- Location
- Northumberlandia
Id guess so, but i have no real means of measuring Yield Data from the zones in each field as Combine isnt equipped to do this.I presume the highest yielding parts of the field will always use more p and k
Id guess so, but i have no real means of measuring Yield Data from the zones in each field as Combine isnt equipped to do this.I presume the highest yielding parts of the field will always use more p and k
I presume the highest yielding parts of the field will always use more p and k
It’s surprising how much yield maps correspond to soil types/zones, I’m slowly starting to get the yield maps to even out across the field using vr seed, N,P & K this is also starting to show yield increases as the crops even up. However does the yield increase cover the cost of the technology/time/imputs only time will tell? I’m hoping to benchmark the whole system this year now as it’s been fully implemented as of last season and built up a few years of yield maps. Also putting the Weighbridge in means we can quantify the results, so time will tell.A few people do VR P and K based on yield maps. Not so good if you bale straw as you’re not mapping straw yield. You’ve also got K leaching that you can’t guess as it varies with soil type and season. You can pick most of that up when you do soil sample. I guess you’d just sample the yield zones.
It’s surprising how much yield maps correspond to soil types/zones, I’m slowly starting to get the yield maps to even out across the field using vr seed, N,P & K this is also starting to show yield increases as the crops even up. However does the yield increase cover the cost of the technology/time/imputs only time will tell? I’m hoping to benchmark the whole system this year now as it’s been fully implemented as of last season and built up a few years of yield maps. Also putting the Weighbridge in means we can quantify the results, so time will tell.
I do vari rate and think the biggest actual saving comes on the amount of lime used,haven’t got yield mapping but you can visibly tell the crops are more even across the fieldA few people do VR P and K based on yield maps. Not so good if you bale straw as you’re not mapping straw yield. You’ve also got K leaching that you can’t guess as it varies with soil type and season. You can pick most of that up when you do soil sample. I guess you’d just sample the yield zones.
Interesting, but arnt you holding the good bits back and helping the bad bits catch up?, after all not all soils will yield 5t / acre despite what you apply.It’s surprising how much yield maps correspond to soil types/zones, I’m slowly starting to get the yield maps to even out across the field using vr seed, N,P & K this is also starting to show yield increases as the crops even up. However does the yield increase cover the cost of the technology/time/imputs only time will tell? I’m hoping to benchmark the whole system this year now as it’s been fully implemented as of last season and built up a few years of yield maps. Also putting the Weighbridge in means we can quantify the results, so time will tell.
As long as you don’t go over N max (we’re in a nvz) you can set the rate at whatever you like. Biggest affect of vr N will be the first dose helping to boost tillers on the thinner patches, N2 I’ve found to be pretty even after that. However by N2 we know what’s going to yield and what isn’t so we can save N form missed/thin patches and use it to boost where the biggest yield potential is.Interesting, but arnt you holding the good bits back and helping the bad bits catch up?, after all not all soils will yield 5t / acre despite what you apply.
Agree about the seed but in the top field there’s a clear split left to right in the middle, possibly two fields years ago ??As long as you don’t go over N max (we’re in a nvz) you can set the rate at whatever you like. Biggest affect of vr N will be the first dose helping to boost tillers on the thinner patches, N2 I’ve found to be pretty even after that. However by N2 we know what’s going to yield and what isn’t so we can save N form missed/thin patches and use it to boost where the biggest yield potential is.
I’ll be honest though, by far the most effective vr rate application I’ve found seed, especially on our varying soil types. Seed is also your cheapest input by a long margin! The more even number of tillers across the field is to start with the less the N varies at N1 onwards.
Flat rate seed
View attachment 856299
VR seed only.
View attachment 856298
That particular field isn’t really wide enough to make it efficient to drill that way, it would also mean drilling up/down hill causing runoff! The soil type changes progressively from a black sand to brown soil then yellow clay at the worst end, the seed rate is upped progressively.Agree about the seed but in the top field there’s a clear split left to right in the middle, possibly two fields years ago ??
In my cynical mind I’d suggest drilling parallel to the road on the right and then upping the seed rate as you get across to the gateway opposite the top field !!
SOYL want something like £8000 to map my farm and then a few hundred a year to make the maps after that, I’m letting them do a trial this year but I think a knowledge of your soils and looking at yield maps can give you the info you need to tinker rates while sat on the drill, it wouldn’t work for everyone but it works for me !!!
That particular field isn’t really wide enough to make it efficient to drill that way, it would also mean drilling up/down hill causing runoff! The soil type changes progressively from a black sand to brown soil then yellow clay at the worst end, the seed rate is upped progressively.
I Don’t use SOYL, the company I use enables me to have far more input into the field zones/seed maps etc and there software program allows me to write my own maps as well as access to the ndvi imagery, growth stage modelling, yield predictions (been VERY accurate), nutrient planning etc or I can get them to do it all if I like. I also think thet SOYL worked out a lot mor expensive.
Rhiza Digital, it was called I P F UK. Don’t think they currently operate outside the uk.And what company is that? Do they work outside of the uk?
What happens if you don’t put any Fert on?
good morning. I'm putting together a presentation for dealers and open evening talks i do. I try to us facts rather then my opinion. Its been 20 years since i was a farm manager. Can you tell me what your fertliser spend per HA is? feel free to pm if you want.
Kind regards
RobT
There’s no doubt they soon come down to a average price,if a small farmer has a choice between a high acreage/high tech with potential of high repair spreader or a brand new hyd on/off spreader he’ll probably take the new one with 0%Nobody's mentioned long term reliability/running costs of these high tech spreaders? How many threads are there in tff machinery section about problems with weigh cells/actuators. Would you actually know if section control not working?
In my experience fertiliser and electrics are not a good combination.
Another big one is resale value? Does your average 2nd hand fert spreader buyer want GPS/weigh cells, electric actuators?
Or do you just park them in the nettles because you have saved so much money!?
Musings from a Luddite.