| Registro completo |
| Provedor de dados: |
AGRIAMBI
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| País: |
Brazil
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| Título: |
Single and split nitrogen dose in wheat yield indicators
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| Autores: |
Costa,Juliane S. P.
Mantai,Rubia D.
Silva,José A. G. da
Scremin,Osmar B.
Arenhardt,Emilio G.
Lima,Andressa R. C. de
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| Data: |
2018-01-01
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| Ano: |
2018
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| Palavras-chave: |
Triticum aestivum
Urea
Residual N
Temperature
Rainfall
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| Resumo: |
ABSTRACT Single or split nitrogen (N) supply can maximize the expression of wheat yield indicators. The objective of the study was to evaluate the greater N use efficiency on wheat yield indicators by the single and split N supply under favorable and unfavorable year conditions to the crop in succession system of high and reduced residual N release. The study was conducted in 2014 and 2015, in a randomized complete block design with four replicates in a 4 x 3 factorial, for N-fertilizer doses (0, 30, 60, 120 kg ha-1) and supply forms [full dose (100%) in the phenological stage V3 (third expanded leaf); split dose (70 and 30%) in the phenological stages V3/V6 (third and sixth expanded leaves, respectively) and; split dose (70 and 30%) in the phenological stages V3/R1 (third expanded leaf and early grain filling)], respectively, in soybean/wheat and maize/wheat cultivation systems. The highest N use efficiency for wheat yield was obtained with the single dose supply in favorable year of temperature and rainfall and with the split dose in the V3/V6 stages in unfavorable year, regardless of the succession system of high and reduced residual N release.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000100016
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| Editor: |
Departamento de Engenharia Agrícola - UFCG
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| Relação: |
10.1590/1807-1929/agriambi.v22n1p16-21
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Engenharia Agrícola e Ambiental v.22 n.1 2018
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| Direitos: |
info:eu-repo/semantics/openAccess
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