| steve, aquaculture infiltrates the brain once again.. just when i thought it safe to think of bikinis and sunshine..
i remember doing various clay tests and checking soil ph but dont remember that test.
what does that test do?.. doesnt it tell you what 100 grams of soil and 100mls of your water, shaken up and discarding the water equal out to in a pH measure? wouldnt that be all it does.. i mean wouldnt that just prove that theres alkaliine soils or acidic soils and then what happens when combined with equal water... less it drained off.
has someone over there actually worked that test out to prove what pH the water will be once it is filled with that water..even if as a basic guide?
hangon..even more specifically, what i really mean to ask is how does that test come to give a standard on actual water buffering ability?
i dont mean to sound sceptical because i hope i may learn something from you, i hope we are here to learn from one another and share knowledge and ideas. really.
i can understand the 1000lb per acre or whatever rate but does test give you somnething to go by when determining application rates?
say i filled a pond and the water and it was showing a lack of lime.. let us not go into the whole calcium carbonate hardness total hardness trip unless someone asks us to please explain...ive memorised it but its a brain tease when ive had beer.
say it gave me only 10mg per litre carbonate hardness, wouldnt i add so much lime per litre to make it up to a desired concentration of say 40-80mg/L.
thats what i was always taught, 20mg is pretty low to buffer from pH swings and over 80mg was more cost than needed and if soils and water combined to make it was under 200mg everyhting was cool.
im thinking that maybe the 1000lbs per acre is a standard that is used when dosing ponds when calcium carbonate is determined low.
what i do is throw in 4 bags of aglime, first i was shown to use 4 bags of hydrated, then i read that hydrated was a bit toxic and can cause problems to pond life so i changed thought. then i heard off a guy that dolomite should be used instead.
now i figure that its all up to the individual farm..ill throw in one hydrated to kill wet sumps and 3 bags aglime to make up the rest. thats what i do on my ponds to suit.
HOWEVER, i cannot say which type has resulted ina better crop, or which combination would result in a better crop or supposed better growing environment cause i dont keep meticulous records and analise them.
like i could try but oh theres so many other variables to think of when doing that..
im sure some governement body has done better but from what ive ever researched from different papers, its just one word against the other.
can you tell me what your thoughts might be on this or is it all rule of thumb stuff and im on the right enough track.
Maurice?, your a farmer, ive checked out your ponds just now, lined on sides and clay bottom, what reasoning do you go by for getting things suitable? |