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Registros recuperados: 144
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A Meta-Analysis of the Impact of Foliar Feeding of Micronutrients on Productivity and Revenue Generation of Forage Crops Planta Daninha
IQBAL,M.A.; ABDUL,H.; MUZAMMIL,H.S.; IMTIAZ,H.; TANVEER,A.; SAIRA,I.; ANSER,A..
ABSTRACT: Food security assurance to meet the demands of increased population growth requires a proportional increase in milk and meat production which, in turn, depends on animal nutrition. Assessing foliar application of micronutrients for production of substantive quantities of good quality forage must be a goal of modern, profit-oriented, sustainable agriculture and plants with better competitive ability as compared to weeds. This meta-analysis made a quantitative and qualitative analysis of the impact of foliar feeding of micronutrients (iron, zinc, copper, sulfur and boron) on forage crops under varying pedo-climatic conditions. Weighted and unweighted meta-analyses were performed on 139 studies to evaluate 19 independent variables (9 qualitative, 5...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Economic returns; Plant nutrition; Sprays; Weighted meta-analysis; Zinc.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100245
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Absorption curves - mineral-extraction under an aeroponic system for white chrysanthemum (Dendranthema grandiflorum (Ramat.) Kitam. cv. Atlantis White) Acta Agron. (Palmira)
Chica Toro,Faber de Jesús; Garzón-González,Jorge M..
Abstract The aim of this study focused on the construction of the absorption and extraction curves under an aeroponic system for White chrysanthemum cv. Atlantis White, and therefore, propose the periods of maximum and minimum nutrient accumulation from aboveground, root and total biomass. Vegetative cycle of the plant, measured from the day after transplantation (dat) to aeroponic system, and the first day of court lasted 49 days. Evaluations were carried out each week on plants, in absolute competition. For the average aboveground biomass, three replicates were recorded. To obtain total root biomass only one sample, was measured. Therefore, total biomass in average, had achieved 130.9313 g.plant-1, where 72.26% (94.163 g) corresponded to the aboveground...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Macronutrients; Nutrient balance (plants); Nutritional status; Ornamental species; Plant development stage; Plant nutrition; Plant soil relations.
Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000100086
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Acúmulo de nutrientes em cana-de-açúcar cultivada em diferentes locais do Cerrado (2009). Infoteca-e
MULLER, J. A.; CARGNIN, A.; REIN, T. A.; MELLO, F. D. A.; FOGAÇA, C. M.; PIERDONÁ, R..
bitstream/item/78059/1/p2009-002.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Cana-de-açúcar; Saccharum officianrum; Savanna.; Cerrado; Npk.; Plant nutrition; Sugarcane..
Ano: 2009 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/747776
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Adubação com micronutrientes no cerrado. Infoteca-e
RESENDE, A. V. de.
ABSTRACT: Micronutrients availability is na important constraint for crops in the Cerrado region, and its correction is always needed to obtaining economic yields. Old and new nutritional problems came with the agriculture expansion in Cerrado. Although being crucial for increasing the crop production, research efforts in this topic are far from being sufficient. A comprehensive review of the available knowledge on micronutrients management under Cerrado conditions is presented in this work.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Nutrient deficiences.; Adubação; Cerrado; Deficiência Nutricional; Fertilidade do Solo; Nutrição Vegetal; Solo.; Fertilizer application; Plant nutrition; Soil; Soil fertility..
Ano: 2003 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568036
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Agronomic performance of Italian zucchini as a function of phosphate fertilization AGRIAMBI
Souza,Francisco I. de; Grangeiro,Leilson C.; Souza,Valdívia de F. L. de; Gonçalvez,Francisco das C.; Oliveira,Fábio H. T. de; Jesus,Priscila M. M. de.
ABSTRACT The objective of this research was to evaluate the agronomic performance of Italian zucchini as a function of phosphate fertilization. The experiments were carried at the Rafael Fernandes Experimental Farm, Federal Rural University of the Semi-Arid Region, Mossoró, RN, Brazil, from August to November 2015 and from July to September 2016. The experimental design was randomized blocks in 2 x 5 factorial scheme, with four replicates. The treatments consisted of the combination of two cultivars (Caserta and Alícia) and five doses of phosphorus (0, 40, 78, 120 and 150 kg ha-1 of P2O5). Phosphorus doses associated with the maximum marketable yields estimated were smaller for Alícia than for Caserta in the period from August to November 2015. In the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cucurbita pepo L.; Plant nutrition; Yield.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000300206
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Agronomic performance of lettuce subjected to green manure with different leguminous species AGRIAMBI
Sarmento,José J. A.; Santos,José J. F. dos; Costa,Caciana C.; Bomfim,Marinês P..
