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| Staut,Luiz Alberto; Athayde,Manoel Luiz Ferreira. |
| With the objective of studying the effect of increasing phosphorus and potassium doses on the agronomical and technological characteristics of the cotton (Gossypium hirsutum L.), cultivar IAC 20, an experiment was carried out during 1994/95 on a Red-Dark Latossol at the Embrapa-Centro de Pesquisa Agropecuária do Oeste (CPAO) in Ponta Porã, MS, Brazil. A randomized bloch design was used in a 3 x 5 factorial arrangement with four replications. The doses were 30, 60 and 90 kg ha-1 of P2O5, applied as triple superphosphate, and 0, 30, 60, 90 and 120 kg ha-1 of K2O as KCl. The K2O doses used had a significant influence on the seed cotton yield, plant height and weight of 100 seeds and of bolls. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Macronutrient; Fertilization; Gossypium hirsutum. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X1999001000010 |
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| SFREDO, G. J.; CARRAO-PANIZZI, M.C.. |
| Situacao da producao; Valor nutritivo da soja; Funcoes dos nutrientes: Macronutrientes (N, P, K, Ca, Mg e S) Nitrogenio, Fosforo, Potassio, Calcio, Magnesio, Enxofre e Micronutrientes (Fe, Mn, An, Cu, B, Mo, Cl, Ni e Co) Ferro, Boro, Cloro, Molibdenio, Cobre, Zinco, Manganes, Niquel, Cobalto; Exigencias nutricionais da soja: Extracao e exportacao de nutrientes, Acumulo de materia seca da planta, Acumulo de nutrientes na planta; Respostas da soja a nutrientes aplicados: Nitrogenio, Potassio, Enxofre, Molibdenio, Interacao entre nutrientes (Nitrogenio e Potassio, Fosforo e potassio, Nitrogenio e enxofre, Fosforo, enxofre e molibdenio, Enxofre e zinco). |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Macronutriente; Micronutriente; Brasil; Parana; Soybean; Fertilization; Macronutrient; Micronutrient; Grain; Quality.; Adubação; Fisiologia; Grão; Nutrição Vegetal; Qualidade; Soja.; Brazil; Plant nutrition.; Physiology. |
| Ano: 1990 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/448750 |
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| Moreira,Wiler Ribas; Bispo,Wilka Messner da Silva; Rios,Jonas Alberto; Debona,Daniel; Nascimento,Clístenes Williams Araújo; Rodrigues,Fabrício Ávila. |
| Brown spot (BS), caused by the fungus Bipolaris oryzae, is one of the most important diseases contracted by rice. We investigated the effect of magnesium (Mg) on the development of BS, caused by Bipolaris oryzae, and the effects of disease development on the photosynthetic performance of rice (Oryza sativa L.) plants (cv. Metica-1) grown in nutrient solutions containing 0.25 or 4.0 mM of Mg. Assessments of BS severity, leaf Mg and pigment concentrations (total chlorophylls and carotenoids), were carried out at 120 h after inoculation, in addition to gas exchange parameters,. Higher leaf concentration of Mg was observed in plants supplied with 4.0 mM Mg than in those supplied with 0.25 mM. The increase in leaf Mg was accompanied by a decrease in BS... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa; Foliar disease; Macronutrient; Photosynthesis; Plant nutrition. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000400328 |
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| Fernandes,Katiúcia Dias; Paiva,Patrícia Duarte de Oliveira; Carvalho,Janice Guedes de; Resende,Aiesca Cecília; Figueiredo,Madeleine Alves de. |
| Multiple nutritional deficiencies are considered one of several factors that can induce doubt in the diagnosis based only in visual symptoms, because it makes identification more difficult. The aim of this work was to evaluate the development of Zantedeschia and the morphological changes resulting from nutritional disorders caused by multiple and simple nitrogen and phosphorus deficiency in plants grown in nutrient solution. Zantedeschia plants were grown for a period of eight months in a complete Hoagland and Arnon (1950) solution, with nitrogen (-N) omission, with phosphorus (-P) omission, with nitrogen and phosphorus (-NP) omission, and also nutrient solution with N and P at concentrations of 25, 50 and 75%, totalizing 7 treatments, with 4 replicates in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zantedeschia aethiopica; Multiple omission; Macronutrient; Cut flower; Calla lily. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000600005 |
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| Pio, Rafael; Souza, Filipe Bittencourt Machado de; Coelho, Viviane Amaral Toledo; Rodas, Cleber Lázaro; Silva, Inêz Pereira da; Melo, Evaldo Tadeu de. |
| Brazil is one of the largest importers of olive (Olea europaea L.) products, being the fourth largest importer of olive oil and the fifth of olives. In recent decades the introduction and growing of olive cultivars less chilling requirement in the South and Southeast made viable the olives production in the country. On the other hand, there are still shortages of information about the management of this crop in our country, especially in relation to studies about the nutritional needs of the olive tree, grown in subtropical regions, and it may enable advances in productivity of this fruit. The aim of study was to evaluate the growth, dry matter production and nutritional status of the olive tree under the effect of the omission of nutrients as well as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fitotecnia Olea europaea L.; Macronutrient; Micronutrient; Dry matter. Fruticultura. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39582 |
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| Pio, Rafael; Souza, Filipe Bittencourt Machado de; Coelho, Viviane Amaral Toledo; Rodas, Cleber Lázaro; Silva, Inêz Pereira da; Melo, Evaldo Tadeu de. |
| Brazil is one of the largest importers of olive (Olea europaea L.) products, being the fourth largest importer of olive oil and the fifth of olives. In recent decades the introduction and growing of olive cultivars less chilling requirement in the South and Southeast made viable the olives production in the country. On the other hand, there are still shortages of information about the management of this crop in our country, especially in relation to studies about the nutritional needs of the olive tree, grown in subtropical regions, and it may enable advances in productivity of this fruit. The aim of study was to evaluate the growth, dry matter production and nutritional status of the olive tree under the effect of the omission of nutrients as well as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Olea europaea L.; Macronutrient; Micronutrient; Dry matter.; Fruticultura. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39582 |
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