High Nitrogen prices and a short supply of fertilizer are driving a big demand for livestock manure. But growers now find that manure is in short supply, too. Most manure from confined hog and poultry units is purchased in multiyear contracts. Growers pay for the manure and pay for it to be applied by big rigs that inject it into the ground where it will most benefit the crop and keep the neighbors happy. Crop producers who can still find manure should consider it liquid gold — a very good buy for 2008.