it cant be good in the quantity ive seen being put on fields around here. how this is right for the environment ive no idea. can i also add why they feel the need to drive on the roads for 5+ miles at rush hour times with tractor/trailer ?
How do you know what quantities are being spread? Have you been measuring the capacity of each tankful and counting the number of tanks used?
Or are you just making shit up?
As regards the distances, blame the amount of money many farmers get for their produce, particularly milk, which is cheaper than bottled water, which has caused many farmers to sell up, the land being bought by other better off farmers or farm combines, to expand their production capability, which means farm vehicles, often owned by contractors, spend much more time on the road travelling between the various fields owned by each farm.
It is a requirement that a farm vehicle pull in where practical to allow a build-up of traffic to pass, but that depends on the roads; I followed a large tractor and trailer for eight or nine miles along a Dorset A-road, because there wasn’t a single layby or straight stretch of road to pass on or for the driver to pull into.
These, I’m afraid, are facts of life.
Get used to it or stay in the city where you won’t be inconvenienced by slow-moving farm vehicles.
Lots of other slow-moving vehicles, but at least they won’t be muddy and smelly. Or at least smelly.