|
|
Registro completo
|
Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
21/02/2014 |
Actualizado : |
15/06/2017 |
Autor : |
MORON, A. |
Afiliación : |
DAVID ALEJANDRO MORON YACOEL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Dinámica del nitrógeno en rotaciones. |
Fecha de publicación : |
1996 |
Fuente / Imprenta : |
ln: Curso de actualización en fertilidad de suelos, 6-8 Junio, Montevideo, 1996. Montevideo: Facultad de Agronomía. Instituto Clemente Estable, 1996. |
Páginas : |
p. 3-12 |
Idioma : |
Español |
Contenido : |
Apartir de los años 60, en forma progresiva, las pasturas convencionales fueron introduciéndose y formando parte de los esquemas productivos agrícola-ganaderos y lecheros. En términos generales, en los sistemas agrícola-ganaderos, las pasturas de 3-4 años de duración rotan con agricultura por un período similar. En los sistemas
lecheros, las pasturas tienden a permanecer 2-3 años rotando con verdeos anuales de verano e invierno para pastoreo directo o reservas forrajeras. En ambos sistemas productivos, las pasturas incluyen leguminosas solas o en mezclas con gramíneas. Los fertilizantes utilizados en estos sistemas son básicamente nitrógeno (N) y fósforo
(P). La importancia práctica del N en los sistemas de rotación está dada por varias razones: alto efecto en los niveles de rendimiento de cultivos y pasturas; Importante peso relativo de los fertilizantes nitrogenados en la estructura de costos; Impacto ambiental, ejemplo contaminación de napas de agua con nitratos afectando el uso de agua para consumo humano; El ciclo del N en el sistema suelo-planta-animal es altamente complejo y variable.
El presente artículo tiene como objetivo revisar la información nacional mas relevante en la dinámica de nitrógeno para los sistemas de rotación con pasturas. |
Thesagro : |
MINERALIZACION; NITROGENO; ROTACION DE CULTIVOS. |
Asunto categoría : |
P30 Ciencia del suelo y manejo del suelo |
Marc : |
LEADER 01817naa a2200169 a 4500 001 1020799 005 2017-06-15 008 1996 bl uuuu u00u1 u #d 100 1 $aMORON, A. 245 $aDinámica del nitrógeno en rotaciones. 260 $c1996 300 $ap. 3-12 520 $aApartir de los años 60, en forma progresiva, las pasturas convencionales fueron introduciéndose y formando parte de los esquemas productivos agrícola-ganaderos y lecheros. En términos generales, en los sistemas agrícola-ganaderos, las pasturas de 3-4 años de duración rotan con agricultura por un período similar. En los sistemas lecheros, las pasturas tienden a permanecer 2-3 años rotando con verdeos anuales de verano e invierno para pastoreo directo o reservas forrajeras. En ambos sistemas productivos, las pasturas incluyen leguminosas solas o en mezclas con gramíneas. Los fertilizantes utilizados en estos sistemas son básicamente nitrógeno (N) y fósforo (P). La importancia práctica del N en los sistemas de rotación está dada por varias razones: alto efecto en los niveles de rendimiento de cultivos y pasturas; Importante peso relativo de los fertilizantes nitrogenados en la estructura de costos; Impacto ambiental, ejemplo contaminación de napas de agua con nitratos afectando el uso de agua para consumo humano; El ciclo del N en el sistema suelo-planta-animal es altamente complejo y variable. El presente artículo tiene como objetivo revisar la información nacional mas relevante en la dinámica de nitrógeno para los sistemas de rotación con pasturas. 650 $aMINERALIZACION 650 $aNITROGENO 650 $aROTACION DE CULTIVOS 773 $tln: Curso de actualización en fertilidad de suelos, 6-8 Junio, Montevideo, 1996. Montevideo: Facultad de Agronomía. Instituto Clemente Estable, 1996.
Descargar
Esconder MarcPresentar Marc Completo |
Registro original : |
INIA Tacuarembó (TBO) |
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
Registro completo
|
Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
23/10/2019 |
Actualizado : |
23/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
CONIBERTI, A.; FERRARI, V.; DISEGNA, E.; LAKSO, A.N.; GARCÍA PETILLO, M. |
Afiliación : |
ANDRES CONIBERTI MUNDY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; VIRGINIA PAULINA FERRARI MORENA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; EDGARDO JOSE DISEGNA LIGUORI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; A.N. LAKSO, Department of Horticulture, Cornell University, USA; M. GARCÍA PETILLO, Departamento de Suelos y Aguas, Facultad de Agronom??a, UdelaR, Uruguay. |
Título : |
Interactions of under-trellis cover crops and planting density to achieve vine balance in a temperate humid climate (Conference Paper). |
Fecha de publicación : |
2017 |
Fuente / Imprenta : |
Acta Horticulturae, 8 November 2017, 1177, p. 339-348. |
Serie : |
(Acta Horticulturae; 1177) |
ISBN : |
978-94-62611-73-3 |
ISSN : |
0567-7572 (print) 2406-6168 (electronic) |
DOI : |
10.17660/ActaHortic.2017.1177.49 |
Idioma : |
Inglés |
Notas : |
Article history: Published 8 November 2017. In: Acta Horticulturae (ISHS) 1177: International Symposium on Physiological Principles and Their Application to Fruit Production. Editor: T. Robinson. |
Contenido : |
ABSTRACT.
