Grain prices had been trending downwards since 2012 but have rallied more than 45% in six months, according to Vontobel Asset Management's head of commodities, Michel Salden. Reuters
Grain prices had been trending downwards since 2012 but have rallied more than 45% in six months, according to Vontobel Asset Management's head of commodities, Michel Salden. Reuters

Investors bullish on prospects for commodities




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