Soybeans were mostly modestly lower on spread trade and profit taking after a wide-ranging session. Most forecasts have much-needed rain this week in parts of South America, but longer-term outlooks are uncertain because of La Nina. The USDA will likely lower production estimates for Argentina and Brazil Tuesday because of the drier than normal weather during planting and development and will probably also lower U.S. ending stocks because of strong demand. Safras e Mercado says 57.7% of Brazil’s new soybean crop has been sold, well ahead of both last year and the average.

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