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Sort of Sunny Sometimes, WA

Okay, this is either a dumb question or a good question. Either way, I don't know the answer. If you have a soluble fertilizer that is for instance, 6-0-0 or 0-0-6 can you mix it twice as strong to create a 12-0-0 or 0-0-12, and so on. Also, last year I had a hard time finding a soluble locally that had a high potassium number to use during those last weeks. Any suggestions?

6/19/2005 3:52:04 PM

Cornwall UK.(50N 5W)300ft.

Mixing a soluble fertilizer with water will make it weaker,the 6.0.0 or whatever refers to the nutrient content BEFORE it is watered down.
1 oz of 6.0.0 diluted in 1 imp.gallon of water will give you a solution of 0.035.0.0.
Double strength 2ozs would give you 0.07.0.0.

Hope this helps
Mark

6/19/2005 6:19:19 PM

Ctpumpkin@optonline.net

The only dumb question is the one that didn't get answered because it was never asked.

Yes. The finished analysis of a water soluble fertilizer is always dependent on the initial analysis as well as the amount that is added to the water. 12-0-0 would have half the filler as 6-0-0 if the nutrients were derived from the same source in both cases.

High potassium solubles like Potassium Nitrate are getting harder to find since as an oxidizer, it can be used to make bombs. Sprayable forms of both Muriate & Sufate of Potash are available.

Scotts has nothing available under the Miracle-Gro trademark. But the Peters line has a 15-11-29 see:

http://www.scottsprohort.com/_documents/MSDS/Peters_Prof_Peat_Lite/91230.pdf

and a 4-25-35 see:

http://www.scottsprohort.com/_documents/MSDS/Peters_Professional/91350.pdf

Plant Products makes a few pro-line items that I've seen in co-ops & such. Look here for their 13.5-0-46 Potassium Nitrate:

http://www.plantprod.com/EN/catalogue/03WaterSoluble.html

Most Agways can still order Potassium Nitrate though you'll have to sign a full disclosure statement for Homeland Security...LOL.

6/19/2005 6:21:39 PM

Anamosa, IA BPIowegian@aol.com

Miracle-Gro tomato food is higher in phosphorus and potash that their standard 15-30-15 formula. It worked Ok for me last year. Schultz tomato food is even higher in potash. I have 3 boxes of that that I plan to start using once the pumpkins set. The Schultz brand is a little cheaper than Miracle-Gro around here

6/20/2005 3:29:02 AM