Farmers in Primavera do Leste and Campo Verde in Mato Grosso report that high temperatures and gaps between rains are affecting soybean development and creating uncertainty about yields. September rains had allowed early soybean planting, which supports prospects for the harvest and for second-crop corn and cotton.
Producers also reported higher production costs and pest management challenges.
Heat stress during early soybean growth in Mato Grosso, Brazil's largest soybean state, adds yield risk and supports soybean prices, though early planting partly offsets the concern.
After 1,085 past bullish weather events, Soybeans moved a median +0.3% over 5 sessions (55% higher; middle half -1.4% to +2.0%), 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.