If buffer zones are put in place, they should be mandatory on the CONVENTIONAL fields.
The situation is interesting: Once there is a legal limit to pesticide for organic crop any actions that threaten this status must be considered a polution.
While the noise of a disco are considered music and recreation still the venues managment is responsible to keep the sound contained to not impede the right of the neighbors to quiet.
So while inside the disco the sound is part of the standard environment (as is pesticided in the conventional field) it is not in the houses surrounding the disco (the organic fields) because a different legal standard applies here.
While noise is easy to verify winddrift or such is not so easily verified. Thus farmers would need to register their agricultural practices in a public register available in a timely manner so that organic farmers can verify a) if the neighbors really register their chemical applications and b) to have a reasonably source of reference to claim compensation once the polution leads to commerical losses by rendering an organically produced product legally undeclareable as organic.