Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Felipe Carlos Alvarez Villanueva"'
Publikováno v:
Química Nova, Vol 37, Iss 6, Pp 956-963 (2014)
The chemical kinetics of sugarcane filter cake (FC) organic matter degradation at rates (0, 40, 80, and 120 t ha-1) in non-contaminated and different degrees of cadmium-contaminated Oxisol (0.19, 28, 56, 112 and 200 mg Cd kg-1) and DTPA-extractable C
Externí odkaz:
https://doaj.org/article/d10a5ce7672145d986231591b55659fc
Autor:
Edson Cabral da Silva, Takashi Muraoka, Vinícius Ide Franzini, Felipe Carlos Alvarez Villanueva, Salatiér Buzetti, Dolorice Moreti
Publikováno v:
Pesquisa Agropecuária Brasileira, Vol 47, Iss 8, Pp 1150-1157 (2012)
The objective of this work was to evaluate the utilization by corn plants of P from triple superphosphate fertilizer labeled with 32P (32P‑TSP), and of P from soil as affected by N rates and by the green manures (GM) sunn hemp (Crotalaria juncea) a
Externí odkaz:
https://doaj.org/article/6b79e406b0b244c4871080f95267d83c
Autor:
Felipe Carlos Alvarez Villanueva, Antonio Enedi Boaretto, Lucia Pittol Firme, Takashi Muraoka, Virgilio Franco do Nascimento Filho, Cassio Hamilton Abreu Junior
Publikováno v:
Química Nova, Vol 35, Iss 7, Pp 1348-1354 (2012)
Zn availability in Red Latossol (Rhodic Ferralsol) of different pH amended with different rates of sewage sludge was studied by the isotopic 65Zn L value method. Soil chemical properties were found to be altered by SS addition. Zn concentration and Z
Externí odkaz:
https://doaj.org/article/f6cc181030fe4350b3dc157175b093c7
Autor:
Anderson Ricardo Trevizam, Felipe Carlos Alvarez Villanueva, Takashi Muraoka, Virgilio Franco do Nascimento Filho, Cassio Hamilton Abreu Junior
Publikováno v:
Química Nova, Vol 33, Iss 6, Pp 1235-1241 (2010)
The objective of the study was to evaluate the effect of phosphorus on the Cd availability to plants of a contaminated soil using 109Cd isotope and chemical extractants. The experiment was set in a randomized block design and the soil was labeled wit
Externí odkaz:
https://doaj.org/article/243e31f03d87497d97e8839809298bcf
Autor:
Edson Cabral da Silva, Takashi Muraoka, Felipe Carlos Alvarez Villanueva, Freddy Sinencio Contreras Espinal
Publikováno v:
Pesquisa Agropecuária Brasileira, Vol 44, Iss 2, Pp 118-127 (2009)
O objetivo deste trabalho foi avaliar o aproveitamento, pelo milho (Zea mays L.), do nitrogênio (N) proveniente da ureia, de restos culturais da crotalária (Crotalaria juncea) e do milheto (Pennisetum glaucum), e do solo, em função da adubação
Externí odkaz:
https://doaj.org/article/5102b11421c1443c8516ccd877a2182c
Autor:
Raul Henrique Sartori, Antonio Enedi Boaretto, Felipe Carlos Alvarez Villanueva, Henriqueta Maria Gimenes Fernandes
Publikováno v:
Revista Brasileira de Fruticultura, Vol 30, Iss 2, Pp 523-527 (2008)
O objetivo deste trabalho foi avaliar a contribuição do Zn aplicado nas folhas e no solo para os órgãos desenvolvidos após a aplicação. Plantas de laranjeiras 'Valência' (Citrus sinensis (L.) Osbeck) enxertadas em citrumeleiro 'Swingle'(Citru
Externí odkaz:
https://doaj.org/article/385f84c1eadc4f13b385875076e945d0
Autor:
Felipe Carlos Alvarez Villanueva, Antonio Enedi Boaretto, Cassio Hamilton Abreu Junior, Takashi Muraoka, Anderson Ricardo Trevizam, Virgilio Franco do Nascimento Filho
Publikováno v:
Química Nova, Vol 31, Iss 5, Pp 1020-1026 (2008)
The Cd phytoavailability in sewage sludge-amended soils of different pHs using the 109Cd L-value isotopic method and Cd extracted by DTPA has been determined. Maize plants (Zea mais L.) were grown under greenhouse conditions in a xanthic ferralsol at
Externí odkaz:
https://doaj.org/article/7cf9f76643114353a10d61221dfc9e72
Autor:
Felipe Carlos Alvarez Villanueva, Takashi Muraoka, Anderson Ricardo Trevizam, Vinicius Ide Franzini, Alexandre Prado Rocha
Publikováno v:
Scientia Agricola, Vol 63, Iss 1, Pp 65-69 (2006)
Eucalyptus plantation in Brazil is generally set on low fertility soils, therefore phosphorus (P) fertilization is mandatory and increases the cost of plantation operation. Using species that more efficiently uptake phosphorus from less soluble sourc
Externí odkaz:
https://doaj.org/article/25b7ba5fec8b49e889eadfe0b8f4f373
Autor:
Juliane Bernardi, Rubén Cabrera, Arsenio José Areces Mallea, Felipe Carlos Alvarez Villanueva
Publikováno v:
Journal of Applied Phycology. 26:2055-2063
The potential risks of cultivating carrageenophyte genera for commercial purposes in the circumtropical belt are debated. However, species introductions of two such genera, Kappaphycus Doty and Eucheuma J. Agardh, have been reported in 30 different l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f347bb54c24391abc5ee15fe0ebaddc4
https://doi.org/10.1007/s10811-014-0385-4
https://doi.org/10.1007/s10811-014-0385-4
Autor:
G. G. Bortoleto, C. H. Abreu, L. L. S. de Barros, P. B. Maciel, E. C. M. Duarte, Marcia Nalesso Costa Harder, Felipe Carlos Alvarez Villanueva
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 297:209-213
Biodiesel is a renewable and biodegradable fuel that can be used in diesel engines as a replacement for fossil diesel. A suitable alternative is to produce it from Jatropha curcas, which has high quality oil concentration. Nevertheless, the presence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb7ee7968bffba459dfbcae1baad64fb
https://doi.org/10.1007/s10967-012-2365-y
https://doi.org/10.1007/s10967-012-2365-y