Definition of bastard-trench in English:
verb[with object] Horticulture
Dig (ground) by digging over the lower soil with the topsoil temporarily removed.
- Stretton set himself to bastard-trench a quarter of an acre, and never having done any serious digging in his life before, he went to work with such fierceness and wasted so much energy that he had no back left, or, rather, he was all back and blisters by three in the afternoon.
- The bed covered in plastic was "bastard-trenched" in the Autumn in readiness for Pumpkins & Squashes when the time comes.
- The ground should be trenched. or bastard-trenched, at least a fortnight before planting is to take place, and then arched up and trodden very firm.