SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

SFREDO, G. J.; SARRUGE, J. R..

Em experimento de campo, um estudo do acumulo de micronutrientes pelas plantas de girassol foi conduzido no CNPSo em Londrina, PR, num Latossolo Roxo eutrofico. Foram utilizadas seis doses de NPK e destas foi usada a dose 0-0-0 que proporcionou maior producao de materia seca e de aquenios. Amostras de plantas foram coletadas de 14 em 14 dias, de emergencia ao fim do ciclo. A maior velocidade de absorcao de micronutrientes se deu a partir dos 42 dias apos a emergencia; o cobre e o zinco acumularam em maior quantidade nos aquenios, em relacao ao total absorvido. O acumulo maximo em g de micronutrientes, para producao de 1.000 kg de aquenios foi:Fe = 933; Mn = 787; B = 285; Zn = 255; Cu = 102; e sua exportacao pelos aquenios foi: Fe = 69; n 60: Zn 59; Cu =...

Tipo: Artigo de periódico

Palavras-chave: Micronutriente; Aquenio; Brasil; Parana; Sunflower; Micronutrient; Achene.; Girassol; Helianthus Annuus; Solo.; Brazil; Soil..

Ano: 1990

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/444739

Adaptability and stability of the zinc density in cowpea genotypes through GGE-Biplot method

Rev. Ciênc. Agron.

Oliveira,Diêgo Sávio Vasconcelos de; Franco,Luis José Duarte; Menezes-Júnior,José Ângelo Nogueira de; Damasceno-Silva,Kaesel Jackson; Rocha,Maurisrael de Moura; Neves,Adão Cabral das; Sousa,Francisco Mauro de.

ABSTRACT Biofortification is a strategy that aims to improve the nutritional quality of foods through genetic breeding. Zinc is an important mineral for human health. It is used in various physiological processes such as immune function, antioxidant protection, growth and development. Therefore, zinc is one of the most studied minerals in the biofortification of grains in cowpea. The objective of this study was to evaluate the adaptability and stability of zinc density in the grain of 12 cowpea genotypes in four environments in the states of Piauí (PI) and Maranhão (MA), Brazil, by using the GGE-Biplot method. A randomized complete block design with four replications was used. Grain samples of each genotype were ground and the resulting flour was subjected...

Adubação de leguminosas tropicais (Pueraria phaseoloides e Stylosanthes guianensis) no nordeste paraense.

Palavras-chave: Vigna unguiculata; Micronutrient; Biofortification; Genotype × environment interaction.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500783

SIMÃO NETO, M.; GONÇALVES, C. A.; CAMARÃO, A. P..

Visando avaliar os efeitos de fertilizantes sobre os rendimentos de matéria seca (MS) e composição química do Sty/osanthes guíanensís, cv. Cook e Pueraría pbeseoioides, com e sem calcário, foi realizado um ensaio, num Latossolo Amarelo, com tratamentos em parcelas subdivididas (7x2), sendo constituídos por 7 tipos de adubação: 1 - Sem adubação, 2 - Fósforo (P), 3 - P + Potássio (K), 4 - K , 5 - Nitrogênio (N), 6 - NPK e 7 - NPK+micronutrientes (NPKM); e 2 quantidades: O e 2 tlha. A calagem não influenciou a produção de matéria seca (MS), porém elevou os teores de Ca de ambas leguminosas Os teores de proteína bruta e fósforo foram aumentados com a fertilização. As produções de MS das leguminosas foram consideravelmente aumentadas com adição de...

Tipo: Parte de livro

Palavras-chave: Fertilizer; Production; Dry matter; Feed legumes; Micronutrient; Cálcio; Composição Química; Fertilizante; Forragem; Fósforo; Matéria Seca; Potássio; Produção; Proteína Bruta; Pueraria Phaseoloides; Stylosanthes Guianensis; Calcium; Chemical composition; Crude protein; Forage; Nitrogen; Phosphorus; Potassium.

Ano: 1998

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/394916

Aplicação de zinco em sementes de sorgo cv. BRS 304: efeitos na nutrição e no crescimento inicial - DOI: 10.4025/actasciagron.v30i4.5300

Agronomy

Romualdo, Liliane Maria; UNESP; Rozane, Danilo Eduardo; UNESP.

O efeito do zinco aplicado, em sementes na nutrição do sorgo, é afetado pelas fontes e doses empregadas. O presente trabalho objetivou avaliar a aplicação de zinco, a partir de duas fontes, sobre a nutrição e o crescimento inicial da cultura do sorgo cv. BRS 304, cultivado em areia. Os tratamentos foram cinco doses (0; 14,3; 28,6; 57,2 e 114,4 g kg-1 de semente) e duas fontes de zinco, o sulfato (22% de Zn) e o óxido (50% de Zn). Aos 25 dias após a semeadura, efetuou-se o corte das plantas, e avaliou-se a massa seca da parte aérea e das raízes, e determinou-se o teor e o acúmulo de Zn nas plantas. A aplicação de 14 g Zn kg-1 de sementes, na forma de óxido, proporcionou adequado crescimento inicial do sorgo cv. BRS 304. A fonte sulfato promoveu maior...

