> - you could try calcium lignosulfonate
>
> > Lloyd Charles
> > >
> Hi Lloyd what is calcium lignosulfonate? please.
>
> I need to boost my sulphate levels to suck up surplus cations especially
Mg
> This sound interesting.
> Thankyou Tony
> NZ
>
Hi Tony
I have not used it so am shooting in the dark a bit - its a chelated
liquid calcium (not liquid lime) and is an allowable organic input - much
more expensive and lower calcium than clacium nitrate - I have suggested it
would be worth trying by certified organic producers as a weed suppressant
with molasses which is how we are using calcium nitrate (and getting good
results). This is the sort of situation where the constraints of
certification are often counter productive - but I realise there need to be
rules and rules must be easily interpreted and simple to enforce or they
dont work!
The small amount of calcium nitrate we use (2 to 4 kg / ha / year ) enhances
the growth and quality of our crops and improves soil conditions for the
microbes, has almost eliminated broadleaf weeds in the early crop growth
stage and has depressed the growth of ryegrass to the stage that we can keep
it down with follow up foliar nutrition in most cases. If calcium
lignosulfonate would get a similar result for a certified grower it would
be a major gain for organic grain farmers!!
Cheers
Lloyd Charles
