
Aprosoja MT has asked the Ministry of Agriculture and Conab to revise Mato Grosso crop estimates after a lack of rain forced some producers to replant. Rainfall for September to October is below the 26-year average, and planting is behind the five-year average.
The association says the water shortage threatens the 2025/26 harvest.
Possible downgrades to Mato Grosso, Brazil's largest soybean and corn state, would tighten export supply and support soybean and corn prices.
After 1,079 past bullish weather events, Soybeans moved a median +0.3% over 5 sessions (54% higher; middle half -1.4% to +2.0%), and +0.9% over 20.
After 1,465 past bullish weather events, Corn moved a median +0.2% over 5 sessions (54% higher; middle half -1.4% to +1.9%), and +0.9% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.