Phosphate Fertilizers by Calcination Process - Action of Silica and Water Vapor on Phosphate Rock

1934 ◽  
Vol 26 (4) ◽  
pp. 406-412 ◽  
Author(s):  
D. S. Reynolds ◽  
K. D. Jacob ◽  
L. F. Rader
Keyword(s):  
Water Vapor ◽  
Phosphate Rock ◽  
Phosphate Fertilizers ◽  
Calcination Process

Phosphate Fertilizers by Calcination Process: Experiments with Phosphate Rock in Very Thin Layers1

1936 ◽  
Vol 28 (6) ◽  
pp. 678-682 ◽  
Author(s):  
D. S. Reynolds ◽  
H. L. Marshall ◽  
K. D. Jacob ◽  
L. F. Rader
Keyword(s):  
Phosphate Rock ◽  
Phosphate Fertilizers ◽  
Calcination Process

scholarly journals Looming Scarcity of Phosphate Rock and Intensification of Soil Phosphorus Research

2015 ◽  
Vol 39 (3) ◽  
pp. 637-642 ◽  
Author(s):  
Philippe C. Baveye
Keyword(s):  
Phosphate Rock ◽  
Rock Phosphate ◽  
Soil Phosphorus ◽  
Agricultural Practices ◽  
Phosphate Fertilizers ◽  
Soil P ◽  
The Past ◽  
Essential Resource ◽  
The Moment ◽  
Short Essay

In recent years, many researchers have claimed that world reserves of rock phosphate were getting depleted at an alarming rate, putting us on the path to scarcity of that essential resource within the next few decades. Others have claimed that such alarmist forecasts were frequent in the past and have always been proven unfounded, making it likely that the same will be true in the future. Both viewpoints are directly relevant to the level of funding devoted to research on the use of phosphate fertilizers. In this short essay, it is argued that information about future reserves of P or any other resource are impossible to predict, and therefore that the threat of a possible depletion of P reserves should not be used as a key motivation for an intensification of research on soil P. However, there are other, more compelling reasons, both geopolitical and environmental, to urgently step up our collective efforts to devise agricultural practices that make better use of P than is the case at the moment.

Greenhouse evaluation of phosphate fertilizers produced from Togo phosphate rock

1991 ◽  
Vol 22 (1-2) ◽  
pp. 63-73 ◽  
Author(s):  
K. Kpomblekou ◽  
S. H. Chien ◽  
J. Henao ◽  
W. A. Hill
Keyword(s):  
Phosphate Rock ◽  
Phosphate Fertilizers ◽  
Greenhouse Evaluation
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