Precipitation of iron and aluminum phosphates directly from aqueous solution as a function of temperature from 50 to 200 C

T Roncal-Herrero, JD Rodríguez-Blanco… - Crystal Growth & …, 2009 - ACS Publications
The nucleation and crystallization of Al and Fe phosphate phases directly from aqueous
solutions were investigated experimentally in batch reactors at 50 to 200° C and pH 1.6. The …

Review of Australian phosphate rock research

DC Lewis, MDA Bolland, RJ Gilkes… - Australian journal of …, 1997 - CSIRO Publishing
Most of the research on the effectiveness of phosphorus (P) fertilisers in Australia has
involved comparing phosphate rock (PR) or partially acidulated PR (PAPR) with …

A comparison of seven soil P tests for plant species with different external P requirements grown on soils containing rock phosphate and superphosphate residues

V Kumar, RJ Gilkes, MDA Bolland - Fertilizer research, 1992 - Springer
Seven soil tests for phosphate (P)(Bray 1, Bray 2, Truog, ammonium oxalate, Colwell, iron
oxide-strip (Pi) and resin-strip soil tests) were evaluated for predicting the yield of plant …

Evaluation of soil phosphate status where phosphate rock based fertilizers have been used

KW Perrott, S Saggar, RG Menon - Fertilizer research, 1993 - Springer
Soil phosphorus (P) tests have usually been calibrated using regression relationships
between test values and crop yields for soils with a history of soluble P fertilizer use …

Arbuscular mycorrhizal fungi from three genera induce two-phase plant growth responses on a high P-fixing soil

PF Schweiger, AD Robson, NJ Barrow, LK Abbott - Plant and soil, 2007 - Springer
Plant growth enhancing effects of arbuscular mycorrhizal (AM) fungi are suitably quantified
by comparisons of mycorrhizal and non-mycorrhizal plant growth responses to added …

Residual phosphate fertilizer compounds in soils: II. Their influence on soil tests for available phosphate

V Kumar, RJ Gilkes, MDA Bolland - Fertilizer research, 1991 - Springer
Six phosphate (P) compounds, including soil minerals and fertilizer residues, were extracted
with eight standard soil P-test reagents. In the absence of soil, the solubility of P differed …

Future directions for agricultural phosphorus research

FJ Sikora, PM Giordano - Fertilizer research, 1995 - Springer
A workshop was held in 1990 in Muscle Shoals, Alabama to discuss current and future
research on phosphorus in agriculture. Twenty four presentations were given in areas …

Phosphate fertilizer compounds in soils: Their influence on the relationship between plant yield and soil test value

V Kumar, RJ Gilkes, MDA Bolland - Communications in soil …, 1992 - Taylor & Francis
A pot experiment with a lateritic soil measured the relative effectiveness of monocalcium
phosphate (MCP) fertilizers and six phosphate (P) compounds which were used to represent …

Processus contrôlant les concentrations des phosphates dans les eaux naturelles

T Roncal-Herrero - 2009 - theses.fr
Résumé Le phosphore est un élément indispensable à la vie, provoquant notamment une
forte croissance des végétaux quand il est en forte concentration dans l'eau. Cette étude est …