There was once a very very stupid farmer in Texas. The farmer decided he wanted to raise chickens, so he bought a standard gross of chicks.
He planted the chicks in the field, watered them regularly, but nothing happened. He was a persistent type, though, so he bought another gross of chicks and planted them and cared for them – still nothing.
Finally he decided he needed professional help, so he wrote a letter to the Texas A & M extension service, explaining exactly what he’d done in detail and asking for their advice. About two weeks later he received a letter from A & M, and read it:
“Mr. X, we are unable to diagnose your problem without further information.
Please send a soil sample.”