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| Registros recuperados: 18 | |
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| FERREIRA, R. L. F.; SOUZA, R. J. de; CARVALHO, J. G. de; ARAÚJO NETO, S. E. de; MENDONÇA, V.; WADT, P. G. S.. |
| O experimento foi conduzido no Departamento de Ciência do Solo da Universidade Federal de Lavras ? UFLA, no período de junho a agosto de 2002. Objetivou-se avaliar a produtividade, o estado nutricional e a qualidade (classe de tamanho) de cultivares de alface cultivadas com doses de silicato de cálcio em vasos sob casa-de-vegetação. O delineamento experimental foi em blocos casualizados, com quatro repetições, com 1 planta/vaso, em esquema fatorial 3 x 4 + 3, sendo três cultivares de alface (Raider, Regina e Vera) e quatro doses de silicato de cálcio (0, 410, 1,000 e 2,000 mg dm-3); os tratamentos adicionais foram compostos pela aplicação de 820 mg dm-3 de carbonato de cálcio, para as três cultivares. O estado nutricional das plantas de alface foi avaliado... |
| Tipo: Artigo de periódico |
Palavras-chave: Normas DRIS; Leaf analysis; Análisis foliar; Silicato de cálcio; Análisis estadístico; Sistema integrado de formulación evaluación y monitoreo.; Rendimiento de los cultivos; Nutrición de las plantas; Lechuga; Fertilizantes minerales; Fertilidad del suelo; Estatus nutricional; Cultivos de invernadero; Nutrição vegetal; Alface; Lactuca sativa; Estufa; Estado nutricional; Análise foliar; Rendimento; Fertilidade do solo; Análise estatística; Método estatístico; Lettuce; Plant nutrition; Nutritional status; Greenhouse production; Crop yield; Soil fertility; Mineral fertilizers; Calcium silicate; Statistical analysis; Diagnosis and Recommendation Integrated System.. |
| Ano: 2010 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/873365 |
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| ARAÚJO, L. da S.; ARAÚJO, C. S. de; MUNIZ, P. S. B.; ANDRADE NETO, R. de C.; LUNZ, A. M. P.. |
| Apesar de apresentar condições edafoclimáticas favoráveis à passicultura, o estado do Acre não produz o suficiente para atender a demanda, necessitando importar frutos. Dessa forma, cresce a necessidade por mudas de qualidade, que garantam pomares vigorosos e incrementem a produtividade regional. Assim, este trabalho objetivou avaliar o efeito de diferentes doses de adubo de liberação lenta na produção de mudas de maracujazeiro. |
| Tipo: Parte de livro |
Palavras-chave: Maracujá amarelo; Yellow passion fruit; Maracuyá amarillo; Castanha do brasil; Adubo de liberação lenta; Osmocote; Embrapa Acre; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Adubo mineral; Producción de plántulas.; Fertilizantes de acción retardada; Fertilizantes minerales; Nuez del Brasil; Maracujá Peroba; Passiflora edulis flavicarpa; Muda; Produção; Substrato de cultura; Castanha do pará; Bertholletia excelsa; Campo Experimental.; Brazil nuts; Seedling production; Mineral fertilizers; Slow-release fertilizers; Passiflora edulis f. flavicarpa.. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1089652 |
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| FIDELIS, R. R.; SERAGLIO, N. A.; RAUBER, W. A.; MARQUES, K. R.; BORTOLON, L.; BORTOLON, E. S. O.; TAVARES, A. T.; ROTILI, E. A.; FREITAS, G. A. de; SOUZA, W. R. de; BARROS, H. B.; LEAL, T. H. V. L.; SOUSA, P. L. R.; BURIN, L. X.. |
| The objective of this work was to evaluate the application of kinetin associated with nitrogen in coverage on the agronomic characteristics and soybean yield. In the 2016/2017 harvest, a 6x2 factorial scheme was used, six doses of kinetin (0; 0.30; 0.60; 0.90; 1.20; 1.50 g ha−1) and two doses of N (20 and 40 kg ha−1) and in the 2017/2018 harvest, factorial scheme 5x2 was used, five doses of kinetin (0; 0.25; 0.75; 1.00; 1.25 g ha−1) and two doses of N (20 and 40 kg ha−1). Agronomic plant height characteristics, first pod insertion height, number of grains per plant, number of pods per plant, number of grains per pod, number of grains per pod, hundred-grain mass and grain yield were evaluated. The use of N alone and... |
| Tipo: Artigo de periódico |
Palavras-chave: Phytoregulator; Soja; Nitrogênio; Glycine Max; Características Agronômicas; Nutrição Vegetal; Soybeans; Cytokines; Mineral fertilizers. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129494 |
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| SOARES, D. dos S.; SILVA, E. A. da; CARVALHO, M. A. de F.; PEREIRA, F. A. C.; GUIMARÃES, R. J.. |
