PHOSPHATE SUPPLIES
Investigation In Dominion
Development of phosphate deposits, now that the war lias extended into the Pacific area and made the obtaining of supplies difficult, is under investigation in New Zealand, which uses about 300,000 tons a year, for fertilizer. Phosphate product mu, in various forms, has been proceeding for some time, but. it is hoped Io make far more extensive use .6' the resource.:, available. Before Nauru Island was worked, a phosphate deposit at Clarendon, near Milton, in the South Island, I’ad produced 140,000 tons, the output in the best year being 12,000 tons. Before the outbreak of war, New Zealand imported basic slag from Belgium. This had 14 per cent, 'of phosphorus pentoxide, but a similar slag, to the extent of about 20,090 tons yearly is now being made in the North Isiand from limestone mixed with Naur i phosphate.
Supplies of potash are very essential |o agriculture in New Zealand. but though their production is a technical possibility, it is staled io be uneconomic There are large amounts in the green sands which occur in I ’anterluiry and Otago.
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https://paperspast.natlib.govt.nz/newspapers/DOM19420418.2.76
Bibliographic details
Dominion, Volume 35, Issue 173, 18 April 1942, Page 8
Word Count
183PHOSPHATE SUPPLIES Dominion, Volume 35, Issue 173, 18 April 1942, Page 8
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