I had posted back in August about a corn experiment where a grower harvested in July and replanted at the same time. The growers, actually, are uncle and nephew. Uncle completed harvest yesterday, nephew began harvest, but corn is so heavy with moisture(42+%) the combine will not unload it.
Uncle made about 75 bu. He planted 25K seed, sidedressed with 100 units of 32%, sprayed roundup once, 3 applications of fungicide, one to two irrigations. He had it contracted @ 5.40. He had to run it thru his dryer twice to get it to 15%.
I don't think this will be tried again.
I've heard of people planting corn then soybeans in the same year in South Georgia with pretty good results. Harvests in July/August and again before Christmas not sure about the Soy variety. Good luck, that has to be a struggle with the Hurricane winds in Louisiana.