| Registro completo |
| Provedor de dados: |
Repositório Alice
|
| País: |
Brazil
|
| Título: |
Corn agronomic traits and recovery of nitrogen from fertilizer during crop season and off-season.
|
| Autores: |
GARCIA FUENTES, L. F.
SOUZA, L. C. F. de
SERRA, A. P.
RECH, J.
VITORINO, A. C. T.
|
| Data: |
2018-12-03
|
| Ano: |
2018
|
| Palavras-chave: |
Manejo da adubação nitrogenada
Nutrição de plantas
De N pelo solo
N-fertilizer management
Soil-N supply
Zea Mays
Fertilidade do Solo
Plant nutrition
Soil fertility
|
| Resumo: |
The objective of this work was to evaluate corn agronomic traits in a cultivation subjected to different N rates, during the fall?winter (off-season) and spring?summer crop seasons, and N recovery from fertilizer. The experiment was set up in a randomized complete block design with four replicates, in a 5x2 factorial arrangement, with the following treatments: five N topdressing rates ? 0, 30, 60, 90, and 120 kg ha-1 ?, using urea as source; and two crop seasons, fall?winter and spring?summer. The following variables were determined: plant height, height of the first ear insertion, number of grains per ear, diameter and length of ear, 1,000-grain weight, N concentration in the leaves and grains, grain-protein concentration, grain yield, N recovery from fertilizer, and soil-N supply. Nitrogen rates in the fertilizer in the fall?winter season had no effect on grain yield, although corn agronomic traits showed a greater reliance on fertilizer-N rates in that season than in the spring?summer, which is a season associated to a greater capacity of soil-N supply to plants. The quantification of soil-N supply enabled knowing the nutrient dynamics during the fall?winter and the spring?summer seasons, which may be useful to guide N fertilization of corn.
bitstream/item/187582/1/Corn-agronomic-traits.pdf
Título em português: Características agronômicas do milho e recuperação de nitrogênio do fertilizante durante a safra e a safrinha.
|
| Tipo: |
Artigo em periódico indexado (ALICE)
|
| Idioma: |
Inglês
|
| Identificador: |
17173
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1100588
|
| Editor: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, v. 10, p. 1158-1166, Oct. 2018
|
| Relação: |
Embrapa Gado de Corte - Artigo em periódico indexado (ALICE)
|
|
