How Much Fertilizer Does My Lawn Need?
Recently fertilized lawn
image by Neosnaps: Flickr.com
Divide the percent of nitrogen contained in the fertilizer by 100 and put the number aside. Subtract the square footage of your lawn from 1,000. Multiply the product by the first number to determine how many pounds of fertilizer you need.
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About this Author
Megan Smith has been a freelance writer and editor since 2006. She writes about health, fitness, travel, beauty and grooming topics for various print and Internet publications. Smith earned a Bachelor of Fine Arts in writing from New York University.