Data/hora: 24/06/2024 21:51:14

Biblioteca(s): | Embrapa Rondônia; Embrapa Unidades Centrais.
Data corrente: | 01/07/2019
Data da última atualização: | 27/01/2020
Autoria: | BARBERENA, I. M.; ESPINDULA, M. C.; ARAÚJO, L. F. B. de; MARCOLAN, A. L.
Afiliação: | MARCELO CURITIBA ESPINDULA, CPAF-RO; ALAERTO LUIZ MARCOLAN, CPAF-RO.
Título: | Use of urease inhibitors to reduce ammonia volatilization in Amazonian soils.
Ano de publicação: | 2019
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, v. 54, e00253, 2019.
Idioma: | Inglês
Conteúdo: | The objective of this work was to evaluate urease inhibitors for the reduction of ammonia volatilization in Amazonian soils. The work was carried out on a clayey yellow Oxisol, a clayey red Oxisol, and on a light silty Ultisol. Each experiment was conducted in split plots, using standard urea, urea + a benzimidazole-type urease inhibitor (BZI1), urea + a benzoylthiourea-type urease inhibitor (RTB68), urea + N-(n-butyl) triamide thiophosphate (NBPT), or a fertilizer-free control. Volatilized ammonia was collected at 48, 96, 144, 192, 240, 288, 336, and 384 hours after fertilization. Ammonia volatilization reached a maximum at 144 hours in the urea, urea + benzimidazole, and urea + benzoylthiourea treatments. A peak level was reached at 192 and 288 hours in the urea + N-(n-butyl) triamide thiophosphate treatment. In yellow Oxisols, benzimidazole and benzoylthiourea reduced the ammonia losses by 22 and 10%, respectively, in soils without urease inhibitors. However, neither of these agents significantly reduced ammonia volatilization at the rate determined for standard urea in red Oxisols or Ultisols. N-(n-butyl) triamide thiophosphate is the most efficient urease inhibitor for the soils of southwestern Amazonia.
Palavras-Chave: | Benzoylthiourea; Inibidor de urease; Plintossolo.
Thesagro: | Benzimidazol; Latossolo.
Thesaurus Nal: | Benzimidazole; Oxisols; Plinthosols; Urease inhibitors.
Categoria do assunto: | --

URL:

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/209268/1/Barberena-et-al.-2019.pdf
http://ainfo.cnptia.embrapa.br/digital/bitstream/item/198928/1/Use-of-urease-inhibitors-to-reduce.pdf

Registro original: | Embrapa Rondônia (CPAF-RO)

Exemplares:

AI-SEDE - (63968-1) - UPE - AP - DD -  -  -  - DIS
CPAF-RO - (18389-1) - UPC - AP - DD -  -  -  - DIS