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| 10. | | ABREU, J.B.R.de; ALMEIDA, J.C.de C.; MELLO, W.A.de; PEREIRA, V.V.; FERREIRA, M.C.M.; MARQUES, R.A.F.de S.; OLIVEIRA, A.J.de. Produção, características morfológicas e de maturação de cultivares de cana-de-açúcar com diferentes ciclos de amadurecimeto para uso na alimentação animal na região de Barbacena/ MG, Brasil. Boletim da Industria Animal, Nova Odessa, v.64, n.2, p.115-121, abr./jun. 2007.| Biblioteca(s): Epagri-Sede. |
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Registro Completo
|
Biblioteca(s): |
Epagri-Sede. |
|
Data corrente: |
21/02/2018 |
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Data da última atualização: |
21/02/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - B |
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Autoria: |
BRUNETTO, G.; LORENSINI, F.; CERETTA, C. A.; FERREIRA, P. A.; COUTO, R. R.; CONTI, L.; CIOTTA, M. N.; KULMANN, M.; SCHNEIDER, R. O.; SOMAVILLA, L. M.; TIECHER, T. L.; GIACOMINI, S.; MELO, G. W. B.; CARRANCA, C. L. V. A. |
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Título: |
Contribution of mineral N to young grapevine in the presence or absence of cover crops. |
|
Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Soil Science and Plant Nutrition, Chile, v. 17, n. 3, p. 570-580, 2017. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The presence of cover crops in vineyards may decrease the availability of nitrogen (N) derived from fertilizer
to grapevines. The present study aimed to evaluate the recovery of urea-15N and growth of young grapevines
with and without natural vegetation in plant rows. The study was conducted in southern Brazil on one-year-old
Chardonnay grapevines grown in soils with and without cover crops. The grapevines were subjected to the application
of 40 kg N ha-1 in the form of urea-15N at 3% 15N atom excess. Dry matter yield, total N and fertilizer
N were assessed in grapevines and soil layers. A small amount of N that is applied during the growing season
of the grapevines is readily assimilated by the plants. The maintenance of cover crops in young vineyards may
favor the maintenance of higher levels of N in the subsurface layers of the soil, contributing to the nutrition of
the grapevines in the following growth cycles. The presence of cover crops reduced the importance of nitrogen
fertilization in the growth cycle of grapevines because a large part of N absorbed by grapevines was derived
from other sources. Nitrogen derived from the fertilizer applied to the soil in the presence or absence of cover
crops was mainly concentrated in the newly-formed vegetative grapevine organs (leaves and shoots). |
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Palavras-Chave: |
N recovery; plant N distribution; residual-15N; Urea-15N; Vitis vinifera. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02278naa a2200337 a 4500
001 1127118
005 2018-02-21
008 2017 bl uuuu u00u1 u #d
100 1 $aBRUNETTO, G.
245 $aContribution of mineral N to young grapevine in the presence or absence of cover crops.$h[electronic resource]
260 $c2017
520 $aThe presence of cover crops in vineyards may decrease the availability of nitrogen (N) derived from fertilizer to grapevines. The present study aimed to evaluate the recovery of urea-15N and growth of young grapevines with and without natural vegetation in plant rows. The study was conducted in southern Brazil on one-year-old Chardonnay grapevines grown in soils with and without cover crops. The grapevines were subjected to the application of 40 kg N ha-1 in the form of urea-15N at 3% 15N atom excess. Dry matter yield, total N and fertilizer N were assessed in grapevines and soil layers. A small amount of N that is applied during the growing season of the grapevines is readily assimilated by the plants. The maintenance of cover crops in young vineyards may favor the maintenance of higher levels of N in the subsurface layers of the soil, contributing to the nutrition of the grapevines in the following growth cycles. The presence of cover crops reduced the importance of nitrogen fertilization in the growth cycle of grapevines because a large part of N absorbed by grapevines was derived from other sources. Nitrogen derived from the fertilizer applied to the soil in the presence or absence of cover crops was mainly concentrated in the newly-formed vegetative grapevine organs (leaves and shoots).
653 $aN recovery
653 $aplant N distribution
653 $aresidual-15N
653 $aUrea-15N
653 $aVitis vinifera
700 1 $aLORENSINI, F.
700 1 $aCERETTA, C. A.
700 1 $aFERREIRA, P. A.
700 1 $aCOUTO, R. R.
700 1 $aCONTI, L.
700 1 $aCIOTTA, M. N.
700 1 $aKULMANN, M.
700 1 $aSCHNEIDER, R. O.
700 1 $aSOMAVILLA, L. M.
700 1 $aTIECHER, T. L.
700 1 $aGIACOMINI, S.
700 1 $aMELO, G. W. B.
700 1 $aCARRANCA, C. L. V. A.
773 $tJournal of Soil Science and Plant Nutrition, Chile$gv. 17, n. 3, p. 570-580, 2017.
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