d williams
Member
I’d be more concerned with volumes applied what’s the plants feed stock???
Fym or Digestate?
- Thread starter teslacoils
- Start date
livestock 1
Member
I have no idea about that and it’s not really any of my business
I was actually trying to be helpful
Will need grass down at least three years to see much improvement.
- Location
- Lincolnshire
Yes, three years grass, three years cereals.
FYM then at 25t/ha, it'll give you sufficient P and K for both this crop and the next given P & K indices are 2.5. Probably the time to use digestate is spring 2022 and no FYM then. If you could get the digestate application done in two splits similar to how you'd apply bagged N.
d williams
Member
Only two farms uses the product??
Or only two had problems
livestock 1
Member
I only know of two farms with the problem
ollie989898
Member
P and K don't leach.
livestock 1
Member
Unfortunately they run away though so in theory they do
That‘s a lot of assumptions with few facts. Was the forage analysed?
livestock 1
Member
I have no idea not my farms, just going off what the farmers/ workers are saying.
That’s a fair assumption to say it’s not too considering!
Anaerobic digestion should kill well over 90 odd % of E.coli. Untreated FYM manures etc will have fairly hefty loading of E.coli.
Obviously if someones going to surface spread digestate on grass then graze straight away that'll increase the risk, but if everyone's being sensible, ie. injecting into grassland for maximum return on N benefit and minimal leaf contamination then can't see much of a risk at all.
There's the right way to do it and there's a wrong way..... as ever.
NeilT123
Member
- Location
- West Sussex
Just to confirm, you cannot choose your organic manure year, the rules are "You must not use more than 250kg of total nitrogen from all organic manures spread in any 12 month period on any single hectare of your land." In my experience it is this rule that catches most people out.
- Location
- Lincolnshire
Ty. Good to know, although that must pretty much f**k everyone who uses fym as I've never met anyone who applies under the full rate in one dollop.
K will leach, especially on sandy soils. P will at very high indices, though most P pollution is from run off.
What do you think this muddy land drain water contains?
NeilT123
Member
- Location
- West Sussex
You are correct, if you are in a NVZ a "good dollop" of FYM effectively means that you cannot legally apply any other manure to that field for 12 months.
michael N123
Member
Both if you’ve access to it
ollie989898
Member
Exactly, P and K don't leach except where you are actually losing soil particles, which shouldn't happen and if soil is being lost that's a separate issue from how much P and K you have put on.
- Location
- Lincolnshire
So provided it goes on one year and one day after the previous one, all is fine? And such the battle between clipboard madness and farmers "bang it on it'll be right" begins.
ollie989898
Member
I've heard people talk of the potential botulism risk from using grass fed with digestate but all the research I have read suggests that the bacterial and fungal loading of digestate is hugely reduced by being treated in an AD unit. Weed seeds and the like are basically destroyed too.