Palavras-chave: 5.01.00.00-9 Agronomia Sorghum bicolor; Micronutriente; Adubação; Absorção. Sorghum bicolor; Micronutrient; Fertilization; Absorption.

Ano: 2008

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5300

Avaliação de doses de molibdato de sódio em solução aquosa na germinação de sementes de alface.

Infoteca-e

SOUZA, A. F.; MENEZES, J. E.; MESQUITA FILHO, M. V..

bitstream/item/107300/1/Avaliacao-de-doses-de-molibdato-de-sodio.pdf

Tipo: Outras publicações técnicas (INFOTECA-E)

Palavras-chave: Micronutriente; Micronutrient; Molibdenium.; Alface; Lactuca Sativa; Molibdênio; Semente.; Lettuce; Seeds..

Ano: 1998

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/764699

Boron affects the growth and ultrastructure of castor bean plants

Silva,Denis Herisson da; Rossi,Monica Lanzoni; Boaretto,Antonio Enedi; Nogueira,Neusa de Lima; Muraoka,Takashi.

The cultivation of oleaginous plants like the castor bean guarantees employment for agricultural families and can contribute in energy and chemical sectors, especially in the northeastern semi-arid regions of Brazil. Boron (B) deficiency is a widespread nutritional disorder despite the fact that various anthropogenic sources with high B content may increase soil B to toxic levels for plants. The present study was designed to investigate the ultrastructural effects of boron deficiency and toxicity on castor bean plants which were grown under greenhouse condition using plastic containers with 10 L of nutrient solution. Boron treatments comprised: control (no B); 0.27 mg L-1, 5.40 mg L-1 B pots (one plant per pot), tested in a completely randomized design...

Boron mobility in eucalyptus clones

Palavras-chave: Electron microscopy; Middle lamellae; Micronutrient; Xylem; Starch.

Ano: 2008

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000600014

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...

Boron nutrition and yield of alfalfa cultivar crioula in relation to boron supply

Palavras-chave: Micronutrient; Forest nutrition; Translocation; Polyol.

Ano: 2009

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000600022

Santos,Anacleto Ranulfo dos; Mattos,Waldssimiler Teixeira de; Almeida,Ana Aparecida da Silva; Monteiro,Francisco Antonio; Corrêa,Beatriz Dias; Gupta,Umesh C..

Alfalfa cultivar Crioula (Medicago sativa cv. Crioula) is grown in South Brazil and only a few studies on the plants' boron requirement are available. A greenhouse experiment was carried out with alfalfa to measure boron acquisition, production and distribution in the plant; data on critical level and production potentials were recorded. Plants were grown in ground quartz added with 1 L of solution, with the following boron rates: 0, 0.0625, 0.125, 0.25, 0.50, 1.00, and 2.00 mg L-1. Plants were harvested at 46 days of growth. Forage dry mass was increased by boron supply and dry matter accumulation was considerably low in control. Boron concentration in the leaves was higher than in the stems or roots. Boron utilization from the external solution reached...

Carbohydrate production and transport in cotton cultivars grown under boron deficiency

Palavras-chave: Lucerne; Medicago sativa; Plant nutrition; Micronutrient; Critical level.

Ano: 2004

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000500006

Bogiani,Julio Cesar; Amaro,Amanda Cristina Esteves; Rosolem,Ciro Antonio.

An adequate supply of boron (B) is required for the optimal growth and development of cotton (Gossypium hirsutum L.) plants, but the low phloem mobility of B limits the possibilities of correcting B deficiency. There are indications that different cotton cultivars could have different responses to B deficiency. The differences in responses of cotton cultivars to B regarding photoassimilate production and transport were studied in a greenhouse experiment with nutrient solution. Treatments consisted of three cotton cultivars (FMT 701, DP 604BG and FMX 993) and five concentrations of B (0.0, 2.5, 5.0, 10.0 and 20.0 µmol L−1). Sampling began at the phenological stage B1 (first square) and continued for four weeks. The leaf area and the number of reproductive...

Characterizing zinc use efficiency in varieties of Arabica coffee - doi: 10.4025/actasciagron.v35i3.16322

Palavras-chave: Micronutrient; Nonstructural carbohydrates; Photosynthesis; Transpiration.

