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The Phokas (ΦωκαΎ¶ς) family is represented in the supposed charter of 1182 by John Phokas, who is at the head of all three extant versions of the document. [10] The surname still appears in the 15th century, [11] but the most famous branch of the family is the extensive Kallergis clan, the leading family of the native Greek Orthodox nobility.
Excellence in Video (Formerly 'Use of Video'): an entry up to 10 minutes showing creative use of video to tell a story. Writing : up to three examples from the previous year, not exceeding 15 minutes, that demonstrate excellence in writing that conveys the feeling and significance of events to the listener or viewer.
Fertilizers are usually labeled with three numbers, as in 18-20-10, indicating the relative content of the primary macronutrients nitrogen (N), phosphorus (P), and potassium (K), respectively. More precisely, the first number ("N value") is the percentage of elemental nitrogen by weight in the fertilizer; that is, the mass fraction of nitrogen ...
The resultant nitric acid was then used for the production of synthetic fertilizer. A factory based on the process was built in Rjukan and Notodden in Norway, combined with the building of large hydroelectric power facilities. [13] The process is inefficient in terms of energy usage, and is today replaced by the Haber process. [14]
Depletion of this material would be a major complication for the fertilizer production sector. In 2010, IFDC geologist Steven Van Kauwenburgh estimated the world's supply of phosphate rock at 60 billion metric tons [12] in the publication World Phosphate Rock Reserves and Resources. By his estimates, global resources of phosphate rock suitable ...
Nutrien is a Canadian fertilizer company based in Saskatoon, Saskatchewan.It is the largest producer of potash, second largest producer of nitrogen fertilizer in the world and generally the 2nd largest in fertilizers worldwide.