Results 71 to 80 of about 31,326 (237)

Relationship Between Available Fe and its Chemical Fractions in Some Calcareous Soils of East Azarbaijan Province

open access: yesعلوم آب و خاک, 2017
In this research available iron was measured in 21 calcareous surface soil samples (0-30 cm) by five methods including DTPA, AB-DTPA, AC-EDTA, hydroxylamine, reference ammonium oxalate and rapid ammonium oxalate.
A. Reyhanitabar   +2 more
doaj  

One-year observations of size distribution characteristics of major aerosol constituents at a coastal receptor site in Hong Kong – Part 1: Inorganic ions and oxalate [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Size distribution data of major aerosol constituents are essential in source apportioning of visibility degradation, testing and verification of air quality models incorporating aerosols.
Q. Bian, X. H. H. Huang, J. Z. Yu
doaj   +1 more source

Haze in the Klang Valley of Malaysia [PDF]

open access: yes, 2003
Continuous measurements of dry aerosol light scattering (Bsp) were made at two sites in the Klang Valley of Malaysia between December 1998 and December 2000.
Ayers, G. P.   +4 more
core   +2 more sources

Boron availability and fertilizer response of maize in soils from sub‐Saharan Africa

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
Abstract Background and aims Low boron (B) availability is associated with strongly weathered, coarse‐textured, and low organic matter soils, widespread in sub‐Saharan Africa (SSA). It is unknown to what extent B fertilization can increase maize yields in SSA.
Mirjam S. Breure   +5 more
wiley   +1 more source

An Increase Incidence in Uric Acid Nephrolithiasis: Changing Patterns [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2016
Introduction: Nephrolithiasis is a complex disease affecting all age groups globally. As the causative factors for nephrolithiasis rises significantly, its incidence, prevalence and recurrence continues to baffle clinicians and patients.
Asha Kumari   +7 more
doaj   +1 more source

Passivation of high temperature superconductors [PDF]

open access: yes, 1991
The surface of high temperature superconductors such as YBa2Cu3O(7-x) are passivated by reacting the native Y, Ba and Cu metal ions with an anion such as sulfate or oxalate to form a surface film that is impervious to water and has a solubility in water ...
Vasquez, Richard P.
core   +1 more source

Salt‐induced nutritional and metabolic shifts in halophytes: implications for food security

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Plant species vary in their response to salinity: some crops show a degree of salt tolerance, while halophytes – whether wild or cultivated – are characterized by a high capacity to thrive under saline conditions. Halophytes are considered a source of valuable secondary metabolites with potential economic value, yet they might also produce ...
Giulia Atzori   +9 more
wiley   +1 more source

Batch cooling solution crystallization of ammonium oxalate in the presence of impurities: Study of solubility, supersaturation, and steady-state inhibition [PDF]

open access: yes, 2013
International audienceCompared with equilibrium data in pure solvent, variations of solubility are frequently observed in the presence of dissolved impurities.
Févotte, Gilles   +2 more
core   +3 more sources

Optimizing germination and cultivation of edible halophytes using effluents from an IMTA system

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Halophytes offer nature‐based solutions to food insecurity and soil degradation, while their integration into integrated multi‐trophic aquaculture (IMTA) systems promotes circular economy practices. This study aimed to optimize the germination and cultivation of edible halophytic species, namely Limbarda crithmoides, Suaeda vera and
Viana Castañeda‐Loaiza   +5 more
wiley   +1 more source

The Automated Root Exudate System (ARES): a method to apply solutes at regular intervals to soils in the field. [PDF]

open access: yes, 2017
Root exudation is a key component of nutrient and carbon dynamics in terrestrial ecosystems. Exudation rates vary widely by plant species and environmental conditions, but our understanding of how root exudates affect soil functioning is incomplete, in ...
Baxendale, Catherine   +7 more
core   +3 more sources

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