Ano: 2013

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000600010

Agronomy

Pedrosa, Adriene Woods; Universidade de São Paulo; Prieto Martinez, Herminia Emilia; Universidade Federal de Viçosa; Cruz, Cosme Damião; Universidade Federal de Viçosa; DaMata, Fábio Murilo; Universidade Federal de Viçosa; Clemente, Junia Maria; Universidade Federal de Viçosa; Paula Neto, Ana; Universidade de São Paulo.

Among micronutrients, zinc (Zn) is important for coffee tree cultivation, especially in the clayey acid soils of Brazil’s southeast region, where coffee production is an important activity. This study aimed to evaluate the Zn use efficiency of coffee tree varieties using two zinc concentrations. Seedlings of 11 varieties of coffee trees were grown in a greenhouse in nutrient solution containing either 0.0 or 6.0 µmol L-1 of Zn. After eight months, we evaluated the total biomass production, leaf biomass production, concentration of Zn in the plant organs, absorption efficiency, and Zn use efficiency. All characteristics were affected by the Zn concentration. The biomass production of apical leaves was most affected by the Zn treatments, with high...

Tipo: Pesquisa baseada em experimentação

Palavras-chave: 5.01.03.06-7 Coffea arabica L.; Micronutrient; Zinc content; Nutritional efficiency Eficiência nutricional Coffea arabica L.; Micronutrient; Zinc content; Nutritional efficiency.

Ano: 2013

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16322

Chemical attributes of a degraded soil after application of water treatment sludges

Silva,Érica Tomé da; Melo,Wanderley José de; Teixeira,Sandra Tereza.

Mining is an activity that tends to degrade the environment. The restoration of mining areas, aims to accelerate and improve the succession process according to its future use. The objective of this work was to rehabilitate a soil degraded by tin mining activities in the Amazon Basin (Jamari National Forest, State of Rondônia) with the application of water treatment sludge (WTS), and verify the effect of sludge on values of pH (CaCl2 0.01 mol L-1), organic matter, P, Ca, Mg, K, H+Al, and soil micronutrient contents when cultivated with native plants, legumes, and grass species. A factorial (3 X 5) experimental design was used to optimize the rehabilitation of these areas including three N rates (100, 200, and 300 mg N kg-1 soil supplied by WTS), five plant...

Compared boron uptake and translocation in cotton cultivars

Palavras-chave: Soil fertility; Micronutrient; Tin mining; Soil reclaiming; Residue.

Ano: 2005

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000600008

Rev. Bras. Ciênc. Solo

Bogiani,Júlio César; Rosolem,Ciro Antônio.

The mobility of boron (B), a commonly deficient micronutrient in cotton, has been shown to be low in the plant phloem. Nevertheless, studies have indicated that cotton cultivars can respond differently to B application. A greenhouse experiment was conducted to compare B absorption and mobility in cotton cultivars grown in nutrient solution. Treatments consisted of three cotton cultivars (FMT 701, DP 604BG and FMX 993), and five B rates (0.0, 2.5, 5.0, 10.0, and 20.0 µmol L-1). Plant growth and development were monitored for four weeks from the appearance of the first square. The time of onset and severity of B deficiency symptoms varied among cotton cultivars. Initial B uptake of cv. DP 604BG was lower than of the other cultivars, but a greater amount of...

Consumo e producao de fertilizantes no Brasil.

Palavras-chave: Variety; Micronutrient; Mobility; Remobilization.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000500014

Infoteca-e

GOEDERT, W. J..

bitstream/item/101009/1/doc-02.pdf

Tipo: Documentos (INFOTECA-E)

Palavras-chave: Production; Brasil; Consumption; Insumo agrícola; Micronutrient; Micronutriente; Phosphate fertilizers; Potash fertilizers.; Adubo; Consumo; Fertilizante; Fertilizante Nitrogenado; Fertilizante Potássico; Fosfato; Nitrogênio; Potássio; Produção.; Farm inputs; Fertilizers; Nitrogen fertilizers..

Ano: 1981

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549450

Copper supply and fruit yield of young Citrus trees: fertiliser sources and application methods

Bragantia

Hippler,Franz Walter Rieger; Boaretto,Rodrigo Marcelli; Teixeira,Luiz Antonio Junqueira; Quaggio,José Antonio; Mattos-Jr,Dirceu de.

ABSTRACT This study aimed to evaluate the fertiliser sources and application methods of copper (Cu) in citrus trees during the first years of fruit production. Two experiments were set up in an orchard with 3-year-old sweet orange trees, which were applied with three sources of Cu (nitrate, sulfate or EDTA) either via fertigation (Experiment 1) or via foliar sprays (Experiment 2). Regardless of the fertiliser source, Cu application via fertigation was not efficacious to increase the micronutrient concentration in leaves and, consequently, did not affect fruit yield. Conversely, foliar application of Cu, either as nitrate or sulfate, increased this nutrient level in leaves but when applied as copper nitrate, visual phytotoxicity symptoms were verified in...

