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| Registros recuperados: 137 | |
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| Castro Cabrera, Rusbel. |
| El objetivo del presente trabajo fue evaluar la influencia de diferentes frecuencias de aplicación de nutrimentos minerales a través del fertirriego, sobre el crecimiento, desarrollo, rendimiento, calidad de fruto y contenido nutrimental en hoja y peciolo de papaya (Carica papaya L.) ‘Maradol’. Se utilizó un diseño experimental en bloques al azar con cinco tratamientos (3, 6, 12 y 24 días, como frecuencias de aplicación de la solución universal “Steiner” al 50%, en fertirriego, y aplicación de fertilizante granulado al suelo como testigo 150 150 150 kg ha-1 de N, P2O5 y K2O) y ocho repeticiones por tratamiento. Se evaluaron las variables altura de planta, numero acumulado de hojas, diámetro de tallo, altura del primer fruto, rendimiento, sólidos... |
| Tipo: Tesis |
Palavras-chave: Carica papaya; ‘Maradol’; Frecuencia de fertirriego; Nutrición mineral Carica papaya; Maradol; Frequency of ferti-irrigation; Mineral nutrition. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/1022 |
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| Castro Cabrera, Rusbel. |
| El objetivo del presente trabajo fue evaluar la influencia de diferentes frecuencias de aplicación de nutrimentos minerales a través del fertirriego, sobre el crecimiento, desarrollo, rendimiento, calidad de fruto y contenido nutrimental en hoja y peciolo de papaya (Carica papaya L.) ‘Maradol’. Se utilizó un diseño experimental en bloques al azar con cinco tratamientos (3, 6, 12 y 24 días, como frecuencias de aplicación de la solución universal “Steiner” al 50%, en fertirriego, y aplicación de fertilizante granulado al suelo como testigo 150 150 150 kg ha-1 de N, P2O5 y K2O) y ocho repeticiones por tratamiento. Se evaluaron las variables altura de planta, numero acumulado de hojas, diámetro de tallo, altura del primer fruto, rendimiento, sólidos... |
| Tipo: Tesis |
Palavras-chave: Carica papaya; Maradol; Frecuencia de fertirriego; Nutrición mineral; Maestría; Fruticultura; Frequency of ferti-irrigation; Mineral nutrition. |
| Ano: 2009 |
URL: http://hdl.handle.net/10521/1350 |
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| Silva,João B. L. da; Ferreira,Paulo A.; Justino,Flávio; Pires,Luanna C.; Toledo,Amanda S.. |
| This study aims to evaluate the leaf concentration of nitrogen and phosphorus correlated to the production of photoassimilates in beans plants (Phaseolus vulgaris L.) under high [CO2] and drought stress. The experiment was conducted in Viçosa (Brazil), during the period from April to July 2009, by using open-top chambers equipped with CO2 injection system. The drought stress was applied, through the irrigation suspension, during the period from flowering to maturation. The experimental design was randomized blocks in split-plot scheme with four replication, where the plots with plants grown in [CO2] of 700 mg L-1 and [CO2] environment of 380 mg L-1 and the subplots with plants with and without drought stress. The results were submitted to ANOVA and Tukey... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beans; Mineral nutrition; Photosynthesis; Climatic changes. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000500012 |
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| Santos,Gil R dos; Castro Neto,Manoel D de; Almeida,Hudson SM de; Ramos,Leandro N; Sarmento,Renato A; Lima,Saulo de O; Erasmo,Eduardo Andrea L. |
| Nitrogen fertilization is an important step for watermelon (Citrullus lanatus) production due to its influence over yield, fruit quality, and disease severity. Currently, the gummy stem blight (Didymella bryoniae) and the downy mildew (Pseudoperonospora cubensis) can be taken as the most important watermelon diseases, since they impose severe impairment to the crop. Furthermore, studies focusing on plant responses to nitrogen fertilization regarding fruit yield and quality, and disease resistance are rare. Hence, the present study aimed at evaluating the effect of nitrogen doses on fruit yield and quality, and on disease prevalence in watermelon. Two experiments were carried out at the Universidade Federal de Tocantins, employing sprinkler irrigation, in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrullus lanatus; Didymella bryoniae; Pseudoperonospora cubensis; Mineral nutrition; Production. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000300012 |
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| Tavares,Armando R; Young,Jorge Luiz M; Ori,Sandra S; Kanashiro,Shoey; Lima,Giuseppina PP; Chu,Edison Paulo; Suzuki,Rogério M. |
| In vitro cultivation is the main propagation method for the family Orchidaceae, whereas nitrogen is the most important nutrient in the culture media. This work was carried out to study the influence of different nitrogen concentrations on the in vitro growth of the orchid Phalaenopsis amabilis. Nitrogen concentrations varied by altering the ionic balance of the Murashige & Skoog (MS) culture medium. Plants, 360 days old, were cultivated in liquid MS, modified with 7.5, 15, 30, 45, and 60 mM N. After 180 days, we assessed plant and root length, number of leaves and roots, and fresh and dry weight of leaves, roots and plants. Treatments were assigned to completely randomized plots, with four replications. Plots consisted of five three-plant flasks.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phalaenopsis amabilis; MS; Mineral nutrition; Nitrogen. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000100020 |
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| Rattin,Jorge E.; Andriolo,Jerônimo L.; Witter,Márcio. |
| The nitrogen concentration in dry matter of the fifth leaf during growth of a greenhouse tomato crop was determined. Plants of hybrid Monte Carlo were grown in 4.5 L bags, using a commercial substrate, in a plant density of 3.3 plants m-2. A nutrient solution containing, in mmol L-1: KNO3, 4.0; K2SO4, 0.9; Ca(NO3)2, 3.75; KH2PO4, 1.5; MgSO4, 1.0; iron chelate 19. 10³, was used as reference. Microelements were added by a commercial mixture. The T3 treatment was equal to the reference nutrient solution, whereas in treatments T1, T2, T4 and T5 quantities of all nutrients from T3 were multiplied by 0.25, 0.50, 1.25 and 1.50, respectively. In each treatment, the volume of 1 L of nutrient solution was supplied to each plant once a week by fertigation.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Nutrients; Mineral nutrition; Fertilization. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362002000400023 |
