How did the end of slavery affect agriculture in the South?

The end of slavery had multiple effects on agriculture in the South. First, it created a market for labor where negotiations occurred and prices were set, sometimes not fairly, but nonetheless, labor was paid for. Second, because many of the freemen migrated north or to what were previously free states, there was a shortage of labor to do the work needed. Third, partly as a a result of the second item, a stream of new inventions (or other inventions that had not been fully utilized because of the availability of slave labor) came into use to help fill the gaps created by the loss of so much hand labor. That was a matter of necessity. Without the laborers, they had to begin to mechanize. And the ramifications continued ----