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Urea-nitric phosphate granular fertilizer
Industrial & Engineering Chemistry Research, 1989Etude du nouveau procede de fabrication (schema) a l'echelle du banc d'essai et a l'echelle pilote. Le procede est base sur l'acidulation d'une roche phosphatee avec de l'acide nitrique suivi par la formation de produits de l ...
Ronald E. Edwards +2 more
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Natural radioactivity in phosphate fertilizers
Fertilizer Research, 1996Radioactive materials, like uranium and radium, are normal constituents of the earth's crust. The radioactivity of phosphate rock is enhanced by geological processes. Exposure of workers and the public to radiation from phosphate rock and fertilizer is therefore not unlikely. The European Commission has issued a draft proposal for revision of the Basic
L. C. Scholten, C. W. M. Timmermans
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1985
Single superphosphate (SSP), also called normal or ordinary superphosphate or acid phosphate, has been the principal phosphate fertilizer for more than a century and supplied over 60% of the world’s phosphate as late as 1955. Since then its relative importance has declined steadily; in 1975 it supplied only 20% of the fertilizer phosphate in the ...
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Single superphosphate (SSP), also called normal or ordinary superphosphate or acid phosphate, has been the principal phosphate fertilizer for more than a century and supplied over 60% of the world’s phosphate as late as 1955. Since then its relative importance has declined steadily; in 1975 it supplied only 20% of the fertilizer phosphate in the ...
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Increasing soil phosphate availability and phosphate fertilizer efficiency
2023Phosphat ist ein wichtiger Nährstoff in der Landwirtschaft und wird als Dünger im Pflanzenbau sowie als Supplement in der Tierernährung eingesetzt. Die weltweiten Phosphatressourcen sind jedoch limitiert und gleichzeitig ungleich verteilt. Des Weiteren ist die Verfügbarkeit von Phosphat generell gering, da die Mehrheit des Phosphats in gebundener Form ...
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Phosphine as a Phosphatic Fertilizer
Nature, 1956Since ammonia gas has been highly satisfactory as a nitrogenous fertilizer it is surprising that there is no record of any experimental work on its analogue phosphine as a source of plant phosphorus. Phosphine has many obvious disadvantages; but the fact that it is more than ten times as concentrated as superphosphate, our standard arable phosphatic ...
F. Hunter, I. Thornton
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Processing phosphate ores into fertilizers
1986The International Fertilizer Development Center (IFDC) phosphate program has placed substantial emphasis on assisting developing countries in the evaluation and development of their indigenous deposits of phosphate rock, particularly those located in landlocked countries or more remote areas where transportation costs have made imported phosphates ...
Amitava H. Roy, Guerry H. McClellan
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Uranium in phosphate fertilizer production
2005The production of fertilizers from natural phosphate ore can lead to the redistribution of uranium and other radionuclides in products, by-products and residues and, hence, to environmental impacts and increased radiation exposures.
W. Eberhard Falck, Denis Wymer
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Biochar-based slow-release of fertilizers for sustainable agriculture: A mini review
Environmental Science and Ecotechnology, 2022Chongqing Wang
exaly
Nanotechnology-based controlled release of sustainable fertilizers. A review
Environmental Chemistry Letters, 2022Muhammad Bilal Khan Niazi +2 more
exaly