dontknowanything
Member
- Location
- Cambridge
This is categorically not the result obtained from trials in the UK.
Weaving Big Disc
- Thread starter warksfarmer
- Start date
This is categorically not the result obtained from trials in the UK.
mikep
Member
- Location
- Arse end of Surrey, UK
Counter intuative as with most life sciences. Logic suggests (and some tests back up) that an even grid would be the best spacing as this would limit competition (aka broadcasting). However bunch the seeds together tight and you still get broadly the same yield so whats happening? I can only think that the plants get some sort of of hormonal message that leads them to root 'sideways' and very fast to overcome the competition and perhaps where roots are very close there is some symbiotic effect that makes nutrients more available.
hollister
Member
- Location
- Alcester, warks
There is a lot of research supporting the thought about competitive rooting. Some plants know if there is a plant the same or a competitor and will root accordingly to help or hinder the neighbour.
as long as I don't know the details of the trials I can't comment. I only know how the trials are done over here. So their was a valuable comparison of the Amazone trials and the research done of the organic, as even one site was identical.
In the end it all boils down to: on the Largest Island in Northern Europe all is different than the rest of the world.
Looking forward that they find even a different gene sequence in human beings.
York-Th.
warksfarmer
Member
Haven't seen any trial data but completely agree from what we have done here.
We are definitely growing more yield, although we still are some way off the 5t club!, since we pushed seed rates up. One of the best examples of this was harvest 2013 where in a block of 80ha of Edgar milling wheat 72ha averaged 10.14t/ha over a weighbridge at 17% moisture. The last 8ha averaged 8.9t/ha.
The only difference throughout the year was the 8ha field was the last one to be drilled and due to overlaps we were low on seed, so this was planted at 190kg/ha while the rest went in at 250kg/ha.
Also harvest 2014 on spring wheat. Where we double drilled to use up some seed basically the crop yielded another 2t/ha against the rest which was planted at 225kg/ha. The double drilled bit ended up at 400kg/ha because we turned the drill down a bit.
At the end of the day if there is not a seed there you won't get a plant, so better off planting a few to many and then treat the crop accordingly.
dontknowanything
Member
- Location
- Cambridge
Don't get so upset when you are contradicted.
[As it happens, I saw trial data from IHARF in central Canada which concluded the same thing - seed rates should not be reduced proportionally with row spacing, and the only benefit to reducing them slightly was a saving in seed cost]
- Location
- Bedfordshire
Yes we are different, we are the best farmers and we produce more Oilseed Rape, Wheat and Barley per Hectare than any other country in the world.
mikep
Member
- Location
- Arse end of Surrey, UK
And hopefully we will not be paying our european neighbours the £1.7 billion they have demanded to support the poor Germans and French!!!!!!
mikep
Member
- Location
- Arse end of Surrey, UK
Don't get so upset when you are contradicted.
[As it happens, I saw trial data from IHARF in central Canada which concluded the same thing - seed rates should not be reduced proportionally with row spacing, and the only benefit to reducing them slightly was a saving in seed cost]
Seems everything we know we don't know so as to speak. Seed rates can vary enormously and not have any effect if the season is right.
Agrii now saying can help to reduce seed rate in spring wheat, I don't have the nerve to do that because you only get one shot at it.
thought the germans and french have better yields of OSR than us
- Location
- Bedfordshire
The German yields are close behind UK yields, like us the Germans do have good and bad years. And I guess it is the good years we get to hear about ! The French are normally about 10% lower.
DKA,
Don't get so upset when you are contradicted.
[As it happens, I saw trial data from IHARF in central Canada which concluded the same thing - seed rates should not be reduced proportionally with row spacing, and the only benefit to reducing them slightly was a saving in seed cost]
I'm still waiting to see the British results you are referring to.
I'm not seeing myself contradicted at all. I referred to research done over here, looked at the Amazone results which I can value quite good and see where their "short comings" where and what they said. They didn't say altogether: "Don't reduce the seed rate, if you look at all the results. They did clearly point out the circumstances where you shouldn't reduce the seed rate.
So where is the contradiction?
If I look at my PL client which is just seeding well below 100 seeds/m2 and he is also yielding 8 to 9 t/ha Wheat & Triticale so why should it not work?
But he is never using a 2.4 mm bottom sieve for his seeds and has very different seeding dates.
I would just call it: "the debate is open"
York-Th.
I think the results he's referring to are a TAG trial the data from which is subscription only so he can't publish it here on a public website without danger of getting himself sued !
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dontknowanything
Member
- Location
- Cambridge
This is correct. Not sure if IHARF data is public domain either.