Gypsum is a highly available calcium source that provides immediately available sulphate sulphur, according to Lindsay Head - an independent horticulture consultant.
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The Hound
Double standards
OPINION: Imagine if the Hound had called the Minister of Finance the 'c-word' and accused her of "girl math".
Debt monster
OPINION: It's good news that Finance Minister Nicola Willis has slashed $1.1 billion from new spending, citing "a seismic global…
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