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Old 04-04-2017, 03:24 PM   #10 (permalink)
edwmax
 
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Default Re: How much fertilizer can a banana tree tolerate?

I haven't seen any ill effects to my plants at 1 cup of potassium sulphate every other month. ... I just check, 1 cup is 10.1 oz while the recommendations I'm using is 8.5 oz. So about 3/4 cup would be OK too. At this rate 1 lb of potassium would be delivered to the plant in 4 applications in addition to that in the fertilizer.

Also, I'm using large granular ag grade potassium sulphate. It is slow to dissolve in the soil. Fine ground potassium sulphate (horticultural grade??) is available too. It is faster to dissolve in water and therefor faster acting in the soil. Probably monthly applications of the 'fast acting' at 1/3rd -1/2 dose/cup would be better. ...

So one needs to be aware of how 'fast-acting' the fertilizer being used is and long it would last in the soil for the plant. Then adjust the applications as needed.
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Last edited by edwmax : 04-04-2017 at 03:37 PM.
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