Baby chickens

A city slicker moves to the country and decides he’s going to take up farming.
He heads to the local co-op and tells the man, “Give me a hundred baby chickens.”
The co-op man complies. A week later the man returns and says, “Give me two hundred baby chickens.” The co-op man complies.
Again, a week later the man returns. This time he says, “Give me five-hundred baby chickens.”
“Wow! The co-op man replies “You must really be doing well!”
“Naw,” said the man with a sigh. “I’m either planting them too deep or too far apart!”