|
|
Registros recuperados : 1 | |
1. | | MOREIRA, A.; TEIXEIRA, W. G.; MARTINS, G. C.; FALCÃO, N. P. de S. Métodos de caracterização química de amostras de horizontes antrópicos das terras pretas de índio. In: TEIXEIRA, W. G.; KERN, D. C.; MADARI, B. E.; LIMA, H. N.; WOODS, I. W. (Ed.). As terras pretas de índio da Amazônia: sua caracterização e uso deste conhecimento na criação de novas áreas. Manaus: EDUA/Embrapa Amazônia Ocidental, 2010. p. 202-212. Biblioteca(s): Embrapa Amazônia Ocidental. |
| |
Registros recuperados : 1 | |
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
07/02/2014 |
Data da última atualização: |
09/11/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
FAGERIA, N. K.; MOREIRA, A.; CASTRO, C.; MORAES, M. F. |
Afiliação: |
NAND KUMAR FAGERIA, CNPAF; ADONIS MOREIRA, CNPSO; CESAR DE CASTRO, CNPSO; UFMT. |
Título: |
Optimal acidity indices for soybean production in brazilian oxisols. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, v. 44, n. 20, p. 2941-2951, Oct. 2013. |
ISSN: |
0010-3624 |
DOI: |
10.1080/00103624.2013.829484 |
Idioma: |
Inglês |
Conteúdo: |
Soybean is an important crop for the Brazilian economy, and soil acidity is one of the main yield-limiting factors in Brazilian Oxisols. A field experiment was conducted during three consecutive years with the objective to determine soybean response to liming grown on Oxisols. Liming rates used were 0, 3, 6, 12, and 18 Mg ha?1. Liming significantly increased grain yield in a quadratic trend. Ninety percent maximum economic grain yield (2900 kg ha?1) was achieved with the application of about 6 Mg lime ha?1. Shoot dry weight, number of pods per plant, and 100-grain weight were also increased significantly in a quadratic fashion with increasing liming rate from 0 to 18 Mg ha?1. These growth and yield components had a significant positive association with grain yield. Maximum contribution in increasing grain yield was of number of pods per plant followed by grain harvest index and shoot dry weight. Uptake of nitrogen (N) was greatest and phosphorus (P) was least among macronutrients in soybean plant. Nutrient-use efficiency (kg grain per kg nutrient accumulation in grain) was maximum for magnesium (Mg) and lowest for N among macronutrients. Application of 3 Mg lime ha?1 neutralized all aluminum ions in soil solution. Optimal acidity indices for 90% of maximum yield were pH 6.0, calcium (Ca) 1.6 cmolc kg?1, Mg 0.9 cmolc kg?1, base saturation 51%, cation exchange capacity (CEC) 4.8 cmolc kg?1, Ca/Mg ratio 1.9, Ca?/?potassium (K) ratio 5.6, and Mg/K ratio 3.0. |
Thesagro: |
Acidez do solo; Manejo do solo; Soja; Solo ácido. |
Thesaurus NAL: |
Acid soils; Soybeans. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02184naa a2200253 a 4500 001 1979079 005 2015-11-09 008 2013 bl --- 0-- u #d 022 $a0010-3624 024 7 $a10.1080/00103624.2013.829484$2DOI 100 1 $aFAGERIA, N. K. 245 $aOptimal acidity indices for soybean production in brazilian oxisols. 260 $c2013 520 $aSoybean is an important crop for the Brazilian economy, and soil acidity is one of the main yield-limiting factors in Brazilian Oxisols. A field experiment was conducted during three consecutive years with the objective to determine soybean response to liming grown on Oxisols. Liming rates used were 0, 3, 6, 12, and 18 Mg ha?1. Liming significantly increased grain yield in a quadratic trend. Ninety percent maximum economic grain yield (2900 kg ha?1) was achieved with the application of about 6 Mg lime ha?1. Shoot dry weight, number of pods per plant, and 100-grain weight were also increased significantly in a quadratic fashion with increasing liming rate from 0 to 18 Mg ha?1. These growth and yield components had a significant positive association with grain yield. Maximum contribution in increasing grain yield was of number of pods per plant followed by grain harvest index and shoot dry weight. Uptake of nitrogen (N) was greatest and phosphorus (P) was least among macronutrients in soybean plant. Nutrient-use efficiency (kg grain per kg nutrient accumulation in grain) was maximum for magnesium (Mg) and lowest for N among macronutrients. Application of 3 Mg lime ha?1 neutralized all aluminum ions in soil solution. Optimal acidity indices for 90% of maximum yield were pH 6.0, calcium (Ca) 1.6 cmolc kg?1, Mg 0.9 cmolc kg?1, base saturation 51%, cation exchange capacity (CEC) 4.8 cmolc kg?1, Ca/Mg ratio 1.9, Ca?/?potassium (K) ratio 5.6, and Mg/K ratio 3.0. 650 $aAcid soils 650 $aSoybeans 650 $aAcidez do solo 650 $aManejo do solo 650 $aSoja 650 $aSolo ácido 700 1 $aMOREIRA, A. 700 1 $aCASTRO, C. 700 1 $aMORAES, M. F. 773 $tCommunications in Soil Science and Plant Analysis$gv. 44, n. 20, p. 2941-2951, Oct. 2013.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Soja (CNPSO) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|