Zobrazeno 1 - 10
of 257
pro vyhledávání: '"VALDEMAR FAQUIN"'
Autor:
Cynthia de Oliveira, Silvio Junio Ramos, Guilherme Soares Dinali, Teotonio Soares de Carvalho, Fábio Aurélio Dias Martins, Valdemar Faquin, Evaristo Mauro de Castro, Jorge Eduardo Souza Sarkis, José Oswaldo Siqueira, Luiz Roberto Guimarães Guilherme
Publikováno v:
Plants, Vol 13, Iss 11, p 1435 (2024)
Rare earth elements (REEs) have been intentionally used in Chinese agriculture since the 1980s to improve crop yields. Around the world, REEs are also involuntarily applied to soils through phosphate fertilizers. These elements are known to alleviate
Externí odkaz:
https://doaj.org/article/28184d570869447baa446b3776e8e1bf
Autor:
Patriciani Estela Cipriano, Rodrigo Fonseca da Silva, Cynthia de Oliveira, Alexandre Boari de Lima, Fabio Aurélio Dias Martins, Gizele Celante, Alcindo Aparecido dos Santos, Marcos Vinicio Lopes Rodrigues Archilha, Marcos Felipe Pinatto Botelho, Valdemar Faquin, Luiz Roberto Guimarães Guilherme
Publikováno v:
Foods, Vol 12, Iss 10, p 2034 (2023)
Agronomic biofortification with selenium (Se) effectively reduces hidden hunger and increases the nutritional intake of Se in people and animals. Because sorghum is a staple diet for millions of people and is used in animal feed, it becomes a crop wi
Externí odkaz:
https://doaj.org/article/d0742ef525bc40b4a2a80df6d871bdee
Autor:
Luciane Reis Sales, Geanderson Nascimento da Silva, Raphael Henrique da Silva Siqueira, Marco Aurélio Carbone Carneiro, Valdemar Faquin
Publikováno v:
Pesquisa Agropecuária Brasileira, Vol 53, Iss 8, Pp 943-951 (2018)
Abstract: The objective of this work was to evaluate the influence of arbuscular mycorrhizal fungi (AMF) on the accumulation of shoot and root biomass and on the nutrient contents of Urochloa decumbens grown in soils with different densities. The exp
Externí odkaz:
https://doaj.org/article/a87d87672e73489784ac6113407c36d4
Publikováno v:
Pesquisa Agropecuária Tropical, Vol 46, Iss 4, Pp 357-366 (2016)
Although used as an additional nutritional source of phosphorus in agriculture, little is known about the effects of phosphites on plants. In order to evaluate the influence of phosphite and phosphate on the accumulation and translocation of phosphor
Externí odkaz:
https://doaj.org/article/a1938810f23841b0a67a6ce216fdc35d
Autor:
Wantuir Filipe Teixeira Chagas, Douglas Ramos Guelfi, Eduardo Bucsan Emrich, André Leite Silva, Valdemar Faquin
Publikováno v:
Revista Ciência Agronômica, Vol 47, Iss 3, Pp 439-446 (2016)
ABSTRACT Information related to phosphate fertilization and coated phosphate fertilizer in onion is scarce. Thus, this study was carried out to evaluate agronomic efficiency, production and nutritional characteristics of triple superphosphate coated
Externí odkaz:
https://doaj.org/article/87dffca0ae8c4a21805a17d28862a242
Autor:
Nilma Portela Oliveira, Valdemar Faquin, Alisson Lucrécio da Costa, Kalynka Gabriella do Livramento, Paulo Jorge de Pinho, Luiz Roberto Guimarães Guilherme
Publikováno v:
Revista Ceres, Vol 63, Iss 3, Pp 403-411 (2016)
ABSTRACT The staple diet of most of the world population is provided by cereal, which present levels of iron (Fe) and zinc (Zn) below the nutritional demand of humans. Other factors that may substantially interfere for the low intake of Fe and Zn are
Externí odkaz:
https://doaj.org/article/381a59daf84b4105a6fd2e8882120399
Autor:
Josinaldo Lopes Araujo, Valdemar Faquin, Danielle Pereira Baliza, Fabrício William de Ávila, Amaralina Celoto Guerrero
Publikováno v:
Revista Ceres, Vol 63, Iss 2, Pp 232-240 (2016)
RESUMO Em cultivos hidropônicos de hortaliças folhosas destacam-se, dentre os fatores que influenciam a produção e qualidade do produto, as exigências nutricionais da cultura. Objetivou-se, com este trabalho, avaliar o efeito de concentrações
Externí odkaz:
https://doaj.org/article/89cc41e1f7954bbca6336c7d0c4c9885
Autor:
Anderson William Dominghetti, Douglas Ramos Guelfi, Rubens José Guimarães, André Luiz Carvalho Caputo, Carlos Roberto Spehar, Valdemar Faquin
Publikováno v:
Ciência e Agrotecnologia, Vol 40, Iss 2, Pp 173-183 (2016)
ABSTRACT Ammonia volatilization (N-NH3) is one of the main pathways of Nitrogen loss reducing nitrogen use efficiency in coffee orchard. This work aimed at quantifying ammonia volatilization (N-NH3) losses from N-sources to be used in coffee plantati
Externí odkaz:
https://doaj.org/article/15c84bf884c7483280bcdb90caf94bf2
Autor:
Eduardo Lopes Cancellier, Douglas Ramos Guelfi Silva, Valdemar Faquin, Bruno de Almeida Gonçalves, Leandro Lopes Cancellier, Carlos Roberto Spehar
Publikováno v:
Ciência e Agrotecnologia, Vol 40, Iss 2, Pp 133-144 (2016)
ABSTRACT High nitrogen losses by ammonia volatilization are expected when urea is used as the source of N. The use of controlled-release urea and urease inhibitors are possible strategies to reduce such losses and increase nitrogen use efficiency. Th
Externí odkaz:
https://doaj.org/article/47372aaf471c4c379c51adb621c74577
Autor:
André B. Andrade, Douglas R. Guelfi, Valdemar Faquin, Fabrício S. Coelho, Carolina S. de C. Souza, Giulianno P. Faquin, Kamila R. D. Souza, Wantuir F. T. Chagas
Publikováno v:
Agronomy, Vol 10, Iss 4, p 572 (2020)
Knowing the nitrogen use efficiency (NUE) of crops is crucial to minimize environmental pollution, although NUE is rarely provided for numerous genotypes in the tobacco (Nicotiana tabacum L.) crop. Through the growth of contrasting genotypes in nutri
Externí odkaz:
https://doaj.org/article/90fe8f7f810241fdaa37f931d8c8a9ab