With the high price of fertilizers and the late harvest last fall, many fields did not receive the typical phosphorus (P) or potassium (K) applications. Now the question being asked is: Should I apply these nutrients this spring? The answer depends on several factors. The guiding principle in fertilizer decisions is that you should definitely apply nutrients when the chance for yield increase is large and the...

Urea (46% N) and urea-ammonium nitrate (28% UAN) have typically been about 10¢/lb. of nitrogen (N) more expensive than anhydrous ammonia. Recently, urea prices have fallen substantially to be competitive with ammonia and less expensive than UAN. Lower prices have resulted in an interest among farmers in using urea instead of ammonia or UAN. Is this a good change to make, or not? Urea’s main advantage...