Corn Heavy rains that fell across a large portion of Argentina’s agricultural area last week slowed the arrival of trucks to export ports. The number of trucks arriving daily fell from 2,400 in the prior week week to 1,400 last week. The number of truck arrivals at southern ports was still 500 per day.   In the meantime, harvesting continued with a primary focus on soybeans. Corn harvest made slow advances last week, increasing by 2.2 percent.  Despite the slow corn harvest and the slowdown in truck arrivals at ports, the vessel lineup is increasing and now stands at 1.9 MMT at upriver ports (versus 1.6 MMT the prior week). The lineup at southern ports is mostly unhanged from the prior week at 0.7 MMT. April ended w...