Macroalgae as fertilizers

Use of algae in field other than energy - as fertilizer, food, cattlefeed...

Macroalgae as fertilizers

Postby phyco » Wed Feb 11, 2009 12:18 pm

Hi,
Is it possible to use macroalgae as fertilizers? What are the types of macroalgae which are normally used as fertilizers?
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Re: Macroalgae as fertilizers

Postby sofi » Wed Feb 11, 2009 12:26 pm

Hi,
It is possible to use macroalgae as fertilizers. I have seen people using Ascophyllum meal, Fucus meal as fertilizers. I have also read that macroalgae extracts are used as soil conditioners. I think algae is dried and then composted, the compost is used as fertilizer.
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Re: Macroalgae as fertilizers

Postby clara » Wed Feb 11, 2009 3:33 pm

Hi,
It looks like macroalgae powder is used as feed additive. Macroalgae as feed additive has got more value than fertilizers..I guess the macroalgae is just dried and powdered...
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Re: Macroalgae as fertilizers

Postby cacofonix » Sat Feb 14, 2009 9:52 pm

I guess it is fairly easy to see that most biomass can be a fertilizer, as they contain some nutrients that plants need...the question is, how good and cost effective is macroalgae as fertilizer...
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Re: Macroalgae as fertilizers

Postby DR Johansen » Sat Feb 14, 2009 10:37 pm

[quote="cacofonix"]...the question is, how good and cost effective is macroalgae as fertilizer...[/quote]
and will it put too much salt in my soil?
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