Wheat seed rates

Spud

Member
Arable Farmer
Location
YO62
Winter barley going in first here, not started yet, rain stopped play this week. Wheat Will start at 180kg/ha and go up by 20kg/weektil the end of November. Better a good spring crop than a poor winter one. Beans usually late October, but tried a bit earlier this last time and no regrets, so ground conditions will dictate that one - currently got mustard growing on those fields.
 

Farmer Roy

Member
Arable Farmer
Location
NSW, Newstralya
so far not one person above has mentioned or taken into account the germination% of the seed they intend to sow . bearing in mind that the pass result for certified seed is only 85% you could if you knew it vary your seed rate up or down by as much if not more than any allowance for tgw

I always take germ % into account - usually around 80 - 90 %
 

Brisel

Member
Arable Farmer
Location
Midlands
If it's C2 it has to be at least 85% germination

834944

834945

 

Brisel

Member
Arable Farmer
Location
Midlands
400 seeds/m2 going in here for early October assuming at least 85% establishment, allowing for a germ of >90%. All at variable rates.

Original planned start date was this week. A decent week would get all mine sown on mostly lighter land so I'm not too worried yet. A few acres of winter beans to Claydon drill for a neighbour afterwards. This is one of the upsides of a big proportion of spring cropping.
 
In my very limited experience the germination in the bag is no issue the grief potential begins once it is drilled. I would not be as brave as boysground after maize but he is probably on kinder dirt. I tended to have thicker angrier crops anyway because of background fertility.
 
400 seeds/m2 going in here for early October assuming at least 85% establishment, allowing for a germ of >90%. All at variable rates.

Original planned start date was this week. A decent week would get all mine sown on mostly lighter land so I'm not too worried yet. A few acres of winter beans to Claydon drill for a neighbour afterwards. This is one of the upsides of a big proportion of spring cropping.

I would be the same as you, the visual effect of the claydon always made me nervous abd more than once I had a very delayed and sporadic emergence behind it. Fantastic drill though.
 

Brisel

Member
Arable Farmer
Location
Midlands
I would be the same as you, the visual effect of the claydon always made me nervous abd more than once I had a very delayed and sporadic emergence behind it. Fantastic drill though.

I'm not convinced that the evenness of seed depth and spacing is what's fantastic about it! The wide row spacing means there is a need for good tillering so the one thing you don't save money on in DD is seed rates. I've found that Siskin doesn't tiller prolifically despite its aggressive growth habit. I'd sooner have a thick crop than a thin one. The thin ones need everything working in its favour to yield well which can be a big ask in many years.
 

Lincsman

Member
Arable Farmer
Location
Lincolnshire
I'm not convinced that the evenness of seed depth and spacing is what's fantastic about it! The wide row spacing means there is a need for good tillering so the one thing you don't save money on in DD is seed rates. I've found that Siskin doesn't tiller prolifically despite its aggressive growth habit. I'd sooner have a thick crop than a thin one. The thin ones need everything working in its favour to yield well which can be a big ask in many years.

You say that but this year in big yields there was a big penalty (-30%) on the yield meter doing any bits double drilled, quite alarming really.
 

Brisel

Member
Arable Farmer
Location
Midlands
You say that but this year in big yields there was a big penalty (-30%) on the yield meter doing any bits double drilled, quite alarming really.

Did it go flat? Double rate would be a lot more than anyone else would aim to do. I ignore those bits of the yield maps anyway.
 

PSQ

Member
Arable Farmer
220 - 276kg/ha, satellite derived variable rate on some cobbly ploughed ground, in before the rain on Sunday.

Home saved, germination tested at 92% (tetrazolium and full test the same), TGW 52g, vibrance duo treated (2nd wheat), and crucially it's Grafton so it needs a high seed rate to get the best out of it. Just repeating last years recipe as it came up trumps this year.
276kg equals about 350 plants /m2 at 75% emergence, or 300 plants at 60%. Thought I'd screwed up by forcing it in to a rough dry seed bed, but it's had 40mm rain to start it off, and counting. Couldn't go near the field with a drill now...
 

Steevo

Member
Location
Gloucestershire
Usually use 200kg/ha flat rate starting from around about 20th Sept - seems based on many here that's considered on the low side.

Only 12ac drilled so far this year due to the weather - sure will come right in the end though.
 

B'o'B

Member
Arable Farmer
Location
Rutland
Usually use 200kg/ha flat rate starting from around about 20th Sept - seems based on many here that's considered on the low side.

Only 12ac drilled so far this year due to the weather - sure will come right in the end though.
I’ll be starting at around 300 seeds/m2 which gives about 160kg/Ha. Nearly ½ what some are quoting even that is 20% higher than we often go at.
 

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