The goal of our study was to improve 'Tannat' grape and wine composition, by achieving vine balance. We evaluated a new grape-growing paradigm for Uruguayan conditions that include unpredictable periods of water deficit or excess in nonirrigated vineyards and eliminates competition from cover crops. We used undertrellis cover crops (UTCC) to limit vine water availability, reduce vine growth rate and final canopy size. However, to avoid excessive vine water stress due to the UTCC competition, irrigation was used during water deficit periods. This strategy was tested in combination with variable planting density to optimize vine vigor control in our environment over two growing seasons in southern Uruguay. Two factors were evaluated in a split-split plot experiment with five replicates. Treatments were: UTCC (full cover of the vineyard soil with tall fescue) versus conventional alleyway tall fescue with 1.0 m wide weed-free strip under the trellis, and two spacings between vines (0.8 vs. 1.5 m). Deficit drip irrigation was provided at mid-day stem water potential (SWP) thresholds of -0.9 MPa early and -1.1 MPa later in season. Shoot growth rate, SWP, berry size and berry composition (Brix, organic acids, total anthocyanin) were monitored over the season as well as final yield, cluster and pruning weights. Preliminary results showed that UTCC regulated vine vegetative growth and final canopy size, reduced berry size, cluster weight and bunch-rot incidence as well as increased tartaric/malic ratio, Brix and anthocyanin concentration in grapes. The combination of UTCC and 1.5 m inter-row spacing led to below-optimal shoot growth. The use of such multiple techniques shows promise for achieving vine balance in high-capacity conditions.
© 2017 ISHS. MenosABSTRACT.
The goal of our study was to improve 'Tannat' grape and wine composition, by achieving vine balance. We evaluated a new grape-growing paradigm for Uruguayan conditions that include unpredictable periods of water deficit or excess in nonirrigated vineyards and eliminates competition from cover crops. We used undertrellis cover crops (UTCC) to limit vine water availability, reduce vine growth rate and final canopy size. However, to avoid excessive vine water stress due to the UTCC competition, irrigation was used during water deficit periods. This strategy was tested in combination with variable planting density to optimize vine vigor control in our environment over two growing seasons in southern Uruguay. Two factors were evaluated in a split-split plot experiment with five replicates. Treatments were: UTCC (full cover of the vineyard soil with tall fescue) versus conventional alleyway tall fescue with 1.0 m wide weed-free strip under the trellis, and two spacings between vines (0.8 vs. 1.5 m). Deficit drip irrigation was provided at mid-day stem water potential (SWP) thresholds of -0.9 MPa early and -1.1 MPa later in season. Shoot growth rate, SWP, berry size and berry composition (Brix, organic acids, total anthocyanin) were monitored over the season as well as final yield, cluster and pruning weights. Preliminary results showed that UTCC regulated vine vegetative growth and final canopy size, reduced berry size, cluster weight and bunch-rot incidence as well as i... Presentar Todo |
Palabras claves : |
BOTRYTIS BUNCH ROT; TANNAT; VETETATIVE GROWTH. |
Thesagro : |
VID. |
Asunto categoría : |
-- |
Marc : |
LEADER 02851naa a2200277 a 4500 001 1060337 005 2019-10-23 008 2017 bl uuuu u00u1 u #d 020 $a978-94-62611-73-3 022 $a0567-7572 (print) 2406-6168 (electronic) 024 7 $a10.17660/ActaHortic.2017.1177.49$2DOI 100 1 $aCONIBERTI, A. 245 $aInteractions of under-trellis cover crops and planting density to achieve vine balance in a temperate humid climate (Conference Paper).$h[electronic resource] 260 $c2017 490 $a(Acta Horticulturae; 1177) 500 $aArticle history: Published 8 November 2017. In: Acta Horticulturae (ISHS) 1177: International Symposium on Physiological Principles and Their Application to Fruit Production. Editor: T. Robinson. 520 $aABSTRACT. The goal of our study was to improve 'Tannat' grape and wine composition, by achieving vine balance. We evaluated a new grape-growing paradigm for Uruguayan conditions that include unpredictable periods of water deficit or excess in nonirrigated vineyards and eliminates competition from cover crops. We used undertrellis cover crops (UTCC) to limit vine water availability, reduce vine growth rate and final canopy size. However, to avoid excessive vine water stress due to the UTCC competition, irrigation was used during water deficit periods. This strategy was tested in combination with variable planting density to optimize vine vigor control in our environment over two growing seasons in southern Uruguay. Two factors were evaluated in a split-split plot experiment with five replicates. Treatments were: UTCC (full cover of the vineyard soil with tall fescue) versus conventional alleyway tall fescue with 1.0 m wide weed-free strip under the trellis, and two spacings between vines (0.8 vs. 1.5 m). Deficit drip irrigation was provided at mid-day stem water potential (SWP) thresholds of -0.9 MPa early and -1.1 MPa later in season. Shoot growth rate, SWP, berry size and berry composition (Brix, organic acids, total anthocyanin) were monitored over the season as well as final yield, cluster and pruning weights. Preliminary results showed that UTCC regulated vine vegetative growth and final canopy size, reduced berry size, cluster weight and bunch-rot incidence as well as increased tartaric/malic ratio, Brix and anthocyanin concentration in grapes. The combination of UTCC and 1.5 m inter-row spacing led to below-optimal shoot growth. The use of such multiple techniques shows promise for achieving vine balance in high-capacity conditions. © 2017 ISHS. 650 $aVID 653 $aBOTRYTIS BUNCH ROT 653 $aTANNAT 653 $aVETETATIVE GROWTH 700 1 $aFERRARI, V. 700 1 $aDISEGNA, E. 700 1 $aLAKSO, A.N. 700 1 $aGARCÍA PETILLO, M. 773 $tActa Horticulturae, 8 November 2017, 1177, p. 339-348.
Descargar
Esconder MarcPresentar Marc Completo |
Registro original : |
INIA Las Brujas (LB) |
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
Expresión de búsqueda válido. Check! |
|
|