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Friday, April 15, 2011

K Is for the K in N-P-K Blended Fertilizer

This time of year, home improvement stores, garden centers and even mini-marts have bags of fertilizer on sale for the enthusiastic gardeners out there. Fertilizers come in many variations and it is important to buy the right kind for the plant you are fertilizing. The blend you use on your grass is not the same kind you use for your fruit and ornamental trees.




Bags of fertilizers are labeled with a series of numbers, usually 3, in a pattern like 10-10-10 or 12-12-12. Those numbers represent the percentages of specific components of the fertilizer. In order they stand for nitrogen (N), phosphorous (P) and potassium (K). These three nutrients are the keys to most plant growth. They each have a job to do. Let’s look at potassium.



Potassium, also known as potash, is the K in the NPK formula. The k comes from its Latin name kalium. Potassium is important to flower and fruit development. It assists in the building of starches and sugars and contributes to plant growth and disease resistance. It is naturally found in wood ash which is where the potash name comes from.



You can tell if there is a shortage of potassium because leaves will scorch more easily, fruit crops will be low and plants will be more prone to disease. A soil test can confirm the shortage.



Potassium can be applied to trees as part of a blended fertilizer or separately in liquid form. It typically lasts two to three years in the soil unless you have a crop of heavy fruit production. If you need to add blended fertilizer, look for one with a higher K designation.

8 comments:

Word Nerd said...

I love trees. Genuinely.

My “M” post is right here: http://www.word-nerd-speaks.com/2011/04/medical-marijuana.html

Poddys said...

I just learned something new here. Thanks for the education.

Sylvia Ney said...

What an interesting purpose for a blog. I'm so glad I found you! I'm stopping by from the A to Z challenge and I look forward to visiting again.

Angela Felsted said...

You mean you can't just ground up bananas and mash them in the soil? (kidding) I got some good information from this post.

M Pax said...

Well, I learned something new. :) Nice bumping into you.

nutschell said...

great information! thanks for sharing.
Great meeting you through the A-Z :)

nutschell
www.thewritingnut.com

Elizabeth Mueller said...

Theresa, here's to making it this far, congratulations! I have an award for you!!

Sandy said...

I feel like I'm in the wrong place. K perhaps was when the a-z challenge was going on?

R u doing Z-a?
Sandy