I have a Plantman 2 264 1989. Truckmasters at Skegness told me to fill up the spout on the side with ATF until its full, there is no sight glass or dipstick. I only knew it was low because it was sluggish pulling away.
Asparagus is very deep rooted.
Yes, in fact is a job for this week to get a RoundUp on. Fern has been already removed.
Hand weeding isn't really practical on a large acreage
All the cultivations and bed making/ridging are mechanised, the harvesting is done by hand.
Hand weeding in the first year or two if they've got out of hand, ground preparation pre-planting is key!