Fast growth in grain output has outpaced storage, raising costs and forcing early sales.
The government has started an investigation as rising imports strain domestic rice production ahead of the planting season.
South Africa’s canola sector continues to grow, with farmers planning to expand plantings and push output to a new high.
New outlook points to lower grain and soybean imports as China leans more on local supply.
Governments across the region step up support as local rice struggles against cheaper imports.