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Registros recuperados: 33 | |
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HUNGRIA, M.; CAMPO, R. J.; MENDES, I. C.. |
Qual a importância da fixação biológica do nitrogênio para o Brasil e para o planeta? De modo sucinto, como ocorre o processo de fixação biológica do nitrogênio com a soja? De quanto nitrogênio a cultura da soja precisa para atingir altos rendimentos? Quando e por quanto tempo a soja consegue fixar N2? É necessário colocar uma dose inicial de fertilizante nitrogenado para suprimir sintomas de clorose? A aplicação de fertilizante nitrogenado em outros estádios do crescimento da soja é necessária para a obtenção de altos rendimentos? Por que é necessário inocular a soja em solos de primeiro cultivo? Áreas que estavam sob pastagens, com cana-de-açúcar, ou com outras culturas, há vários anos, podem ser consideradas como primeiro cultivo? Em áreas... |
Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Fixação de nitrogênio; Soja. |
Ano: 2007 |
URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/468512 |
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HUNGRIA, M.; MENDES, I. C.; NAKATANI, A. S.; REIS-JUNIOR, F. B. dos; MORAIS, J. Z.; OLIVEIRA, M. C. N. de; FERNANDES, M. F.. |
The commercial use of glyphosate-resistant (also known as Roundup Ready®, GR or RR) soybean wasinitiated in 1996 in the United States. This genetically engineered crop now occupies 75.4 million haworldwide, 20.6 million of which are in Brazil where it occupies 86% of the total area cropped with thelegume. Biological nitrogen fixation (BNF) is critical for economic sustainability of soybean in Brazil;therefore, to investigate the effects of the RR gene?using pairs of nearly isogenic cultivars?and herbi-cides on BNF, we conducted an extensive series of field experiments for three cropping seasons. Theexperiments were set up at six sites with five treatments, three pairs of nearly isogenic cultivars, andsix replicates. The treatments consisted of: (T1) RR... |
Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Soja; Herbicida; Fixação de nitrogênio; Soybeans; Herbicides; Nitrogen fixation. |
Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/977903 |
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HUNGRIA, M.; MENDES, I. C.; NAKATANI, A. S.; REIS JUNIOR, F. B. dos; MORAIS, J. Z.; OLIVEIRA, M. C. N. de; FERNANDES, M. F.. |
The commercial use of glyphosate-resistant (also known as Roundup Ready®, GR or RR) soybean wasinitiated in 1996 in the United States. This genetically engineered crop now occupies 75.4 million haworldwide, 20.6 million of which are in Brazil where it occupies 86% of the total area cropped with thelegume. Biological nitrogen fixation (BNF) is critical for economic sustainability of soybean in Brazil;therefore, to investigate the effects of the RR gene?using pairs of nearly isogenic cultivars?and herbi-cides on BNF, we conducted an extensive series of field experiments for three cropping seasons. Theexperiments were set up at six sites with five treatments, three pairs of nearly isogenic cultivars, andsix replicates. The treatments consisted of: (T1) RR... |
Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Fixação biológica de nitrogênio. |
Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/979616 |
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NAKATANI, A. S.; FERNANDES, M. F.; SOUZA, R. A. de; SILVA, A. P. da; REIS-JUNIOR, F. B. dos; MENDES, I. C.; HUNGRIA, M.. |
Glyphosate, a broad-spectrum herbicide used for the non-selective control of weeds, inhibits 5-enolpyruvylshikimate-3-phosphate synthase, a key enzyme in the synthesis of aromatic amino acidsin the shikimic acid pathway in plants, fungi and bacteria, thus impairing the synthesis of proteinsrequired for various life processes. Soybean genetically engineered to be glyphosate resistant (GR orRoundup Ready, RR) represents the most cultivated transgenic crop globally, including Brazil. There areconcerns about the effects of RR transgenic soybean and of glyphosate on soil microbial communitiesand their functioning. Our study was designed to detect changes in soil microbial biomass-carbon (MB-C) and -nitrogen (MB-N) and in enzyme activities [beta-glucosidase... |
Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Soja. |
Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/984907 |
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Registros recuperados: 33 | |
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