Disponibilidade de boro e zinco para girassol (Helianthus annus L.)

Palavras-chave: Micronutrient; Nutritional status; Fertigation; Foliar application; Citriculture.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000200365

Efeito de aplicação de molibdênio no número de Azospirillum e na produção de Brachiaria decumbens.

MALAVOLTA, E.; BORGES, A. L.; VELOSO, C. A. C.; FABRICIO, A. S.; MUNIZ, A. S; VIEGAS, I. J. M..

Resumo 090.

Tipo: Separatas

Palavras-chave: Micronutriente; Disponibilidade; Sunflower; Fertilizer; Micronutrient; Disponibility.; Adubação; Boro; Girassol; Zinco.; Boron; Zinc..

Ano: 1992

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/401296

MIRANDA, C. H. B.; SEIFFERT, N. F.; DOBEREINER, J..

Foram obtidos aumentos de 19% na producao de materia seca 29% na producao de N total em Brachiaria decumbens cv. Basilisk (australiana) mantida sob pastejo com 2,5 ua/ha, em resposta a adubacao em 160 g de Mo/ha, na forma de molibdato de sodio. O experimento foi conduzido em um Latossolo Vermelho-Escuro fase Cerrado, fertilizado com P, K, Cu, Zn e B.O. periodo de avaliacao foi entre setembro/82 e abril/83. Levantamento quinzenais ocorrencia de Azospirillum spp. mostraram consistentemente maior numero de bacterias em raizes de plantas crescidas nas areas com Mo do que em areas sem este elemento.

Tipo: Artigo de periódico

Palavras-chave: Micronutriente; Production; Micronutrient; Brachiaria Decumbens; Fixação de Nitrogênio; Microbiologia; Molibdênio; Produção; Solo; Azospirillum; Microbiology; Molybdenum; Nitrogen fixation; Soil.

Ano: 1985

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/319605

Efeitos da temperatura de secagem do solo e extratores na solubilidade do manganês.

Effect of cadmium on growth, micronutrient concentration, and δ-aminolevulinic acid dehydratase and acid phosphatase activities in plants of Pfaffia glomerata

MIYAZAWA, M.; PAVAN, M. A.; BLOCH, M. F.; MARTIN NETO, L.; NOGUEIRA, A. R. de A..

Temperatura de secagem do solo e das soluções extratoras EDTA, CuCl2 e MgCl2 na solubilidade do manganes.

Tipo: Artigo de periódico

Palavras-chave: Metal de transição; Micronutrientes; Solo preparo; Transition metal; Micronutrient; Soil handling.

Ano: 1991

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/42600

Braz. J. Plant Physiol.

Skrebsky,Etiane C.; Tabaldi,Luciane A.; Pereira,Luciane B.; Rauber,Renata; Maldaner,Joseila; Cargnelutti,Denise; Gonçalves,Jamile F.; Castro,Gabriel Y.; Shetinger,Maria R.C.; Nicoloso,Fernando T..

Pfaffia glomerata (Spreng.) Pedersen plantlets were grown under different cadmium (Cd) concentrations (0, 20, 40, 60 and 80 μM) in a hydroponic system during 7 d. Plant growth, micronutrient, chlorophyll and carotenoid concentrations, as well as δ-aminolevulinic acid dehydratase (ALA-D; E.C.4.2.1.24) and acid phosphatase (AP; E.C.3.1.3.2) activities were then analysed. Cadmium concentration in both shoots and roots increased with increasing external Cd levels. Metal concentration was on average 12-fold greater in root than in shoot tissues. Root length was unaffected by Cd treatments. In contrast, dry weight of both shoot and roots increased significantly upon addition of 20 and 40 μM Cd. Moreover, shoot and total plant dry weight was only reduced in...

Effect of Organic Matter on Manganese Solubility

Palavras-chave: Brazilian ginseng; Carotenoid; Chlorophyll; Heavy metal; Micronutrient; Phytoremediation.

Ano: 2008

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202008000400004

BABT

Andrade,Emilene; Miyazawa,Mário; Pavan,Marcos A.; Oliveira,Edson L. de.

The objective of this study was to re-evaluate some aspects of the relative importance of organic matter on Mn solubility in acid soil conditions. Field study showed that black oats, oil seed radish, elephant grass, lupin, leucaena, and coffee leaves serving as mulch decreased Mn solubility as compared with bare soil. The decrease in Mn solubility with plant mulch was related to increase in soil moisture content. Laboratory study showed that increasing temperature from 25 to 100ºC increased Mn solubility and total soil organic carbon was little changed; from 150 to 200ºC increased both Mn solubility and organic carbon oxidation, and up to 300ºC decreased Mn solubility and stoped organic carbon oxidation . Aluminum solubility always increased with...