ABSTRACT Green manure is the practice of cultivation and incorporation of plants to the soil, mainly leguminous species, produced or not in situ, for the purpose of preserving and/or restoring soil organic matter and soil nutrients. To compare the effects of incorporating leguminous species in the pre-planting green manure on lettuce production, seven treatments were tested: mineral fertilization; crotalaria (Crotalaria juncea); cowpea (Vigna unguiculata); common bean (Phaseolus vulgaris); lablab bean (Dolichos lablab); pigeon pea (Cajanus cajan) and spontaneous plants. The treatments were arranged in the randomized blocks, with five repetitions. The experiment was conducted in the experimental area of the CCTA/UFCG, in the period from April to December...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lactuca sativa; Nutrient cycling; Plant nutrition; Yield.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000200114
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Agronomic yield and quality of industrial tomatoes under NPK doses AGRIAMBI
Almeida Neta,Maria N.; Mota,Wagner F. da; Pegoraro,Rodinei F.; Pacheco,Maricelia C.; Batista,Caik M.; Soares,Marcela de C..
ABSTRACT High doses of nitrogen, phosphorus and potassium in irrigated systems may lead to an increase in the productivity of industrial tomatoes, but may also alter the final quality of the fruits. The objective of this was to evaluate the agronomic yield and post-harvest quality of industrial tomatoes, under NPK doses for climatic conditions of Northern Minas Gerais state, Brazil. The study was conducted in the city of Jaíba, MG, Brazil, in randomized block design with four repetitions in a 3 x 3 factorial scheme, consisting of three doses of N (90, 135 and 180 kg ha-1), of P (270, 405 and 540 kg ha-1) and of K (225, 337 and 450 kg ha-1), corresponding to 50, 75 and 100% of the fertilization recommendation; and three tomato hybrids: BRS Sena, Heinz 9553...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solanum lycopersicum; Plant nutrition; Low-growing tomato; Pulp yield.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000100059
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Ajmalicine Bioproduction in Catharanthus Roseus (L) G. Don Inoculated with Arbuscular Mycorrhiza and Fertilized with Nitrogen Rev. Bras. Ciênc. Solo
Monnerat,Cecília Silva; Freitas,Marta Simone Mendonça; Vieira,Ivo José Curcino; Martins,Marco Antônio; Carvalho,Almy Junior Cordeiro de; Santos,Paulo Cesar dos; Lima,Thaísa Capato.
ABSTRACT Catharanthus roseus (L) G. Don (Madagascar periwinkle) belongs to the Apocynaceace family and is widely spread throughout tropical and subtropical regions of the world. The plant produces several important alkaloids, such as ajmalicine and serpentine, which are used in the treatment of circulatory diseases. The potential of inoculation with arbuscular mycorrhizal fungi (AMF) and nitrogen fertilization to enhance the production of alkaloids was investigated in periwinkle. A greenhouse experiment was carried out to evaluate the effects of arbuscular mycorrhizal fungi and N fertilizer dosages on plant growth, production of ajmalicine, and nutrient content in roots. The concentration of ajmalicine was determined by reverse-phase high-performance...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Periwinkle; Apocynaceae; Alkaloids; Plant nutrition.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100416
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Aplicação de fertilizantes via fertirrigação. Infoteca-e
SILVA, D. J..
Fertirrigação e nutrição de plantas; Solubilidade dos fertilizantes; Compatibilidade dos fertilizantes; Efeito do fertilizantes no pH da solução e no pH do solo; Salinidade e potencial salino dos fertilizantes; Algumas características do fertilizantes.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Aplicação; Nutrição de planta; Tolerância; Resistance.; Irrigação; Fertilizante; Fertirrigação; Salinidade.; Fertigation; Fertilizer application; Irrigation; Plant nutrition; Salinity..
Ano: 2000 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134003
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Arugula production as a function of irrigation depths and potassium fertilization AGRIAMBI
Freitas,Elis M. de; Giovanelli,Luan B.; Delazari,Fábio T.; Santos,Márcio L. dos; Pereira,Silvio B.; Silva,Derly J. H. da.
