[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [APD] Ammonia and Nitrates



I think that experiment proves beyond a doubt that if we want to keep 
water in a jar on a sunny window sill, and don't want algae to grow in 
it, we shouldn't add a large amount of nitrates to the water.  I will 
certainly try to remember that.

Vaughn H.

On Friday, December 2, 2005, at 07:55 AM, Brian Waldbaum wrote:

> I read your post on the BarrReport in which you described your
> experiment.
> I'm still baffled as to why you concluded that excessive nitrates cause
> algae when the jar
> dosed with NO3 also had 15x the amount of PO4 relative to the non-dosed
> jar.
>
> Brian
>
>
> On Dec 2, 2005, at 8:40 AM, Bill D wrote:
>
>> Last summer I put two one gallon jars in a sunny location.  One
>> contained
>> well water which was relatively low on nutrients; the other contained
>> the
>> same
>> water plus 60 ppm of NO3.
>>
>> After a month the low nutrient jar had almost no algae present.  The
>> glass
>> of the
>> higher nutrient jar was covered with algae, so much so that some of it
>> had
>> to be
>> scraped off to see the water.
> (snip)
>
>> the purpose of the experiment was
>> to test
>> the effect of high nitrate levels on the growth of algae, and it did.
>>
> _______________________________________________
> Aquatic-Plants mailing list
> Aquatic-Plants at actwin_com
> http://www.actwin.com/mailman/listinfo/aquatic-plants
>

_______________________________________________
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com
http://www.actwin.com/mailman/listinfo/aquatic-plants