Viewing post #11317 by tapla

You are viewing a single post made by tapla in the thread called Fertilizing Containerized Plants.
Feb 5, 2010 3:13 PM CST
Name: Al
5b-6a MI
If you combined it with equal portions of 30-10-10, you would end up with 25-15-15, still a little high in P and low in K, but you could supplement the K with a little potash in your container soils or by buying some ProTeKt 0-0-3, which is nice to have around anyway. I use it to (sort of) change my 3:1:2 fertilizers into 2:1:2s, when a little less N is required.

I don't want to give the impression that 1:1:1 ratios are BAD. It's just that in relation to N (which is what we base all our fertilizer needs on, as hobby growers), it supplies 3 times as much P as needed and only half the K, so to prevent deficiencies K, you MUST supply more N than needed.


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