Results 61 to 70 of about 670,416 (147)

A study of the root surface phosphatase activities of three species of higher plants: Juncus effusus, Phragnutes australis, and Typha latifolia [PDF]

open access: yes, 1993
The aim of this project was to investigate a possible link between environmental phosphorus status and the root surface phosphatase activities of three species of emergent macrophytes, with a view to assessing their potential for use as "biondicators ...
Luff, Heather
core  

Phosphorus in various depths of some virgin peat lands

open access: yesAgricultural and Food Science, 1956
In the present paper results are reported concerning the total content as well as solubility of organic and inorganic phosphorus in 122 peat samples which were collected from various depths of 30 peat lands.
Armi Kaila
doaj  

Response of the Invasive Cyanobacterium Raphidiopsis raciborskii to Iron and Phosphorus Concentrations in the Habitat: Effects on Growth and Cellular Phosphorus Distribution

open access: yesDiversity
Harmful Raphidiopsis raciborskii blooms threaten aquatic ecosystems via toxin production, hypoxia induction, and biodiversity loss. To elucidate the synergistic regulatory mechanisms of Fe3+ and phosphorus (P) in cyanobacterial growth, we used a sterile ...
Wenting Shen   +7 more
doaj   +1 more source

A meta-analysis of organic and inorganic phosphorus in organic fertilizers, soils, and water : implications for water quality

open access: yes, 2014
Phosphorus is known to be an important contributor to eutrophication of aquatic systems, but the role of organic phosphorus is often overlooked. This review uses a meta-analysis approach to investigate inorganic and organic phosphorus in organic ...
Haygarth, P.M.   +12 more
core   +1 more source

Effects of Nutrient Limitations and Watershed Inputs on Community Respiration in a Deep, Tropical Lake: Comparison of Pelagic and Littoral Habitats

open access: yesWater Resources Research, 2018
Community respiration and nutrient limitation are frequently studied in pelagic habitats; however, comparisons of these processes between littoral and pelagic habitats are less common and do not exist from mountain lake ecosystems in the tropics ...
Alecia Weisman   +3 more
doaj   +1 more source

Acúmulo de formas de fósforo em um argissolo com histórico de aplicações de dejetos suínos [PDF]

open access: yes, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-Graduação em Agroecossistemas, Florianópolis, 2011As sucessivas aplicações de dejetos de suínos ao longo dos anos podem provocar o acúmulo de ...
Guardini, Renato
core  

Analysis of phosphorus flux in reed beds at chemically dosed wastewater treatment works [PDF]

open access: yes, 2014
Phosphorus (P) as a macronutrient contributes to eutrophication. In the UK, iron (Fe) and aluminium (Al) salt dosing is a well-established wastewater treatment strategy for its removal. Small works with a population equivalent (p.e.) under 2,000 often
Barak, Jan
core   +2 more sources

Elevated effect of hydrothermal treatment on phosphorus transition between solid-liquid phase in swine manure

open access: yesResults in Engineering
The morphology and composition of phosphorus in biomass wastes are key factors in determining its potential for utilization. However, the morphological distribution and evolutionary mechanism of phosphorus during the hydrothermal conversion of biomass ...
Shiyu Xie   +4 more
doaj   +1 more source

Calcium‒phosphorus coprecipitation induced by Hydrilla verticillata photosynthesis: response to elevated phosphorus concentration and regulation by light intensity, inorganic carbon and calcium levels

open access: yesJournal of Freshwater Ecology
To evaluate whether photosynthesis-induced calcium‒phosphorus (Ca‒P) coprecipitation in Hydrilla verticillata can be harnessed for eutrophic freshwater phytoremediation, we conducted controlled light incubator experiments to determine how key ...
Ziying Li, Heyun Wang, Yi Zhou, Min Wang
doaj   +1 more source

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