Export Sales and Shipments for March 24-30, 2023   Wheat:  Net sales of 193,600 metric tons (MT) for 2022/2023 were up noticeably from the previous week, but down 5 percent from the prior 4-week average. Export shipments of 197,700 MT were down 36 percent from the previous week and 39 percent from the prior 4-week average.  Corn:  Net sales of 1,246,600 MT for 2022/2023 were up 20 percent from the previous week, but down 26 percent from the prior 4-week average. Export shipments of 1,136,800 MT were up 70 percent from the previous week and 8 percent from the prior 4-week average.  Soybeans:  Net sales of 155,300 MT for 2022/2023 were down 55 percent from the previous week and 42 percent from the prior 4...