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Aplicação de silicatos de cálcio e de potássio e o crescimento de mudas de Eucalyptus grandis PFB - Pesquisa Florestal Brasileira
Bognola, Itamar Antonio; Clasen, Lina Avila; Franciscon, Luziane; Gava, Jose Luiz; Dedecek, Renato Antonio; Silva, Fernando Márcio da.
O uso de silicato é uma prática que vem sendo adotada com frequência em culturas anuais, muito embora poucos trabalhos tenham sido realizados com intuito de verificar sua eficiência em espécies florestais arbóreas. O objetivo principal desta pesquisa foi avaliar o efeito da aplicação de silicatos de cálcio e de potássio no crescimento de mudas de Eucalyptus grandis. O experimento foi conduzido em casa de vegetação, no Município de Alambari, SP. O delineamento usado foi inteiramente ao acaso, com oito tratamentos, três repetições e 25 plantas por parcela, sendo mantidas na umidade de capacidade de campo. As mudas foram plantadas em tubetes de plástico, utilizando substrato local, com adubação básica e silicatos. Diâmetro de colo, altura e biomassa verde e...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Silício; Adubação; Nutrição florestal Silicon; Fertilization; Forest nutrition.
Ano: 2011 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/150
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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
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Boron mobility in eucalyptus clones Rev. Bras. Ciênc. Solo
José,Jackson Freitas Brilhante de São; Silva,Ivo Ribeiro da; Barros,Nairam Felix de; Novais,Roberto Ferreira; Silva,Eulene Francisco; Smyth,Thomas Jot; Leite,Fernando Palha; Nunes,Flancer Novais; Gebrim,Fabrício Oliveira.
Understanding the magnitude of B mobility in eucalyptus may help to select clones that are more efficient for B use and to design new practices of B fertilization. This study consisted of five experiments with three eucalyptus clones (129, 57 and 58) where the response to and mobility of B were evaluated. Results indicated that clone 129 was less sensitive to B deficiency than clones 68 and 57, apparently due to its ability to translocate B previously absorbed via root systems to younger tissues when B in solution became limiting. Translocation also occurred when B was applied as boric acid only once to a single mature leaf, resulting in higher B concentration in roots, stems and younger leaves. The growth of B-deficient plants was also recovere by a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Micronutrient; Forest nutrition; Translocation; Polyol.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000600022
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Nutrient composition of mature and litter leaves and nutrient mobilization in leaves of tree species from secondary rainforests in the South of Brazil BABT
Dickow,Kauana Melissa Cunha; Marques,Renato; Pinto,Carolina Benghi.
The aim of this work was to analyze the concentration of N, P, K, Ca and Mg in mature and litter leaves and nutrient mobilization in leaves of different tree species from secondary forests of the Atlantic Forest. At the study site, located in Floresta do Palmito (Paranaguá, PR), three different forest typologies namely Initial, Intermediary and Advanced were selected. The predominant sequence of nutrients in litter leaves was: N > Ca > Mg > K > P. This sequence was very similar to that found for mature leaves, the difference being only the change in order between Mg and K. Nutrients mobilized in leaves were higher in the typology Advanced compared to the typology Initial, mainly N, P and K. The majority of the species studied did not mobilize...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic forest; Biogeochemical cycling; Forest nutrition; Brazil.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500006
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Nutrient efficiency of tree species in response to phosphorus fertilization PFB - Pesquisa Florestal Brasileira
Fontes, Alexandre Gomes; Gama-Rodrigues, Antonio Carlos; Gama-Rodrigues, Emanuela Forestieri.
Studies on forest nutrition and fertilization of native and exotic tree species provide insights on  management programs for rehabilitation of degraded lands. The aim of this study was to evaluate the response to phosphorus fertilization at two levels of liming on biomass production and phosphorus use efficiency of seedlings of the tree species Swietenia macrophylla, Mimosa caesalpiniaefolia, Cedrela fissilis and Toona ciliata. There were differences between the tree species in relation to phosphorus fertilization. Mimosa caesalpiniaefolia produced the highest total dry matter and the greatest P useefficiency in soils with low available P and it was more responsive to the fertilizer addition. Swietenia macrophylla showed better efficiency of P...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forest nutrition; Forest fertilization; Native and exotic tree species Solos Florestal Nutrição florestal; Fertilização florestal; Espécies nativas.
Ano: 2013 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/392
Registros recuperados: 5
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