Reseeding Question

[scrubbuster]

As I have done for a few years now, I sprayed off a grass field and direct drilled in a forage brassica mix. What I normally do once it's grazed off is, leave it a few weeks and spray glyphosate. Once that's had enough time to work I disc it, sow straight away and roll.
This year I am planning doing a stale seedbed. I am not sure should I spray, disc it and then leave it for 2 or 3 weeks and sow with the Opico OR work it without spraying it, leave it for a few weeks and then spray?
It's quite clean but there are some weeds, like daisy or similar and some grasses. I could get some photos tomorrow. Many thanks

 

[Derrick Hughes]

You need to spray before doing any cutivations , then get your seed bed ready and leave it 3 weeks if you want , then decide ,if there is a fair bit of weed give it a light spray again
To be honest unless it's very weedy most brasicas outgrow weeds. Apart from Swedes that is

 

[scrubbuster]

Ah sorry I wasn't clear, it's grass I am sowing now after the brassica. If I spray off and cultivate will leaving it 2 weeks be any benefit do you think? I have always sown straight away but thought maybe waiting 3 weeks would let the weeds come up and reduce the weed burden in the sward?

 

[Derrick Hughes]

Ah sorry I wasn't clear, it's grass I am sowing now after the brassica. If I spray off and cultivate will leaving it 2 weeks be any benefit do you think? I have always sown straight away but thought maybe waiting 3 weeks would let the weeds come up and reduce the weed burden in the sward?

It will yes ,but not by a considerable about, as the seeder will just destirb more seed,
If your discing a lot of the fresh seed from last year weed seed will buried bellow germination depth anyway
Each to his own but the biggest threat to a spring reseed is the weather, personaly I would get it in as leaving the ground unsown you will be losing moisture from the surface layers
If I have a field that I know is weedy I leave the clover out , deal with the weeds then overseed clover the following year

 

[Limcrazy]

Cultivate first and roll. Leave it 3 wks and spray off then blow or broadcast seed on and roll in. Did this last year after kale and worked well with no other spraying. Rain after sowing was a big help.

 

[Sierra Lama]

Have always had a weed burden when reseeding back to grass following brassicas. Last year I cultivated it, left it stale fot the weeds to grow, sprayed then planted later on when there was a bit more moisture about. Seems to have worked well but the ground is out of production for a while. Have also had to spray out weeds in a new ley then follow on behind and broadcast & roll clover in. That's worked too but gotta hit the weather right.

 

[Derrick Hughes]

Brassica Crops are bad for spreading weeds ,not many sprays you can use and weeds get chance to mature before the crops eaten ,
I reseed here a lot with Italian Ryegrass now even Westerwolds, graze or spray the weeds out first year then overseed a permanent clover ley in the 2cd year

 

[scrubbuster]

I have had a good look tonight and the field is quite level so I was wondering if spraying off and DD would be an option?

 

[Derrick Hughes]

I have had a good look tonight and the field is quite level so I was wondering if spraying off and DD would be an option?

If it's stubble from root crops then can't see a problem ,but it's not easy to coment without eyes on ,send us some pictures

 

[scrubbuster]

Will do

 

[d williams]

I have had a good look tonight and the field is quite level so I was wondering if spraying off and DD would be an option?

How old is the lay I’d be more concerned about what I can’t see then weeds on top

 

[hally]

I have had a good look tonight and the field is quite level so I was wondering if spraying off and DD would be an option?

All we do here….keep it simple

 

[Derrick Hughes]

I have had a good look tonight and the field is quite level so I was wondering if spraying off and DD would be an option?

Are you sowing straight grass or a mix

 

[som farmer]

depends on what the brassica stubble is like, weedy or fairly clean ?

we are increasingly using d/d, and pushing the limits, to what we think is ok, and going beyond. So far it works.

but if the stubble is dirty, depending on how dirty, either spray before drilling, or leave out clover/herbs, and spray afterwards.

l do think dd results in fewer weed seeds being brought up, as they would be by conventional reseed.

 

[Derrick Hughes]

depends on what the brassica stubble is like, weedy or fairly clean ?

we are increasingly using d/d, and pushing the limits, to what we think is ok, and going beyond. So far it works.

but if the stubble is dirty, depending on how dirty, either spray before drilling, or leave out clover/herbs, and spray afterwards.

l do think dd results in fewer weed seeds being brought up, as they would be by conventional reseed.

The only exception to that is after brassica crops they can be a b**** for spreading weeds and leaving then on the surface

 

[som farmer]

The only exception to that is after brassica crops they can be a b**** for spreading weeds and leaving then on the surface

our biggest weed problem with brassicas is fat hen, we are experts in growing it ! If we mess up the spray, we can get huge patches of 6ft fat hen. OM reckoned it came in with the pig feed, its local name is bacon weed.

 

[scrubbuster]

 

[scrubbuster]

Last few years I have been discing 3 times and getting it sown with an opico harrow. Makes a lovely tilth but I have had weed issues but generally the take has always been very good. Part of me thinks if its not broke don't fix it but would there be less weed burden?

 

[Derrick Hughes]

First thoughts looking at the picture it looks a bit compacted on the surface , I would be giving I a pass with the disc

 

[Macsky]

All we do here….keep it simple

Grass into old grass?