| In coffee plants, fertigation can be an alternative way to minimize the negative effects exerted by drought and maximize fertilizer use efficiency. However, the fertilization recommendations for fertigated coffee trees are still not very specific, and the recommendations for rainfed crops are used. In addition, little is known about the nutritional requirements for fertigated coffee trees that have undergone the low recepa pruning treatment. Thus, the objective of this study was to evaluate the effects of different levels of nitrogen (N), phosphorus (P), and potassium (K) fertilizers on leaf anatomy, physiology, and vegetative growth of fertigated coffee trees (Coffea arabica L.) that have been under the low recepa pruning treatment. During the first five... |
| Tipo: Artigo de periódico |
Palavras-chave: Anatomia Vegetal; Poda; Fertilizante; Nutriente Mineral; Coffea Arábica; Fertigation; Mineral fertilizers; Pruning. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1143374 |
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| Litchman, Gennadiy; Nukeshev, Sayahat. |
| The paper studies agricultural crops’ yield depending on quality of entering of mineral fertilizers. It is established that determining average productivity, under square-law dependence of yield on a dose, there is not necessity to set the law of fertilizers distribution across the field and will be sufficient to know expected value D and standard deviation sD. The paper considers approaches to economic-mathematical model of optimization of fertilizers’ doses at the differentiated entering. The produced result provides a new approach to the quality control in technological process of fertilizers application. Also, it allows formulating requirements to perspective technical means used for entering of mineral fertilizers. |
| Tipo: Journal Article |
Palavras-chave: Soil fertility; Mineral fertilizers; Crop yield; Response function; Agribusiness. |
| Ano: 2009 |
URL: http://purl.umn.edu/94557 |
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| SOUZA, C. P. C.; ABREU, C. A.; CUNHA, J. F. da; COSTA, G. M. da; ANDRADE, C. A. de. |
| Abstract: Alternative copper (Cu) sources could be used in fertilizer production, although the bioavailability of copper in these materials is unknown. The objective of this study was to evaluate the extractants neutral ammonium citrate (NAC), 2 % citric acid, 1 % acetic acid, 10 % HCl, 10 % H2SO4, buffer solution pH 6.0, DTPA, EDTA, water, and hot water in the quantification of available Cu content in several sources, relating them to the relative agronomic efficiency (RAE) of wheat grown in a clayey Latossolo Vermelho eutrófico (Oxisol) and Neossolo Quartzarênico (Typic Quartzipsamment). Copper was applied at the rate of 1.5 mg kg-1 as scrap slag, brass slag, Cu ore, granulated copper, and copper sulfate. The extractants 10 % HCl, 10 % H2SO4, and NAC... |
| Tipo: Separatas |
Palavras-chave: Difratometria de raios-X; Extrator; Micronutrientes; Micronutrients.; Cobre; Fertilizante; Trigo; Triticum aestivum; Resíduo industrial; Copper; Mineral fertilizers; Wheat; Industrial wastes; Extractors; X-ray diffraction.. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1034237 |
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| Hentz,Paulo; Corrêa,Juliano Corulli; Fontaneli,Renato Serena; Rebelatto,Agostinho; Nicoloso,Rodrigo da Silveira; Semmelmann,Claudio Eduardo Neves. |
| ABSTRACT Organic fertilizers derived from poultry litter and pig slurry are alternatives to mineral fertilizers in increasing soil nutrient availability. The aim of this study was to evaluate soil response, through characterization of organic C and available N, P, and K contents, and corn yield response to increasing amounts of poultry litter, pig slurry, and mineral fertilizers in an integrated crop-livestock production system (ICL) from 2011 to 2013. The experimental design consisted of randomized blocks in a 4 × 3 + 1 factorial arrangement with four replicates. The treatments consisted of four types of fertilizer, two organic (poultry litter and pig slurry) and two mineral, balanced with the same amounts of N, P and K as the organic fertilizers, one of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mineral fertilizers; Organic carbon; Nitrogen. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100535 |
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| Registros recuperados: 18 | |
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