Anson, we have a 30" annual rainfall.
Our land is flat also. Prior to 30 years ago, all crops were planted on beds w/blackland type planters w/sweep to plow off top of bed, then opening shovel and closing shovels.
Today, very few beds. Apparently, beds are too much work and you can't use wide equipment. I farm flat, but I still think bedded is better. It's just a little harder keeping the beds correct.
My son now farms with me and we farm flat using GPS, (no row markers). and kinze planter. Sorghum crop was mediocre, Cotton is maybe 2-1/2 bales per acre.
We started harvesting cotton July 30 this year, the earliest we've ever started. We try to have it out by the middle of August when we usually get some rain almost like clockwork. This year it came early.
This past Sunday we got rained out (4 in) on one of our best fields. (not good) Weather people say we are about 3 in ahead for the year, however, we didn't get rain back when the crop needed it. With beds most everyone plowed out the stalks with middle busters. Then following a rain and volunteer plants came up we would rebed (split beds) maybe late September.
There are some old timers that had an exact date that was the deadline for rebedding. If not done by that date, you would save the bed and plant there the next year, which would be 1/2 row off of where the plants were last year. You would run middles as needed until planting late feb-early march.
Sometimes Dad would put a 4 row cultivator on the front of the M and a 4 row planter on the back and clean the field of young weeds and plant at the same time.
Right now we are waiting for it to dry up and try to get back into the field.