How can you make youre own plantfood.?

Answers:
Purchase nitrogen phosphorus and phosphate. Also bone meal, sulfher, iron, but just in trace amounts.
Its MUCH simpler and easier to buy it....
If you are trying to save money get 10 10 10 and dissolve in water.

Other answers:

Gardening--I live in Hannibal Mo--zipcode 63401--what zone am I in?

how to grow purple rose mallow? I know nothing about them.?

How do you get scum off of top of pond?

Is there a robotic lawn mower that will cut your lawn by itself?

Green disease on tree and shrubs?

Need landscaping ideas. 6' x 15' area on west side of house. Easy care, maybe evergreens and grasses.?

Where do you send a sample of your grass/soil to get it analyzed for PH, etc?

My cactus has too many buds on it. Can I cut those off and replant them for more plants?

I really want to plant some nice flowers that will final adjectives year round!?