How safe are manganese sulphate applications?

[DrWazzock]

Well how safe are they?
There is well known toxicity to the human nervous system.
How safe are they for insect life?
Never applied here until the 1970’s.
Lathered it on since.
Sometimes danger is more prevalent in the close and familiar than the exotic.
We never apply it to grass. Yet the grass manages alright.
Do we get sucked in to knee jerk applications purely because of transient deficiencies which will sort themselves out.
I’m the worst culprit for that.
My cousin just sent a pallet load back. Said it’s a waste of time. Got me thinking.

 

[Flat 10]

Well how safe are they?
There is well known toxicity to the human nervous system.
How safe are they for insect life?
Never applied here until the 1970’s.
Lathered it on since.
Sometimes danger is more prevalent in the close and familiar than the exotic.
We never apply it to grass. Yet the grass manages alright.
Do we get sucked in to knee jerk applications purely because of transient deficiencies which will sort themselves out.
I’m the worst culprit for that.
My cousin just sent a pallet load back. Said it’s a waste of time. Got me thinking.

Very interesting. Good points raised. I don’t know most of the answers but Some black land wouldn’t have a crop at all with no application. Isn’t the most harmful thing breathing in the dust? Liquid safe unless you are breathing in the spray?

 

[ollie989898]

It's a heavy metal at the end of the day, don't go covering your skin in it or breathing it in.

 

[DrWazzock]

Very interesting. Good points raised. I don’t know most of the answers but Some black land wouldn’t have a crop at all with no application. Isn’t the most harmful thing breathing in the dust? Liquid safe unless you are breathing in the spray?

I’m certainly considering going down the liquid route and using it a bit more sparingly. Not getting the land too loose either.

 

[Grass And Grain]

Can't manage without it on the sand.

Isn't it thea mine workers who get health problems?

As suggested, maybe stick to using liquid from a operator safety point of view.

 

[ollie989898]

The powders are a PITA in all honesty. I wouldn't use it mostly from an ease of use point of view.

 

[DrWazzock]

Can't manage without it on the sand.

Isn't it thea mine workers who get health problems?

As suggested, maybe stick to using liquid from a operator safety point of view.

I’d say we can’t manage without it on the sand for over wintered cereals. Problems arise in a dull spring on puffy seedbeds due to too much oxygen in the soil promoting too much bacteriological activity which ties up manganese and deprives the plant if an essential component of its photosynthesis mechanism.
But rye doesn’t suffer, nor do oats which have beneficial root bacteria, nor do spring cereals with higher light levels. And what did we do on light land before manganese sulphate powder came along? Didn’t grow winter wheat?
Just got me wondering generally about my addiction to imported inputs, what with one thing and another.

 

[Grass And Grain]

I’d say we can’t manage without it on the sand for over wintered cereals. Problems arise in a dull spring on puffy seedbeds due to too much oxygen in the soil promoting too much bacteriological activity which ties up manganese and deprives the plant if an essential component of its photosynthesis mechanism.
But rye doesn’t suffer, nor do oats which have beneficial root bacteria, nor do spring cereals with higher light levels. And what did we do on light land before manganese sulphate powder came along? Didn’t grow winter wheat?
Just got me wondering generally about my addiction to imported inputs, what with one thing and another.

Mainly free living nematodes why we can't grow winter cereals on sand. FYM helps, Mn helps. Rolling helps a lot.

Lot to be said for a cheaper to grow spring barley......until a late s barley harvest season, then it rains for 3 weeks. Have seen unharvested s barley, but you can normally cut wheat.

Think I'll stick to my 'bit of everything, don't have eggs in one basket' philosophy.

 

[DrWazzock]

Mainly free living nematodes why we can't grow winter cereals on sand. FYM helps, Mn helps. Rolling helps a lot.

Lot to be said for a cheaper to grow spring barley......until a late s barley harvest season, then it rains for 3 weeks. Have seen unharvested s barley, but you can normally cut wheat.

Think I'll stick to my 'bit of everything, don't have eggs in one basket' philosophy.

Free living nematodes. We have suspected them but never really pinned it down. In beet as well with mystery stunting in June July, if the water table brings them up after heavy rain.
Good point. Glad you reminded me.

 

[Secret Agronomist]

Yep, lots of free living here, rye seems to be the best at shrugging them off. Always use a chunk of Mn but moving to liquids.

 

[DrWazzock]

Also very right about not too many eggs in one basket.
But if I have too many baskets I spend too long shuffling and repairing baskets and not long enough collecting eggs.
Wheat, barley, beans, OSR and a bit of grass will do us nicely but the beets going. To much overhead and just been reminded of the free living nematode disasters we have had in wet late springs. Sorry for going off thread but my brain works laterally.

 

[Flatlander]

We get small patches of mn shortage showing up in some years. More so if I’ve used roundup as a burn down or following a crop that was roundup resistant And a couple of heavy in crop applications were used.

 

[whiteford]

An interesting side affect of manganese is the control of mildew in ww, every year I used to suffer from it even using 2kg/ha at t0. I've since started using it at t0 t1 and t2 and havnt seen mildew since.

 

[robbie]

Also very right about not too many eggs in one basket.
But if I have too many baskets I spend too long shuffling and repairing baskets and not long enough collecting eggs.
Wheat, barley, beans, OSR and a bit of grass will do us nicely but the beets going. To much overhead and just been reminded of the free living nematode disasters we have had in wet late springs. Sorry for going off thread but my brain works laterally.

Completely off topic and perhaps better in the beet thread but is anyone going to try the new nematicide that's made from garlic????

 

[robbie]

Ps I thought it was a well known fact roundup can exaggerate MN deficiency, it's all to do with the soil microbes