I Have tryed this for a few years.with mixed results.firstly yeilds,i found about the same,the best ploughed fields may better min till,but some ploughed can be worse. After a dry summer i have cultivated to about 6inch + if level leave alone,spray in october with 1liter round up or reglone,you dont wont to kill all growth but leave roots alive but steady the regrowth so by spring the wind can dry the top up a bit.Roundup 48hr pre drilling.If much trash will need double disc openers on drill.the key is to not get to much regrowth.Dont over work as when worms and roots have done there work for you the soil will look after its self,dont work when wet.last year i got it wrong, as winter was soooo wet and mild,i didnt get it sprayed in october and there was no other chance befor 10th march when the wheat was about G/S 32.HAD to cult 2 or 3 times to get it drilled,but moisture was there, tilth was good and trash keep sun off,and yeild ended up at 27.5 ton acre ave.Some ploughed fields didnt grow till late may.Also trash will help stop a cap forming,which is a big problem here.This year as combines damaged the soil so much and i felt it was to wet to deep lift,i have ploughed again,and leveled the soil behind the plough,which is drilling well.Sometimes we have cultivated in the frost which has worked ok,but must be hard and dry.We would have been ok if we had left cults till latter,but had potatoes to harvest when it dryed up.WHY NOT PLOUGH well it offten looks like the moon, hills and holes which fill up with dry dusty frost mould,and maybe dont grow or get ate by soil pests.COST DIESEL extre passes to level off.I wont be concerned to much if we get paid so as not to over winter plough.Bring on the cash.
JOHN