Quote:
Originally Posted by Richard
If you are growing fruiting bananas and want more fruit production, you'll need a potash supplement so that in total you have 1.5 as much potash as nitrogen. It seems that Sul-Po-Mag at 0-0-22 would be a perfect match for your 20-10-10. Use the same weight of each. If they are in the ground, you'll want to apply 5 pounds of 20-10-10 plus 5 pounds of 0-0-22 over a period of 1 year. I would do it monthly because too much at once will burn the plant. For potted plants, I would try 1/4 of that dose. You'll find Sul-Po-Mag sold cheaply at farm supply stores, about $20 for a 50 pound bag. This is not a synthetic chemical but rather a mineral mined out of the ground.
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KMag is the same thing as Sul-Po-Mag, I believe. I got some for Joe and Benny and myself late last year and my farm chemical dealer offered it at $.17/pound in bul or $.22 if I had them bag it up, I believe. We opted for the bags since it was easier to handle/store. Joe suggested that it be mixed in a ratio of 5 cups of KMag, 1.5 cups ammonium sulfate, and 1 cup of triple 16 (this assumes similar densities, I believe). This would result in a ratio of 3:1:6. Much less expensive than buying specialty mixes, I believe.