Bogweevil
Member
I think you mean a coomb, and grandfer did well enough thank you.
What seed rate?
- Thread starter colhonk
- Start date
I think you mean a coomb, and grandfer did well enough thank you.
- Location
- NSW, Newstralya
err, 35 - 50 kg / ha for durum & bread wheats . . .
- Location
- Limousin, France
,168 lbs an acre and finished by Stratford mop.
1/4 of the yield expectation, so a 1/4 of our seed rates!
limestone brash
Member
You’d get it in much quicker if you didn’t mess about counting all the seeds
Simple formula using the thousand grain weight someone else's machine has counted
ollie989898
Member
I reckon about 75kg/acre...
Because seed is one of the cheapest inputs you can buy, and high seed rates on poor textured land works a treat. I sow the good bits at 300 seeds m/2 (180kg ish), and the stuff "harder than a hoors heart" at 450 seeds m/2 (270kg plus).
Tried dropping the rate on the good land (robbing Peter to pay Paul), but soon learned that low rates don't work if you get (another) a crappy Spring.
- Location
- Lincolnshire.
mikep
Member
- Location
- Arse end of Surrey, UK
1.5 cwt acre of Red Lammas going in the first week of September. Was bred long before anyone had heard of metric and definitely wouldn't grow in hectares and kilos. it would probably prefer Groats to the Perch or whatever was current in the 16th century. It also doesn't realise that black grass is competitive, it reckons it's a bit of a girl's blouse really so quite useful for early planting.
ollie989898
Member
- Location
- the brecks norfolk
Good point, I forgot to add in % germination and %establishment (or field losses)
((Seeds per m2 target population x TGW) / % germination) x (100/(100-field loss))
eg.
((250 x 55) / 95) x 100/(100-10))
(13750 / 95) x (100/90)
144.7 x 1.11
160.6 kg/ha
PS. there are many online and phone apps which can do the calculations for you
- Location
- Bedfordshire
I am convinced it was generally a mistake following advice on dropping seed rates in the 90s and 00s. We are now back up to 'undredweight an arf' (187kg/ha) or more, and of course back to October drilling.
As far as VR seeding goes, it is very much a matter of decision on the day. Sometimes the rate needs varying more than other times, and it needs to vary more than you think, between fields and within fields.
As far as VR seeding goes, it is very much a matter of decision on the day. Sometimes the rate needs varying more than other times, and it needs to vary more than you think, between fields and within fields.
- Location
- Bedfordshire
IMO it is as important to vary between fields and blocks as within fields/blocks.