Phosphorus Fractions
Effects of air drying and freezing on phosphorus fractions in soils with different organic matter contents
... It is shown that air-drying significantly changed the phosphorus fractions in soils. The labile-P (especially resin-P) and organic-P (NaHCO 3 -Po, NaOH-Po and Con.HCl-Po) significantly increased at the ...
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SHORT COMMUNICATION SALINITY INDUCED CHANGES IN PHOSPHORUS FRACTIONS OF SUGARCANE LAMINAE ADVERSELY AFFECT SUCROSE CONTENTS
... optimum phosphorus requirement for growth is ...available phosphorus gets precipitated in form of tricalcium phosphate due to de-sorption and adsorption of phosphorus hindering its mobility and ...
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Distribution of phosphorus fractions with different plant availability in German forest soils and their relationship with common soil properties and foliar P contents
... Hedley fractions in sandy soils when compared with other soil texture types may be related to lower organic matter content, fewer possible fix- ation opportunities, ...
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Spatial Distribution and Environmental Significance of Phosphorus Fractions in River Sediments and Its Influencing Factor from Hongze and Tiaoxi Watersheds, Eastern China
... These results have impacted the environment of the different watersheds that flow into the lake. If environmental managers determine that P is a problem in the receiving watershed, they can manage the release of P. [32] ...
Does Soil Disturbance Affect Soil Phosphorus Fractions?
... In organic farming, compost and manure are important sources as P fertilizers. Compost/manure added to soil can enhance the availability of phosphorus through the direct release of P from the compost or indirectly ...
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A Dual Isotope Protocol to Separate the Contributions to Phosphorus Content of Maize Shoots and Soil Phosphorus Fractions from Biosolids, Fertilizer and Soil
... criterion. Phosphorus contents, dry weights and P concentration measures for the no fertilizer treatment were best represented by a three parameter asymptotic exponential ...
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Remobilisation of phosphorus fractions in rice flag leaves during grain filling: Implications for photosynthesis and grain yields
... The P containing compounds of the freeze-dried flag leaf subsample were fractionated into the following four fractions; lipid-P (i.e. phospholipids), metabolic-P (easily soluble P-con- taining metabolites such as ...
15
Exogenous phosphorus compounds interact with nitrogen availability to regulate dynamics of soil inorganic phosphorus fractions in a meadow steppe
... of phosphorus (P) compound addition on soil inorganic P transformations in the cal- careous grassland of Inner ...P fractions, plant P up- take and plant biomass as affected by fertilization across P ...
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Phosphorus Fractions in some Calcareous Soils of Egypt as Affected by Aging and their Properties
... of phosphorus in virgin and fertilized calcareous soils of Western ...on phosphorus distribution among the soil chemical fractions, pointed out that increasing soil disturbance and long-term ...
12
Phosphorus fractions in arable and mountain soils and their humic acids
... soil phosphorus occurs in insoluble or soluble but fixed forms (primary phosphate minerals, hu- mus P, Ca, Fe, and Al phosphates, phosphates fixed by colloidal oxides and silicate ...soil phosphorus forms ...
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Study on Phosphorus Characteristics in Sediments of Xiangxi Bay, China Three Gorge Reservoir
... different phosphorus fractions were determined using the sequential extraction scheme sug- gested by Psenner et ...(IP) fractions into loosely sorbed P (NH 4 Cl-P), redox-sensitive P (BD-P), metal ...
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The Composition of the Seminal Plasma of Balanus Balanus
... Residue on ignition Inorganic constituents Sodium Potassium Calcium Chloride Organic solids, by difference Nitrogen fractions TCA-soluble TCA-inaoluble Phosphorus fractions Total TCA sol[r] ...
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Regulation of phosphorus uptake and utilization: transitioning from current knowledge to practical strategies
... of phosphorus fertilizers results in low phosphorus use efficiency (PUE), has serious environmental consequences and accelerates the depletion of phosphorus mineral ...of phosphorus uptake and ...
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Eutrophication in coastal New Zealand lakes and the mitigation potential of phosphorus immobilization using clay based amendments
... of phosphorus from point sources, and they do not make up a large portion of the phosphorus entering waterways ("Hazardous Substances and New Organisms Act," ...of phosphorus are diffuse and ...
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Phosphorus Use Efficiency and Fertilizers: future opportunities for improvements
... soil phosphorus, to facilitate better ...to phosphorus fertilizers by farmers in terms of both affordability and availability are still fundamental issues, and likely to remain so in the future, but the ...
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Essays on socially optimal phosphorus policies in crop production
... for phosphorus applica- tions and vegetative filter strip use, both as functions of soil ...of phosphorus is differentiated in terms of soil ...soil phosphorus is on the optimal use of VFSs ...
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THE METABOLIC RESPONSE TO BURNS
... In the early postburn period, the theoretical phosphorus balance based on calcium and nitrogen consistently deviated from the observed phosphorus balance, so that the observed phosphorus[r] ...
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THE PHOSPHORUS TURNOVER OF CARCINOMA OF THE HUMAN STOMACH AS MEASURED WITH RADIOACTIVE PHOSPHORUS
... The phosphorus content and the rate of phosphorus turnover of non-cancerous gastric mucosa and of gastric carcinoma have been measured with the aid of radioactive phosphorus.. The rate o[r] ...
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THE PARATHYROID GLANDS AND PHOSPHORUS HOMEOSTASIS
... The influence of changes in dietary phosphorus intake on intact and parathyroidectomized animals Table I gives values for plasma inorganic phosphorus concentration, urinary phosphorus ex[r] ...
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Phosphorus biogeochemistry and models in estuaries: case study of the Southampton Water system
... In the oceans phosphorus can be regarded arbitrarily as being partitioned amongst a dissolved inorganic phosphorus DIP pool, a dissolved organic phosphorus DOP pool, and a particulate to[r] ...
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