jul1799
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Posts: 45
Joined: Wed May 25, 2016 9:34 pm
Location: Toronto

Can I use old fertilizer?

Hi there,

I found organic fish meal solutions (bucket and liquid) and some other fertilizer which manage to hide in my garage for number of years (may be even 10).
They lived there though winters and summers. I believe that fish ones are not even opened but other stuff is and it is granules. Can I still use them for my veggies? Would it be safer to use them in compost tea, or just throw it out?

is there something I should look for?

thanks for replies:)

imafan26
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Joined: Tue Jan 01, 2013 8:32 am
Location: Hawaii, zone 12a 587 ft elev.

The fertilizer may have lost some of the more volatile nutrients like nitrogen but it should be o.k. to use. I think fertilizers are considered hazardous waste materials so you should not just dump them. It would be better to use them and spread them out a bit.

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applestar
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Joined: Thu May 01, 2008 7:21 pm
Location: Zone 6, NJ (3/M)4/E ~ 10/M(11/B)

I would put the fish stuff in the compost pile in small batches and let the compost denizens remediate whatever you have there at this point after 10 years. (I wonder if it will be fermented like fish sauce?)

What are the "other stuff" -- "granules" doesn't exactly describe what they are -- be more specific.

jul1799
Full Member
Posts: 45
Joined: Wed May 25, 2016 9:34 pm
Location: Toronto

Thank you. I do not have compost pile,so that is not an option



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