Summary for the period July30-August 5, 2021. Wheat:  Net sales of 293,100 metric tons (MT) for 2021/2022 were down 5 percent from the previous week and 32 percent from the prior 4-week average. Corn: Net sales of 377,600 MT for 2020/2021 were up noticeably from the previous week and from the prior 4-week average.  Soybeans:  Net sales of 96,900 MT for 2020/2021 were up noticeably from the previous week and from the prior 4-week average.   Soybean Cake and Meal:  Net sales of 116,300 MT for 2020/2021 were down 14 percent from the previous week and up 29 percent from the prior 4-week average.   Soybean Oil:  Total net sales for 2020/2021, of 300 MT were down 89 percent from the previous week...