SAO PAULO, Dec 1 (Reuters) - Brazil's soybean production is expected to reach 177.2 million metric tons in 2025/26, consultancy firm StoneX said on Monday, cutting its outlook by 0.9% from a November projection.

• The revision reflects productivity cuts in Mato Grosso and Goias states, which are major producers, despite a slight expansion in the planted area, StoneX said.

• "Irregular rainfall, especially in regions that account for a large share of Brazilian production, continues to impact production potential," it added in a statement.

• Despite the cut, the forecast still points to a record crop.

• The country's total corn crop is forecast to hit 134.4 million tons in 2025/26, StoneX said, lowering its estimate by 0.6%.

• The projection for the second corn crop was reduced by 1.1% to 105.8 million tons, as delays in the soybean cycle may affect the start of planting.

(Reporting by Fernando Cardoso; Editing by Gabriel Araujo)

((fernando.cardoso@thomsonreuters.com;))