Ask a Question
Notify Me On Question Update
Email this Question
What do the numbers on the fertilizer package mean?
Rate This FAQ
N-P-K. The first number (N) is nitrogen is an important element for leaf growth, color and development. Phosphorus (P) is used by the plant for root development and seed production. Potassium (K) is used by the plant for disease resistance, hardiness and sugars. Sometimes a fourth number may follow the third, indicating presence of another element like sulphur, iron or zinc. Federal and State laws require all fertilizer labels to represent the actual percentage of nitrogen, phosphorous, and potassium by weight. Thus, ammonium sulfate (21-0-0) contains 21% nitrogen by weight and provides neither P nor K.
Submit Your Suggestion
Other Questions In This Topic
- We will need to establish some native plants. How much do we have to water Greasewood, Four-wing Saltbush, Rabbitbrush, Green Ephedra, and Spiny Hopsage in #10 containers? We also have two trees, a 5'Utah Juniper and 3' tall Gambel Oaks to water. I understand it best to lightly water for a year and then wean them off in the wet season. Is this correct?
- What Are Those Large Round Fungus Balls That Appeared In My Lawn Last Summer?
- How do I know when to pick my fruit?
- Why are my older pine and spruce trees dropping their needles?
- Do you have some advice on how to control mallow weeds? This has been an ongoing problem that even the powerful herbicides can only contain for just a few weeks. They always come back and completely overrun my garden. Any advice?
- I live in Riverton, and have areas in my lawn that are brown and sparse. I planted the lawn from seed, a Kentucky bluegrass blend I bought from a nursery, at least 10 years ago. It grows well in cooler weather, but by summer it looks dead in patches and is stiff, not soft lawn for the kids to play on. I would like to put down some patch seed, but don't know what kind to use and how is the best way to plant. Do I have to take out the old lawn or can I just sprinkle it on and cover with a little bit of soil. Also, is there any way to control the wide leaf weed that grows throughout my lawn as well as the entire neighborhood?
- I have rings in my lawn that are about two feet wide. I suspect they are fairy ring, but the description for fairy ring doesn't quite fit. The inside of the circle is not lush and green, it looks the same as the rest of the lawn. There is just a semi-dead cirle surrounding good lawn. Do you have any help for me.
- What is West Nile Virus and how can I keep myself safe from it?