ABSTRACT Arugula is a vegetable that has gained more highlight in the consumption, being rich in potassium, sulfur, iron, omega-3 and vitamins A and C. Availability of water and nutrients are limiting factors for production of this crop. In this context, the objective of this study was to evaluate the production of arugula subjected to different irrigation depths and potassium fertilization. The experiment was conduct between August and September 2015. The experimental design was completely randomized in split-plot scheme. Irrigation depths L1, L2, L3 and L4 (25, 50, 75 and 100% of crop evapotranspiration, respectively) represented the plots and potassium doses K1 and K2 (200 and 400 kg ha-1, respectively) represented the subplots. Although the highest...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Eruca sativa L.; Drip tape; Plant nutrition.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000300197
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Aspectos nutricionais em pinhão-manso. Infoteca-e
KURIHARA, C. H.; LIMA FILHO, O. F. de; SILVA, C. J. da; KIKUTI, H.; BINOTTI, F. F. da S..
bitstream/item/203024/1/Livro-Pinhao-p.-204-227.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E) Palavras-chave: Pinhão manso; Matéria Seca; Nutrição Vegetal; Jatrofa; Dry matter content; Nutrition; Plant nutrition; Biodiesel.
Ano: 2019 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1113201
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Assessing the Content of Micronutrients in Soils and Sugarcane in Different Pedogeological Contexts of Northeastern Brazil Rev. Bras. Ciênc. Solo
Silva,Rita de Cássia Ferreira da; Silva,Fernando Bruno Vieira da; Biondi,Caroline Miranda; Nascimento,Clístenes Williams Araújo do; Oliveira,Emídio Cantídio Almeida de.
ABSTRACT Micronutrient research for sugarcane in northeastern Brazil is scarce and most works on this issue date back to the 70’s and 80’s. The objectives of this study were to assess the available and reserve pools of Fe, Mn, Cu, and Zn in soils cultivated with sugarcane under three geological contexts in northeastern Brazil as well as to diagnose the micronutrient nutritional status of sugarcane grown on these areas in order to identify pedogeological conditions in which micronutrient deficiencies are likely. Results showed that the soils cultivated with sugarcane in the states of Paraíba and Pernambuco posed available and reserve contents of micronutrients related to the parent materials and soil textural classes. The reserve contents of Fe, Mn, Zn, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil fertility; Trace elements; Plant nutrition; Critical levels.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100522
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Atributos do solo e qualidade de frutos nos sistemas convencional e orgânico de produção de maçãs no Sul do Brasil1 Rev. Ciênc. Agron.
Amarante,Cassandro Vidal Talamini do; Rosa,Eliete de Fátima Ferreira da; Albuquerque,Jackson Adriano; Klauberg Filho,Osmar; Steffens,Cristiano André.
O presente estudo teve como objetivo avaliar as características físicas, químicas e biológicas do solo, a composição mineral e a qualidade de frutos, em pomares de maçãs 'Royal Gala' conduzidos sob os sistemas de produção convencional (CON) e orgânico (ORG), em um Nitossolo Háplico. Na linha de cultivo das plantas, o solo no ORG apresentou melhor qualidade física (maiores valores de estabilidade dos agregados, condutividade hidráulica saturada e porosidade total, e menor densidade), química [menor acidez e maiores valores de Ca e Mg trocáveis, carbono orgânico total (COT) e nitrogênio total (NT)] e biológica [maiores valores de carbono da biomassa microbiana (Cmic) e relação Cmic/COT], na camada de 0-20 cm, quando comparado ao CON. Como no ORG não foram...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Malus domestica (Borkh); Soil attributes; Plant nutrition; Fruit postharvest.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000100099
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Avaliação agrotécnica dos seringais Marathon, São Francisco e Santana, situados no município de São Francisco do Pará: relatório técnico. Infoteca-e
PINHEIRO, E.; SILVA, H. M. e; VIEGAS, I. de J. M.; VALENTE, M. A..
bitstream/item/190735/1/FL-01567.pdf
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Caracteristica agronomica; Sao Francisco do Pará; Pará; Brasil; Agronomic characters; Production data; Fisiologia Vegetal; Hevea Brasiliensis; Nutrição Vegetal; Produção; Seringueira; Solo; Amazonia; Plant nutrition; Plant physiology; Plant protection.
Ano: 1997 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375569
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Avaliação da infestação de insetos-praga associados à batata (Solanum tuberosum L.) sob efeito de nutrientes nitrogenados e potássicos e teores acumulados de aminoácidos livres nas cultivares Achat e Monalisa Rev. Bras. entomol.
Azeredo,Edson Henrique de; Cassino,Paulo Cesar Rodrigues; Lima,Eduardo.
