So is scratching the top or just drilling straight into uncultivated soil,when it's worked here as long as the plough has i will think you are on to something,I love the way any thing you don't do is a waste of diesel were as I think pissing about with cover crops are a waste of money but that's my view.
By definition anything I don't do whilst still growing a good profitable and clean crop would indeed be a waste of money / diesel
Pretty hard to argue logically with that I reckon !