Low disturbance subsoiling in a DD system

Bumble Bee

Member
Arable Farmer
You don't have to spend a fortune on one of these, as a bit of sharpened rebar with a T on top will suffice. What you're looking for are tight layers that you can more closely inspect with a spade. Look for plant roots travelling sideways instead of in all directions, especially downwards.


I don't wish to patronise, but there's a great guide to assessing soil structure here: https://ahdb.org.uk/knowledge-library/thinksoils

Beans don't like compaction at all. Like you, I have a Claydon and am looking to go to zero till so I'll be following this thread.
The strange thing is that we have never even had a problem with compaction showing in the previous years tramlines.
 
I moledrain in the spring pre emergence of the beans

I also find that in dry springs the top 2 inches can go from too wet to too dry very quickly when it is too dry drill penetration on wheelings has to be maintained in future I am now planning to chop straw
This may delay drying so patience is needed
Drilling a few days too early gives worse result than drilling under the optimum conditions later

Lighter textured soils can be more susceptible to compaction and go hard
These soil types do not crack like heavy land and can be more susceptible when conditions are not dry enough this may not be easy recognised till the ground is hard in a dry time

Last year we had beans that did not perform and especially showed this in wheeled areas these have not shown up in the following wheat crop due to the deep cracking last year

On lighter land the low disturbance subsoiler could solve the problem
Worms on this land do not do well in dry years
 
What depth do you stop worrying about compaction?
Currently using controlled traffic so combine leave 2 24 inch marks every 9 m 1 is on the outside edge of the tramlines
Trailers stay on tramlines drill tractor is on the same lines but slightly inside
This levels out any tramline rutting which last summer had the deepest widest cracks

Land that does not crack needs more care with maintaining the worms and organic matter
 
Currently using controlled traffic so combine leave 2 24 inch marks every 9 m 1 is on the outside edge of the tramlines
Trailers stay on tramlines drill tractor is on the same lines but slightly inside
This levels out any tramline rutting which last summer had the deepest widest cracks

Land that does not crack needs more care with maintaining the worms and organic matter


Sorry I meant how deep would compaction not occur, how deep does a hole have to be dug to see if compaction is there
 

Badshot

Member
Location
Kent
I completely agree, beans hate freshly compacted soil

They revel in.longish term undisturbed soil though.
My winters went higher than the Bateman boom could go.
Then got beaten about by all the wind.
Done very, very well though.
 

clbarclay

Member
Location
Worcestershire
On the whole beans have been on of the more reliable crops to no-ish till here. Father always talked about compaction and beans, but that was about minimizing the tractor wheelings on the subsequent passes after ploughing them in to try to level it out a bit.

The main thing with since we started direct drilling them has been making use they are in and covered. For the last few years I have been no-ish tilling them with a pig tail tine drill and then then harrowing across the slots to make sure they are covered. This year though I now have a GD to use, so there should be a lot less surface disturbance. I might use both drills though, for a comparison.
 

jack6480

Member
Location
Staffs
I completely agree, beans hate freshly compacted soil

They revel in.longish term undisturbed soil though.
My winters went higher than the Bateman boom could go.
Then got beaten about by all the wind.
Done very, very well though.
How did your beans do after grass
 

jonnieboy

Member
Arable Farmer
Location
North Yorkshire
I have found that due to the awful back end last year my souls have tightened in places when you dig it was breaking horizontally
Mostly in poor wheat crops
I think I will continue to drill my spring beans with the dts they seem to thrive on it
 

jack6480

Member
Location
Staffs
They were ok.
Leather jackets and wireworm thinned them somewhat.
But they grew like bloody hell.
I’ve got some to put in after grass, was going to drill and spray off after. What do you think. 200kg/ha?
 

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Please answer this then , potato field , nice square field nice loamy soils , have lifted dry , half wet , some will remember me ploughing a foot of slop , and drilled with spring barley ,
Now after harvest we put 6 ton acre chicken poo on and Subsoiler Whole field , put mustard and oil raffish in with knight 700 press with legs well in , the what was wet lifted and badly rutted wet side I Subsoiler twice
The twice worked side is 10 times the crop of other side , 🤷‍♂️
why who knows will take a pic later it’s all had same chemistry and muck
 

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