects of N treatments on root length density were found. In relative terms, plants subjected to very deficient N treatment allocated relatively more roots in the sand mulch layer and less roots in the 0.10?0.20 m layer than when subjected to conventional and very excessive N. Root length density was negatively correlated with shoot dry matter, crop N absorption, yield and residual soil mineral N at the end of the crops. Overall, results of the present work suggest that conventional and very excessive N application maximized the development of the shoot part and crop yield and diminished root length density, particularly in the sand mulch layer (0?0.10 m depth). A higher root length density was not sufficient under very deficient N in terms of matching dry matter and yield of the conventional N treatment. © 2020 Elsevier B.V.
650 $aCAPSICUM ANNUUM
653 $aFertilization
653 $aNitrogen management
653 $aRoot density
653 $aSoil layer
653 $aVegetable crops
700 1 $aDE SOUZA, R.
700 1 $aPEÑA-FLEITAS, M.T.
700 1 $aGALLARDO, M.
700 1 $aTHOMPSON, R.
700 1 $aPADILLA, F.
773 $tScientia Horticulturae, 17 November 2020, Volume 273, Article number 109645. DOI: https://doi.org/10.1016/j.scienta.2020.109645
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