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PHOSPHATIC MANURES.
Phosphatic manures are ' obtained from bones, bone ash, phosphatic rocks, guano deposits, and basie ;; slag, a waste product obtained from the process practised in Bessemer steel making. Phosphates are just as necessary to. plant growths as the. nitrogen and potash, but while the latter delay maturity, phos-, phates encourage it, and this slioavs how a properly balanced ration' evens up defects in other • manures.
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https://paperspast.natlib.govt.nz/newspapers/SUNCH19141128.2.8
Bibliographic details
Sun (Christchurch), Volume I, Issue 253, 28 November 1914, Page 2
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66PHOSPHATIC MANURES. Sun (Christchurch), Volume I, Issue 253, 28 November 1914, Page 2
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Acknowledgements
This newspaper was digitised in partnership with Christchurch City Libraries.
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