CBOT农产品期货主力合约收盘多数下跌，大豆期货跌1.27%

Group 1 - The core viewpoint of the article indicates that the Chicago Board of Trade (CBOT) agricultural futures closed mostly lower on August 14, with soybean futures declining by 1.27% to 1031.00 cents per bushel, while corn futures increased by 0.31% to 398.50 cents per bushel, and wheat futures fell by 0.64% to 504.00 cents per bushel [1] Group 2 - Soybean futures experienced a significant drop of 1.27% [1] - Corn futures showed a slight increase of 0.31% [1] - Wheat futures declined by 0.64% [1]