Potash
- Thread starter tesma
- Start date
The Kernel
Member
I would like to know a bit more about it. Liquid or solid to start with.
- Location
- Derbyshire
Can we have analysis and product description please.
Subject to all being straight forward and no hidden surprises then I can say we would be interested.
Block of Grassland with current indexes of 1, artic access postcode DE6
Subject to all being straight forward and no hidden surprises then I can say we would be interested.
Block of Grassland with current indexes of 1, artic access postcode DE6
QUOTE="The Kernel, post: 1546344, member: 10720"]I would like to know a bit more about it. Liquid or solid to start with.[/QUOTE]
It's a liquid. The Farmers Forum have ask me not to advertise on here with out going through the creat procedures. If you are interested call me 07834420752
It's a liquid. The Farmers Forum have ask me not to advertise on here with out going through the creat procedures. If you are interested call me 07834420752
- Location
- Chipping Norton
If this is the liquid waste product out of the paper factory in Manchester I would advise people to stay well clear. It did contain (and probably still does) very high sodium content. I undertook some trials with it on grassland and even at low application rates it scorched the hell out of the grass. The sodium levels also had a detrimental effect on the soil structure. The liquid also comes out of the factory at about 40 degrees centrigrade and arrived in the field at not much less than this after being in the tanker for an hour. This will de-wax any crop it is spread on and exacerbate the scorch problems. Yes it does contain some useful elements but the downside is as above. I also suspect that this material will need to be spread under deployment, therefore the contractors will be trying to apply at their maximum recommended rate to reduce deployment costs/acre.
Can't see that it's the same probuct has they don't deliver to Oxfordshire
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beefandsleep
Member
- Location
- Staffordshire
What is the safe level for sodium? @tesma sent me an analysis (thank you).
16188mg/kg sodium on a fresh weight basis. At the rate applied, 26t/ha that would be 421kg/ha wouldn't it? Sounds a lot, is it an issue?
Edit. Looking at the analysis again I think the actual amount of Na applied per m3 would be 21.82kg so if 26 cube rather than tonnes it would be 567kg
16188mg/kg sodium on a fresh weight basis. At the rate applied, 26t/ha that would be 421kg/ha wouldn't it? Sounds a lot, is it an issue?
Edit. Looking at the analysis again I think the actual amount of Na applied per m3 would be 21.82kg so if 26 cube rather than tonnes it would be 567kg
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- Location
- Chipping Norton
I don't recall mentioning Oxfordshire in my response above. The liquid came from Ahlstrom in Manchester and the trials were undertaken in Lancashire.
- Location
- Chipping Norton
Which ever way you look at it, it's a large amount of sodium, and twice the amount of Nitrogen the average wheat crop receives. Does the crop or the soil need this. No. Sodium is excellent at dispersing the clay platelets in the soil, the soil structure collapses causing anaerobic conditions very quickly. This is not helpful to crops and soil fauna (except the anaerobic bacteria).
RB209 gives a recommendation of 200kg/ha of Na2O for beet on an K index 0 soil. This is the largest amount recommended for a very responsive crop. This equates to ~150 kg of Sodium. One third of the amount applied above!
How do you get around the EA deployment caviat of 'disposal' against 'recycling' as applying this much sodium surely constitutes disposal?
In what year did you have it spread? We have be registering it with EA for round 9 years now. So if they are happy with registering it then where is the problem? We spread around 1100ha a year with this product and we have some very happy farmers which are happy to have the product year after year!