Companion Cropping
- Thread starter Shropshire Farmer
- Start date
- Location
- Ashford, Kent
Sorry chemistry is not my strong point. Does it have to be vetch and Berseem? Why not use forage peas and still use clomazone?
Bryan@Albaugh
Member
- Location
- Newmarket
Hi, there is no data on the effects of Clomazone on Vetch or Berseem Clover, for what its worth i can tell you that Clomazone is ONLY a pre-em and does have a severe bleaching effect post-em. I would suggest Pendimethalin would be OK at arround 2.5lt (please check first) your seed supplier should have a list of products that can be used.
It doesn't have to but I prefer lower dose rates as the extra hopper the CC is going through isn't very big so don't want to have to stop every 5 minutes to refill it. This is just an experiment on a 16 ha field. If it works out I'll do something better with the seed supply in future.
I have also been thinking about OSR/clover/vetch and pondering about how to manage the herbicides, and havent found a clear answer yet. Closest I have come to so far is the below.
"Herbicides commonly used in OSR are well tolerated by companion crops with the exception of clomazone, which should be avoided. Astrokerb (aminopyralid+ propyzamide) will take out berseem clover but at the time of use, late Nov/Dec, the clover is likely to die anyway".
http://www.cpm-magazine.co.uk/2016/06/20/companion-cropping-berseem-clover-improves-soils/
"Herbicides commonly used in OSR are well tolerated by companion crops with the exception of clomazone, which should be avoided. Astrokerb (aminopyralid+ propyzamide) will take out berseem clover but at the time of use, late Nov/Dec, the clover is likely to die anyway".
http://www.cpm-magazine.co.uk/2016/06/20/companion-cropping-berseem-clover-improves-soils/
We're drilling this mix at 4kg osr (off the heap), 2kg each of buckwheat and vetch to see what happens (per hectare that is).
TelesnaAg
Member
- Location
- Portland, Victoria - Australia
Is there any science to prove that plants can access other plants N filled nodules in the first year? while they are living.
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Louis Mc
Member
- Location
- Meath, Ireland
We've used 10kg buckwheat with rape last 2 years and it's looks about right but it's not exactly a science either to be fair
- Location
- Ashford, Kent
I would use 7kg of buckwheat and 15 vetch or there about. In terms of N transfer it is still a little bit of a mystery. Don't get hung up on N when talking about CC there are many other benefits. One theory is hydrogen fertilisation. Most of the time you don't get a huge direct N benefit unless you kill or damage the legume. It is all very complex and not well understood.
- Location
- Oxfordshire
Clomazone kills Berseem Clover. Found out the hard way last year!
dontknowanything
Member
- Location
- Cambridge
I'd say that's such a low rate is hardly worth bothering. We are doing 10kg buckwheat, 18kg vetch, 8kg linseed and 3kg fenugreek.
Might be a bit OTT though!
dontknowanything
Member
- Location
- Cambridge
- Location
- Cambridgeshire UK
Is there room for any rape in there! Funnily i was wondering today what linseed as a companion would do for rape. Wish id done a trial beside the rape bean mix.
Drilled rape into established buckwheat berseem mix with the 750 today, Buckwheat got knocked about a bit but the rain we just had may reveive it.
- Location
- Cambridgeshire UK
Hadn't thought that be through Brisel. Just that linseed "takes" really well and gets a move on if planded early, it could be a good anti CSFB/pigeon companion.
Quite a lot of osr herbicides are approved on winter linseed too like Crawler and metazachlor, but to be fair unless you have linseed in the rotation as a cash crop it shouldn't cause a major problem. Fluroxpyr (Starane) or CMPP knock it stone dead in cereals.
- Location
- Cambridgeshire UK
Was thinking what would be the issue if it didn't get killed, its hardly going to come out of the top of the rape and if it produces some seeds they will be catch crop before wheat! Not sure if they could gigger up eurasic oil levels tho!