Does anyone use Langbeinite fertilizer on their mango trees?

[Lostkeys]

I was looking for a strictly potassium fertilizer and discovered Lanbeinite. Down to Earth Organics sells a version of it that I'm interested in buying, but I'm hoping someone can provide their experience with it applied to mango trees. It contains 22% sulfur, 22% potassium, and 10.8% water soluble magnesium, and has a neutral PH. Down to Earth lists the chlorine content as <3%.

Thanks in advance.

[Simple_Jack]

Hi,
I myself use Molasses. I use it in both when I water the trees in and out of pots and as a foliage spray. Its been proven that they respond positively to this and actually take in nutrients in this manner as well.
Molasses is great for the gluten that all plants need but has the added benefits of being a good source of iron, Potassium and Calcium which they also need.
Hope this helps in some way.

sorry about the message ...new here

[Lostkeys]

Hi,
I myself use Molasses. I use it in both when I water the trees in and out of pots and as a foliage spray. Its been proven that they respond positively to this and actually take in nutrients in this manner as well.
Molasses is great for the gluten that all plants need but has the added benefits of being a good source of iron, Potassium and Calcium which they also need.
Hope this helps in some way.

sorry about the message ...new here

I appreciate the input, thanks.

[pagnr]

Greensand is a rock dust source of Potassium, basically very fine granite dust. You can get it from the places that make cemetery headstones by cutting granite.
Potassium citrate is another source I have seen. Potassium is common in rock minerals, so there should be other sources.

[Seanny]

I’ve used it for fertigation of trees, including mango.
Can’t add much since Mg is so high.

[skhan]

I use 0-0-50 which i think is potassium sulfate on my mature mango trees
I can't find a 0-0-22 around me in 50 lbs bags.

[Oolie]

Sul-Po-Mag is another name it's sold under.

It's a pricey alternative to wood ash. Wood ash is easy and has a great calcium potassium ratio for mango trees. That said, it does drive up the pH, but that may be beneficial depending on how low your soil is to begin with. For me in the arid clime, I used battery acid to bring the fertilizer pH down to 8, much less micro lockout that way.

[Finca La Isla]

Anybody using Azomite?
Peter

[K-Rimes]

Anybody using Azomite?
Peter

I use Down to Earth azomite pellets on every plant I have, and especially on potted plants. Used about 100lb so far this year. I notice a nice difference when I apply it, especially if it has been awhile. Potted plants seem to really respond, probably because constant watering drains the soil of nutrient and mineral. Can't imagine that a mango in ground wouldn't love it too.

[Lostkeys]

Anybody using Azomite?
Peter

I use azomite. My property has a lot of coral/lime which drives the PH up. It's also very sandy with minimal organic matter. I rely on mulch, southern ag citrus spray, and azomite for nutrient supply.

[cassowary]

Anybody using Azomite?
Peter

It’s very expensive here in au since it’s imported.

But there are local sources of this aluminum silicate sedimentary type of material.

I use it to reduce sun burn on plants I move from the shade house to full sun, it sticks quite well. With a bit of glue(cose) it sticks better. Gluecose source is usually molasses.

I haven’t seen any inporovent using original azomite brand as a foliar or added to potting mix.
Probobly because the potting mix is already good enough.

Best soluble potassium would be potassium sulphate. Really affordable here in au atleast.
Stay away from potassium chloride.

Potassium sulphate is quite solible so will leach out quite fast.

If you already have high Mg probobly best to avoid Langebeinite.
But maybe your on calcitic soil?

Sorry have no experience with greensand.
If your soil is already high in potassium or have incorrect ratio of K and P then adding more will not likely increase fruit quality.

[jendy]

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