Phosphorus Uptake
Mostrando 13-24 de 122 artigos, teses e dissertações.
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13. Phosphorus-Zinc Interaction and Iron and Manganese Uptake in the Growth and Nutrition of Phalaenopsis (Orchidaceae)
ABSTRACT: Visual symptoms of Zn deficiency, induced by excessive P applications, have been observed in commercial orchid nurseries. The supply of other metallic micronutrients, such as Fe and Mn, may also be inadequate in the plant due to high application rates of P. The aim of this study was to investigate this interaction in the nutrition of Phalaenopsis p
Rev. Bras. Ciênc. Solo. Publicado em: 15/12/2016
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14. Intraspecific variation in alkaline phosphatase activity in Phaeodactylum tricornutum (Bacillariophyceae, Bohlin)
ABSTRACT To describe potential intraspecific variation in phosphorus incorporation in two strains of Phaeodactylum tricornutum (Bohlin), Ub3 and Ub7, alkaline phosphatase (AP) activity was evaluated via enzyme-labeled fluorescence assay. Analysis using the probe ELF-97(r) provides individual evaluation, and therefore can determine the nutritional status of i
Acta Bot. Bras.. Publicado em: 25/08/2016
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15. Macronutrient Uptake and Removal by Upland Rice Cultivars with Different Plant Architecture
ABSTRACT Modern high-yielding rice cultivars possibly take up and remove greater quantities of macronutrients than traditional and intermediate cultivars. This study was carried out with the aim of evaluating the extraction and removal of macronutrients by upland rice cultivars. These information are of utmost importance for the correct fertilizer management
Rev. Bras. Ciênc. Solo. Publicado em: 23/06/2016
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16. Phosphorus distribution and availability in untreated and mechanically separated biogas digestates
ABSTRACT Biogas digestates contain valuable nutrients but also have high water contents. Di-gestates were sampled from two different biogas facilities before and after solid-liquid separation and were analyzed with regard to their composition and phosphorus (P) fractions. Additionally, to investigate the P fertilizer effects of these digestates in comparison
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-02
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17. Effect of arbuscular mycorrhizal fungi on young vines in copper-contaminated soil
Abstract High copper (Cu) levels in uprooted old vineyard soils may cause toxicity in transplanted young vines, although such toxicity may be reduced by inoculating plants with arbuscular mycorrhizal fungi (AMF). The objective of this study was to evaluate the effects of AMF on the plant growth, chlorophyll contents, mycorrhizal colonization, and Cu and phos
Braz. J. Microbiol.. Publicado em: 2015-12
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18. Determination of optimum levels of nitrogen, phosphorus and potassium of oil palm seedlings in solution culture
Balanced nutrient elements in fertilizer play a critical role in oil palm seedling successful growth and development, and at the same time reduces of fertilizer losses in the environment. This study examines the effect of different levels of N, P2O5 and K2O for oil palm seedlings in solution culture on growth traits, nutrient uptake in plant tissues and biom
Bragantia. Publicado em: 07/07/2015
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19. Isolation, morphological and molecular characterization of phytate-hydrolysing fungi by 18S rDNA sequence analysis
Phytate is the primary storage form of phosphate in plants. Monogastric animals like poultry, pigs and fishes have very low or no phytase activities in their digestive tracts therefore, are incapable to efficiently utilize phytate phosphorus from the feed. Phytase from microbial sources are supplemented to feedstuff of these to increase the uptake of phytate
Braz. J. Microbiol.. Publicado em: 07/05/2013
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20. Effectiveness of plant growth promoting rhizobacteria in facilitating lead and nutrient uptake by little seed canary grass
We investigated the effectiveness of Nitroxin inoculation on lead (Pb) and nutrient uptakes by little seed canary grass. The factors tested included inoculation (or not) with Nitroxin and different soil concentrations of Pb (0, 200, 400 and 800mgPbkg-1 soil). Increasing soil concentrations of Pb decreased stem, leaf and root dry weights. Shoot phosphorus con
Braz. J. Bot.. Publicado em: 2012
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21. Relative importance of uptake and utilization efficiency in phosphorus use efficiency in a red oxisol: following moll?s insights.
2006
CONGRESSO NACIONAL DE MILHO E SORGO. Publicado em: 2011
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22. Phosphorus acquisition and internal utilization efficiency in tropical maize genotypes.
The objective of this work was to determine the relative importance of phosphorus acquisition efficiency (PAE ? plant P uptake per soil available P), and phosphorus internal utilization efficiency (PUTIL ? grain yield per P uptake) in the P use efficiency (PUE ? grain yield per soil available P), on 28 tropical maize genotypes evaluated at three low P and tw
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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23. Genetic variability in inbred lines from a tropical maize germplasm under selection for phosphorus efficiency uptake.
2006
CONGRESSO NACIONAL DE MILHO E SORGO. Publicado em: 2011
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24. Corn growth and changes of soil and root parameters as affected by phosphate fertilizers and liming.
Soil and root parameters that influence nutrient uptake were evaluated in this study of comparing the effectiveness of phosphate fertilizers in an acid soil. North Carolina rock phosphate (RP), partially acidulated Togo rock phosphate (PA), monocalcium phosphate (MCP), and diammonium phosphate (DAP) were applied to limed (pH 5,6) or unlimed (pH4,6) soil samp
Pesquisa Agropecuária Brasileira. Publicado em: 2011