2026.03.06：南美大豆,玉米主产区天气展望

Report Summary 1. Report's Industry Investment Rating - Not provided in the given content 2. Core Viewpoints of the Report - The overall harvest progress in Brazil is slow, but the high - yield trend remains unchanged, which may affect the arrival rhythm in the short term; the precipitation in the Argentine production area is low, which may impact the yield per unit [7][11] 3. Summary by Related Catalogs Soybean - Current Growth Situation: As of February 28, 2026, the soybean harvesting rate in Brazil's 2025/26 season was 41.7%, compared with 31.9% last week, 48.4% in the same period last year, and a five - year average of 38.4%. As of March 4, the proportion of soybeans in good condition was 30%, normal 44%, and fair or poor 26%. The proportion of soil with excessive moisture was 0%, beneficial to suitable 67%, and short to extremely short 33% [6] - Weather Forecast in the Next Two Weeks: In Brazil, there will be more precipitation in the central - eastern region, slightly less in the west, with showers/thunderstorms and a weekly cumulative precipitation of 50 - 120mm, locally exceeding 150mm. The southern production area will have less rain in the first half - week and turn rainy after March 14, with a cumulative precipitation of 20 - 60mm, still slightly less overall. In Argentina, the precipitation in the core production area is generally low, with only light showers from the 6th to the 10th day and a weekly cumulative precipitation of 10 - 40mm. The central - southern Buenos Aires and northern Santa Fe are dry, while the central - northern production area has acceptable precipitation [7] Corn - Current Growth Situation: As of February 28, 2026, the planting of Brazil's 2nd - season corn in the 2025/26 season was 64.9% complete, compared with 46.7% last week, 69.5% in the same period last year, and a five - year average of 57.2%. As of March 4, the corn harvest in Argentina has accelerated, reaching 7.2% (3.6% last week), and the overall growth of the crop is good, with an estimated yield of about 57 million tons [11] - Weather Forecast in the Next Two Weeks: Similar to soybeans, in Brazil, the central - eastern region will have more precipitation, the west slightly less, with showers/thunderstorms and a weekly cumulative precipitation of 50 - 120mm, locally exceeding 150mm. The southern production area will have less rain in the first half - week and turn rainy after March 14, with a cumulative precipitation of 20 - 60mm, still slightly less overall. In Argentina, the core production area has low precipitation, with only light showers from the 6th to the 10th day and a weekly cumulative precipitation of 10 - 40mm. The central - southern Buenos Aires and northern Santa Fe are dry, while the central - northern production area has acceptable precipitation [11]