How To: Fertilize plants

How does one fertilize plants? Well, a fertilizer is a material that supplies the essential elements for plant growth. Most fertilizers are concerned with nitrogen, phosphorous and potassium. It isn't always easy to know which type of fertilizer to use. In this video tutorial, you'll find a guide to selecting the right fertilizer type for your application. Grow strong, healthy plants for a green garden with this how-to.