Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 3
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Chemical attributes of an Argisoil of the Vale do São Francisco after melon growth with phosphate and potash rocks biofertilizers Horticultura Brasileira
Stamford,Newton P; Moura,Patrícia M; Lira Júnior,Mário A; Santos,Carolina Etienne de RS; Duenhas,Luíza Helena; Gava,Carlos Alberto T.
Fertilizer application may promote significant changes in soil reaction and on the availability of important nutrients for plants. The utilization of rock biofertilizers is a practical process that reduces energy consumption and increases nutrient availability in soils. In a field experiment, the effect of biofertilizers produced with phosphate and potash rocks plus Acidithiobacillus inoculation were evaluated on the chemical attributes of an Argisoil from the São Francisco Valley, Pernambuco State, Brazil, after melon cultivation. The experiment was arranged in a factorial 3²+2 scheme in randomized block design, with four replicates. Two sources of P biofertilizer (PB) and K biofertilizer (KB) were applied in the same doses recommended for simple...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cucumis melo; Acidithiobacillus; Apatite; Biotite; Available P and K; Sulfur oxidation.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000400008
Imagem não selecionada

Imprime registro no formato completo
Dissolution of silicate minerals and nutrient availability for corn grown successively. Repositório Alice
KRAHL, L. L.; VALADARES, L. F.; SOUZA-SILVA, J. C.; MARCHI, G.; MARTINS, E. de S..
ABSTRACT - The objective of this work was to evaluate the nutrient availability for corn (Zea mays) grown successively in pure and ground biotite schist and biotite syenite rock samples. The rock powders were subjected to chemical, physical, and mineralogical characterization, and the availability of the elements released to the plants was determined. Plant and rock materials were evaluated at the end of seven successive growth cycles. Biotite schist and biotite syenite provided nutrients - as K, Ca, Mg, Fe, and Mn - to the corn plants. The nutrients accumulated in plant tissues came mostly from minerals containing oxidizable Fe and Mn in their structure, such as biotite, chlorite, and clinopyroxene. The congruent dissolution of some of the fine particles...
Tipo: Artigo de periódico Palavras-chave: Chlorita; Clinopiroxênio; Milho; Rocha; Sistema de Cultivo; Xisto; Zea Mays; Biotite; Chlorite (mineral); Corn; Nutrient availability; Silicate minerals.
Ano: 2022 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1148901
Imagem não selecionada

Imprime registro no formato completo
Some evidences of northward fine sediment transport in the northern Portuguese continental shelf ArchiMer
Drago, T; Oliveira, A; Magalhaes, F; Cascalho, J; Jouanneau, Jm; Vitorino, Joao.
On the basis of sedimentological and oceanographical data, a transport scheme for fine-grained material is proposed in order to explain the location of a muddy deposit present in the northern Portuguese continental shelf, north-west off the Douro River mouth. This mid-shelf deposit is recent, active and its main source is apparently the Douro River. The sediment supply can be related with the oceanographic conditions in winter regime, characterised by a poleward along shelf current with a bottom westward component, as a consequence of a south-west wind. The resulting fine sediment transport, essentially made in the bottom nepheloid layer is believed to have a north-west direction.
Tipo: Text Palavras-chave: Plateau continental portugais; Sédiment fin; Biotite; Transport de sédiments; Hydrologie hivernale; Portuguese shelf; Fine sediments; Biotite; Sediment transport; Winter regime.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00326/43681/43193.pdf
Registros recuperados: 3
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional