anionic polymers as buffers

[j.t.delaney]

Hi there,
In fighting to keep pH values in a nice stable range, has anybody here used polymers with acid functionalities to maintain a stable pH? I started looking around, and I see some commercialized cross-linked polystyrene sulfonate out there, but polyacrylate and polymethacrylate-based materials ought to do an even better job holding the pH in the slightly acidic range, while still being too big and bulky to make it into the plant tissue. Anybody seen anything like this?

 

[Bootsieb]

Hi there,
In fighting to keep pH values in a nice stable range, has anybody here used polymers with acid functionalities to maintain a stable pH? I started looking around, and I see some commercialized crosslinked polystyrene sulfonate out there, but polyacrylate ought to do an even better job holding the pH in the slightly acidic range, while still being to big and bulky to make it into the plant tissue. Anybody seen anything like this?

What would neutralize the acidity of a "over-nitrifried" soil?

 

[j.t.delaney]

What would neutralize the acidity of a "over-nitrifried" soil?

Overnitrified soil is a different thing altogether. If all you want is to raise the pH, then some slaked lime would do it. If you're trying to go for large-scale denitrification of something a little larger (e.g. poorly managed farmland), then you need something a little more sophisticated (see: http://www.jswconline.org/content/57/6/505.abstract.)

 

[Jack Kerouac]

This sounds a lot like Advanced Nutrients "pH perfect" system, but you didn't hear it from me