Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Anais da ABC (AABC) (1) PAB (1) Autor Bustamante,Mercedes Maria da Cunha (1) Nardoto,Gabriela Bielefeld (1) SCARAMUZZA,JOSÉ FERNANDO (1) VIEIRA,CRISTIANE R. (1) WEBER,OSCARLINA L.S. (1) Palavra-chave Inorganic compounds (2) Burning (1) Forest nutrition (1) Nitrification (1) Nitrogen mineralization (1) Schizolobium amazonicum (1) Vegetal charcoal (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2003 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Effects of fire on soil nitrogen dynamics and microbial biomass in savannas of Central Brazil PAB Nardoto,Gabriela Bielefeld; Bustamante,Mercedes Maria da Cunha. The objective of this work was to study the effects of fire on net N mineralization and soil microbial biomass in burned and unburned cerrado stricto sensu sites. The study was carried out from April 1998 to April 2000. The pH values were significantly higher in the burned site while soil moisture content was significantly higher in the unburned site (P<0.05). The soil C/N ratio was 22/1 and the available NO3-N ranged between 1.5 and 2.8 mg kg-¹ dry weight. However, the NH4-N concentration ranged between 3 and 34 mg kg-1 dry weight in the burned site and between 3 and 22 mg kg-1 dry weight in the unburned site. The NH4-N increased after fire, but no significant changes were observed for NO3-N (P<0.05). The NO3-N accumulation occurred in short periods... Tipo: Info:eu-repo/semantics/article Palavras-chave: Nitrogen mineralization; Nitrification; Inorganic compounds; Burning. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003000800008 Ash content, carbon and C/N ratio in paricá in function of NPK fertilization Anais da ABC (AABC) VIEIRA,CRISTIANE R.; WEBER,OSCARLINA L.S.; SCARAMUZZA,JOSÉ FERNANDO. ABSTRACT Fertilization in areas of forest plantations is needed to supplement plants´ nutritional needs until harvest. An experiment was performed to check the influence of fertilization on levels of ash, carbon and C/N relation in Schizolobium amazonicum. Soil liming was performed and fertilization occurred after 15 days of incubation. S. amazonicum seedlings were produced and submitted to fertilization with N, P and K: N = 0, 40, 80 and 120 kg ha-1; P2O5 = 0, 50, 100 and 200 kg ha-1; K2O = 0, 50, 100 and 200 kg ha-1. The plants were measured after 180 days. The seedlings of 20 treatments with the highest increase in height and diameter were transplanted to the field. Soil was fertilized and limestone was spread; seedlings were distributed into randomized... Tipo: Info:eu-repo/semantics/article Palavras-chave: Forest nutrition; Inorganic compounds; Schizolobium amazonicum; Vegetal charcoal. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100333 Registros recuperados: 2 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