He also urged the provincial governments to continue taking necessary steps to ensure provision of basic items at affordable prices across the country.
The export cap that had been imposed at the start of the week was criticised by growers who said it would weigh on production. Argentina, the world's No. 3 corn exporter, is also the top international supplier of soymeal livestock feed.
The prime minister was apprised of the reduction in prices of sugar and flour, besides the positive effects of substantial price reduction of potato, onion and chicken.
The dollar surged versus most currencies, making dollar-priced soft commodities costlier for non US investors early in the day but shifted course, driving the sugar and cocoa markets.
That already accounts for the bulk of the total white sugar output of 1.2 million tonnes predicted by the union for the full harvest year, a drop of 15% compared to the previous year.
The USDA now expects the country to ship 271,750 more short tonnes of sugar to the United States in the season to a total of 1.16 million short tonnes.
There were new adjustments to US sugar production.