Evaluation of insect-pest infestation associated to potato (Solanum tuberosum L.) under effect of nitrogen and potassium fertilizers and the accumulated amount of free aminoacids in Achat and Monalisa cultivars. The objective of this work was to evaluate the occurence of insect-pests on potato plants influenced by dosages of nitrogen and potassium accumulated in plant organs. A total of 169 plants of the Achat and Monalisa cultivars were evaluated to determine the presence-absence of Diabrotica speciosa Germar, 1824 and Agrotis ipsilon Hüfnagel, 1767. The experiment was carried out and executed at the Universidade Federal Fluminense, and the delineation was complete randomized block design, with four replication and nine treatments, using three...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diabrotica speciosa; Agrotis ipsilon; Damage level; Monitoring; Plant nutrition.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262002000100002
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Avaliação de doses e produtos corretores da acidez em variáveis biométricas na produção de mudas de maracujazeiro - DOI: 10.4025/actasciagron.v31i4.529 Agronomy
Souza, Henrique Antunes de; UNESP; Ramos, José Darlan; UFLA; Melo, Paulo César de; UFLA; Hafle, Oscar Marianao; IFET-PB; Rodrigues, Helen Cristina de Arruda; Santos, Veronica Andrade dos; UFLA.
A utilização de produtos corretores da acidez do solo e a crescente busca por novos insumos agrícolas são de suma importância para uma agricultura sustentável e ecologicamente viável. O presente trabalho foi conduzido no viveiro de mudas do Setor de Fruticultura da Universidade Federal de Lavras, Lavras, Estado de Minas Gerais. O delineamento experimental utilizado foi blocos casualizados em esquema fatorial 3 x 4, sendo três produtos, quatro doses e três repetições, as doses foram calculadas de modo que se atingisse a saturação estabelecida, de acordo com a concentração de cada produto. As doses foram: zero, metade, completa e o dobro da dose recomendada. A incubação foi realizada para o silício e calcário, e o Lithothamnium, pela liberação rápida, foi...
Palavras-chave: 5.01.03.04-0 Produção de Mudas Passiflora spp.; Nutrição de plantas; Desenvolvimento Passiflora spp.; Plant nutrition; Development.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/529
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Avaliação do protocolo do LQAS da Embrapa Cerrados para análise da disponibilidade de metais em solos ultramáficos, determinados pelo método DTPA (2009). Infoteca-e
BONFIM, L. dos S.; MUNIZ, D. H. de F.; ANDRADE, L. R. M. de; AQUINO, F. de G..
bitstream/item/78068/1/p2009-010.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Química dos solos; Metais; Micronutrients; Assessment laboratory protocol.; Laboratório.; Plant nutrition; Soil; Soil chemistry..
Ano: 2009 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/736943
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Biodegradable oil-based polymeric coatings on urea fertilizer: N release kinetic transformations of urea in soil Scientia Agricola
Bortoletto-Santos,Ricardo; Guimarães,Gelton Geraldo Fernandes; Roncato Junior,Vanderlei; Cruz,Diego Fernandes da; Polito,Wagner Luiz; Ribeiro,Caue.
ABSTRACT: Polymer coatings are used to control the rate of release of plant available nutrients from fertilizers as well as to reduce nutrient losses such as ammonia (NH3) volatilization. Although the literature presents several examples of materials used to coat urea, little is known about nitrogen (N) release properties such as the mechanism involved and phenomena (e.g., pore opening) in the polymer coating. Thus, this study investigated urea release from polyurethane (PU) derived from two renewable raw materials (castor oil and soybean oil), to explain how the oil structure and coating microstructure influence release and urea-N dynamics in soil. The results demonstrated that the profile of urea release and the urea-N mineralization in the soil could be...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Polyurethane; Controlled release; Plant nutrition; Soil fertility; Nitrogen.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000101402
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Boron nutrition and yield of alfalfa cultivar crioula in relation to boron supply Scientia Agricola
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...
Tipo: Info:eu-repo/semantics/article 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
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Brachiaria sp yield and nutrient contents after nitrogen and sulphur fertilization Rev. Bras. Ciênc. Solo
Heinrichs,Reges; Grano,Fernanda Grecco; Bueno,Leda Gobbo de Freitas; Soares Filho,Cecílio Viega; Fagundes,Jailson Lara; Rebonatti,Melina Daniel; Oliveira,Katia de.
Among the production factors, adequate fertilization is an important tool to raise the productivity of pastoral systems and consequently increase the share of Brazil in the supply chain of primary agricultural products at the global level. The objective of this study was to evaluate the interaction of nitrogen and sulfur fertilization in BRACHIARIA DECUMBENS: Stapf. The experiment in pots with Dystrophic Oxisol was evaluated in a completely randomized design with four replications in a 5 x 3 factorial arrangement, involving five N doses (0, 100, 200, 400, and 800 mg dm-3) in the form of ammonium nitrate and three S doses (0, 20 and 80 mg dm-3) in the form of calcium sulfate, with a total of 15 treatments. In the treatments with low S dose, calcium was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fertilization; Brachiaria decumbens; Plant nutrition; Forage plants.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000400017
Registros recuperados: 144
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