On Wed, 05 Dec 2007 18:08:52 +0000, Oz wrote:
> ario <joe@[EMAIL PROTECTED]
> writes
>>
>>I've read that in The Philippines, chicken manure is mixed with pure
>>rice hull, carbonised rice hull, some 'beneficial' bacteriae
>>(Lactobacillus something) to treat soil acidity and attract nitrogen,
>
> ?? Attract nitrogen?
Yes, there 'seem' (because I don't have experience with that) to be
nitrogen fixating bacteriae, see for instance
http://hcs.osu.edu/hcs300/bact.htm
http://en.wikipedia.org/wiki/Nitrogen_fixation
Ohw, sorry, if your objection was with the word 'attract' then you're
right of course. They don't attract, merely fixate it.
> Poultry manure from layers is often quite alkaline.
Thanks, I didn't know that, so this could especially be helpful for de-
acidification of the soil in rice fields which have long been supplied
with chemical fertilisers and herbicides and pesticides, which seems to
turn the soil quite acidic, inhibiting a proper growth.
>>degrading
>>bacteriae or enzymes, and micro-nutrients, to produce a compost which is
>>high in nitrogen, has a high silicon content in a form ready for take-in
>>by the plant.
>
> 1) Nitrogen is never fixed in manure.
Well, I didn't say it is fixed in the manure. Rather, the manure is mixed
with rice hull in both pure and carbonised form. So maybe it can be fixed
in the organic matter from the rice hull?
>2) Silica (if available) is toxic to plants.
I've been told that the rice plants needs a high amount of silicon for
its rice hull. Maybe it's not in the form of silica then?
>>I think one could call this a 'manufactured organic fertiliser'?
>
> If you think so.
>
> Most would call it the local midden with all the waste organics dumped
> thereon.
Here it's sold for quite a lot of money. It's also said that rice grows
very well on it. The price, for sufficient application, is almost the
same as for chemical fertiliser, but that one keeps only increasing in
price.
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