Why did the planters in the south become increasingly dependent upon slave labor?

Planters in the South became increasingly dependent on slave labor due to the high profitability of cash crops like cotton and tobacco, which required intensive labor for cultivation and harvesting. The invention of the cotton gin in the late 18th century further accelerated this demand, making cotton cultivation more efficient and profitable. Additionally, the expansion of plantation agriculture and the need for a stable, controlled workforce led to a reliance on the institution of slavery, as it provided a consistent and economically advantageous labor source for the growing agricultural economy.