(2) Amount of product needed to apply

**43.5 pounds**of nitrogen per acre. To determine the amount of product needed to deliver 1 pound of nitrogen per thousand square feet, divide 100 by the first number in the fertilizer ratio. For example, for 16-4-8 fertilizer, divide 100 by 16.Also know, how is fertilizer ratio calculated?

How to

**calculate**a**fertilizer ratio**. If your soil test report recommends applying 1.5 lb of nitrogen, 0.5 lb of phosphate, and 0.5 lb of potash per 1000 sq ft, you should apply a**fertilizer**with a**ratio**of 3-1-1 since you need three times as much nitrogen as phosphate and three times as much nitrogen as potash.How many square feet does a 50 pound bag of fertilizer cover?

Now that you know 3.8 lb of 26-5-

**10**fertilizer will cover**1000 sq**ft, determine how many times 3.8 lb goes into 50 lb. 50 lb ÷ 3.8 lb = 13.2. Now multiply 13.2 by**1000 sq**ft: 13.2 ×**1000 sq**ft =**13,200 sq**ft. Thus, a 50-lb bag of**26-5**-**10**covers**13,200 sq**ft at a rate of 1.0 lb nitrogen per**1000 sq**ft.How much urea fertilizer do I use per acre?

Application. Specialists at the University of Minnesota recommend applying urea at a rate of

**10 pounds**per acre at planting time when conditions are moist and at a rate of**20 pounds**per acre when conditions are dry.