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Post by tompepper7 on Dec 23, 2022 0:05:30 GMT -5
I was reading some links online about hydroponic Brussels Sprouts and saw a recommendation to use a 5-5-5 fertilizer.
It so happens I had purchased some 10-10-10 fertilizer to use in my (currently 2 tier) Greenstalk vertical garden (garlic & carrots).
My bad math gives me this: Aerogarden plant food - 4-3-6 - recommended @ 12ml after 4 weeks (for Bounty). So 6ml of the 10-10-10 would give me the Aerogarden recommended volume of nutrients for 5-5-5. ...ignoring (as in not reading or calculating) any difference stated on the label of ml per gallon of the 10-10-10.
I have been using a pipette to measure my plant food.
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Post by scarfguy on Dec 23, 2022 9:38:34 GMT -5
This continues to perplex me. I have never been able to find a definitive answer as to what 5-5-5 actually means? Is it 5% of the concentrated solution?
Is 10 ml of 10-10-10 equivalent to 20 ml of 5-5-5  OR are the numbers such that they only represent relative percentages and are defined as whole numbers? In other words, is 3-4-6 exactly the same as 1.5-2-3 or 6-8-12 |
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Post by katyag247 on Dec 23, 2022 11:00:07 GMT -5
This continues to perplex me. I have never been able to find a definitive answer as to what 5-5-5 actually means? Is it 5% of the concentrated solution?
The percentage relates to the weight of each element in the bag or bottle of liquid fertilizer. For example, a 50 pound bag of 10-10-10 fertilizer will contain 5 pounds of nitrogen, 5 pounds of phosphorus, and 5 pounds of potassium. The rest of the weight in the bag comes from filler or other substances. It's my understanding that this is a national standard. |
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Post by lynnee on Dec 23, 2022 18:12:13 GMT -5
The three numbers always refer to the proportional amounts of nitrogen, phosphorus, and potassium, as katyag247 said. Nitrogen promotes leaf growth, so I pay the most attention to the first figure. When I'm thinking about supplements, I usually don't want more leaves! |
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