sulphur sources

[Neddy flanders]

anyone got any sources of readily available sulphur (sulphate) if I don't use doubletop type fertiliser. have plenty of straight N in shed????

 

[robbie]

I'm sticking with polysulphate again this year.

 

[farmerm]

I used polysulphate last year. But given the choice I would rather a N+S product than have to do an extra pass in the spring...

 

[Grass And Grain]

I was told that polysulphate was slow to release its nutrients, as it is still in the rock form.

PotashPlus however, is a polysulphate and MOP compound, and therefore has been powdered before compounding - so probably more readily available. So maybe a better product than Polysulphate if you also have a potash requirement as well as a more quickly available sulphate.

 

[neilo]

What else needs putting on? Calcifert S supplies Sulphur & Calcium, Polysulphate or PotashPlus supplies K &S, Kieserite provides Mg & S, KornKali provides K, Mg & S. All are fairly readily available and relatively good value.

 

[robbie]

I was told that polysulphate was slow to release its nutrients, as it is still in the rock form.

PotashPlus however, is a polysulphate and MOP compound, and therefore has been powdered before compounding - so probably more readily available. So maybe a better product than Polysulphate if you also have a potash requirement as well as a more quickly available sulphate.

It is slower but I've not found it to be a problem and being slower it does seem to trickle feed the crop through the season and as S will leach as easily as N it's no bad thing.

With things like double top I do wonder how much nutrient is left for uptake in April/may when it's used as the only source of S and is applied in one big dollop at the end of feb.

On a separate note my polyS was £152 ton which makes that a very cheap source of S03 and the potash combined with regular muck will be the only K I apply.

I did get offered G2 amsul for £160 but i think he must have made a mistake, has anyone got any recent prices.....perhaps o should have had a load[emoji848]

 

[Brisel]

Sulphur requirement is at the same time as N so you don’t need much at this time of year. As @neilo said, there are many forms of S. Add gypsum, digestate, sewage, FYM, slurry, and Fibrophos to the list of sources.

 

[Neddy flanders]

What about ?

YaraVita THIOTRAC 300

YaraVita THIOTRAC 300 is a fully formulated liquid fertiliser solution containing 300 g/l sulphur for foliar application to prevent and treat sulphur deficiencies on a wide range of crops.

Highly Concentrated Liquid Solution
A true liquid containing 100% soluble sulphur
Does not require oxidation before can be absorbed by the plant
Also contains nitrogen to help maintain the N:S ratio

@Brisel

 

[Brisel]

That might help. Your crop will need 50-100 kg/ha of SO3 (10-20 kg of S) so think about how you’d apply little and often. Sulphur is highly leachable.

 

[Sprayer 1]

What rate of polysulphate are you guys putting on to ground that has a skittering of FYM each year?

 

[fudge]

anyone got any sources of readily available sulphur (sulphate) if I don't use doubletop type fertiliser. have plenty of straight N in shed????

I spread solid ammonium sulphate. Works fine for me. IIRC we paid £225/t for a part load which is all I need.

 

[robbie]

A cwt an acre for cereals and sugar beet and a cwt and a half for OSR.

That's on land that gets mucked heavily for beet and then gets a "skittering" every year after the first cereal.

 

[neilo]

I spread solid ammonium sulphate. Works fine for me. IIRC we paid £225/t for a part load which is all I need.

I don’t think the op wanted an AS product though. He was enquiring about other sources of S to go with the straight N that was already sitting in the shed.