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| Zuba,SN; Nogueira,WCL; Fernandes,LA; Sampaio,RA; Costa,CA. |
| The effect of alternative sources of nutrients was evaluated on yield, nutrition and fruit quality of tomato cv Santa Clara in an agro ecological system, under natural conditions in Montes Claros, Minas Gerais State, Brazil. The experimental design was of completely randomized blocks with seven treatments and four replications, using eight plants per experimental plot. The treatments comprised of 1) conventional fertilization with NPK; 2) organic compost + natural phosphate + rock dust, applied separately; 3) organic compost produced from the addition of natural phosphate and rock dust + green manure; 4) organic compost produced from the addition of rock dust + natural phosphate + green manure; 5) organic compost produced from the addition of natural... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Organic fertilization; Mineral nutrition. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000100009 |
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| Silva,Giovani O; Bortoletto,Antonio C; Carvalho,Agnaldo DF; Pereira,Arione S. |
| ABSTRACT Many potato producers for fry industry changed from the use of potassium chloride to potassium sulfate, as there is a concept that the use of this source improves tuber quality. The aim of this work was to evaluate the effect of these two potassium sources on yield, specific gravity and chip color of potato chipping cultivars. The experiment was carried out on a Dystrophic Red Latosol, in Canoinhas, Brazil, in spring season 2016. Treatments consisted of two potato cultivars, BRSIPR Bel and Atlantic, and two sources of potassium, chloride and sulfate, applied in the furrow at the planting time, in rates based on soil analysis. Experimental design was a randomized complete block in a split-plot arrangement with four replications. Main plots were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum tuberosum; Mineral nutrition; Fertilizer; BRSIPR Bel; Atlantic. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300395 |
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| FREITAS, D. A. F. de; GOMIDE, P. H. O.; RUFINI, M.; PENHA, H. G. V.; CARDOSO, E. L.; SILVA, M. L. N.; SANTOS, S. A.; CARVALHO, J. G. de. |
| Em experimento de casa de vegetação, cultivou-se Mesosetum chaseae Luces (grama-do-cerrado) em soluçãonutritiva, tendo como tratamentos a solução completa, as omissões individuais dos macronutrientes N, P, K, Ca, Mg, S e micronutrientes B, Zn, Fe e Mn. Fez-se o acompanhamento semanal da manifestação dos sintomas visuais de deficiência após o transplantio, além de medições biométricas tais como altura máxima, número de perfilhos e produção da matéria seca da parte aérea (MSPA) e da raiz (MSR) da grama-do-cerrado. A forrageira grama-do-cerrado mostrou-se mais exigente em N, P e Fe demonstrando sintomas de deficiência na fase inicial de crescimento. Para os índices biométricos e de produção analisados, todos apresentaram diferenças significativas entre os... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Nutrição mineral; Omissão de nutrientes; Native pasture; Mineral nutrition; Nutrient omission.; Pastagem Nativa.. |
| Ano: 2011 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/918555 |
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| Bellote, Antonio Francisco Jurado; Tomazello Filho, Mario; Dedecek, Renato Antonio. |
| The objective of this work was to evaluate the effect of mineral nutrients on tree growth and wood quality of Pinus taeda, on commercial plantation at 20 years after planting, on different soil types. Experimental plots were set, and from trees representing each population, stem disks were collected at different heights. Treegrowth, wood quality and growth ring parameters – tracheids diameter and radial density by X-ray densitometry – were analyzed and related to mineral nutrient contents. Results showed negative correlation among Mn and Mg stem disk contents and Pinus taeda tree growth; negative correlation was also obtained among Ca, Mg and Mn contents and tracheids dimensions and wood density. There was no correlation among N, P, K and B contents in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mineral nutrition; Wood density; Tracheids; Tree rings; Forest soils. Nutrientes minerais; Densidade da madeira; Traqueídeos; Anéis de crescimento; Solos florestais.. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/132 |
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| Olivieri de Nobile, Fabio; Paro, Gabriel Fernando; Farinelli, Rogério. |
| O objetivo deste trabalho foi avaliar a produção suspensa de porta-enxertos de seringueira com substrato em fertirrigação. Foram testados quatro tipos de soluções nutritivas em delineamento experimental inteiramente casualizado, com 5 repetições. A fertirrigação foi realizada a cada dois dias, utilizando-se 200 mL da solução por recipiente. Avaliou-se altura de planta, diâmetro de caule (5 cm acima do colo da planta), área foliar, número de par de folhas, matéria seca da parte aérea e raízes, teor foliar de nutrientes e porcentagem de plantas aptas à enxertia. Os maiores valores para altura de plantas, número de pares de folhas, diâmetro de caule e área foliar dos porta-enxertos foram obtidos com a concentração mais elevada de nutrientes. O teor foliar de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nutrição de Plantas; Engenharia Floretal Adubação de Culturas Crescimento; Hevea brasiliensis; Nutrição Mineral Growth; Hevea brasiliensis; Mineral nutrition. |
| Ano: 2017 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1347 |
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| Registros recuperados: 137 | |
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