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Langbeinite

NickJames

By NickJames
in DISCUSSING PALM TREES WORLDWIDE

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Dartolution Veteran

Dartolution

Posted
Posted

@NickJames Im not sure about sandy soil - I don't think it would hurt. I use THIS here for my extra hungry palms, bananas, and tropicals. It works very well for me using potting soil, and amended clay. I cant imagine it being a problem in sandy soil. 

 

  • Like 1
Silas_Sancona Grand Master

Silas_Sancona

Posted
Posted (edited)
15 minutes ago, Dartolution said:

@NickJames Im not sure about sandy soil - I don't think it would hurt. I use THIS here for my extra hungry palms, bananas, and tropicals. It works very well for me using potting soil, and amended clay. I cant imagine it being a problem in sandy soil. 

 

^ x 2 ..Might actually be better for sandy soil ( or any really ) since, as a denser crystal, it will release pulses of nutrients as it is worn down when water is applied vs. wash through the soil quickly like K fert options that dissolve faster can when watered...

One of several good articles to research: https://www.cropnutrition.com/resource-library/potassium-magnesium-sulfate-langbeinite

Edited by Silas_Sancona
edit
  • Like 2
sonoranfans Grand Master

sonoranfans

Posted
Posted
20 hours ago, NickJames said:

Does this have an appropriate ratio of magnesium to potassium to be applied without toning it down to my barren, sandy soil?

 

thx :)

 

Down to Earth Organic Langbeinite Fertilizer Mix 0-0-22, 5 lb https://www.amazon.com/dp/B00VJN96LG/ref=cm_sw_r_cp_api_glt_i_H3QG08ST6VHE5WX8MBM0?_encoding=UTF8&psc=1

Langbenite is a naturally occurring crystal that slowly dissolves.  It contains K, Mg, S all of which are good for your palms.   the particle size range is pretty wide from dust to coarse sand size, and the crystals are dense.  The K is slower release than other "potash" type product due to density of crystals and size variation, which slows dissolution.  This is an especially good thing in sand as sand has no cation exchange, it holds minimal nutrients.  Potassium is almost always in deficiency in Florida sandy soils due to its higher solubility and our heavy rains, so there is very little danger of too much K in your soil if its slow release.  Mg will also be low in sandy soils.  In actual function, you want the ratio of bioavailable Ca to Mg ratio to be about 3:1 for most palms.   The way to keep these ratios is use a controlled release fertilizer like florikan with the proper formulation for palms.  You can also use palm gaim, has the same formula just add it 2-3x as often due to its shorter release profile and lack of prill membrane pore size designed for each nutrient's solubility(patent).  Langbenite is good for helping correct low K, Mg.  The best solution is to ammend your soil so it has cation exchange(either organics or clay willo do that) then the fertilizer, including langbenite will dissolve than be taken up in the cation exchange of the soil for later release as these elements are depleted in feeding.  Sandy soil is tricky, its smart to ammend it since it can really limit what you can grow well.  I use amended soil(organics in the soil column are now probably gone) florikan and one a year some langbenite at about this time.   One to two handfulls in the rootzone away from the trunk depending on size is what has worked for me.

  • Like 4

Formerly in Gilbert AZ, zone 9a/9b. Now in Palmetto, Florida Zone 9b/10a??

 

Tom Blank

sonoranfans Grand Master

sonoranfans

Posted
Posted

by the way dont buy on amazon, they rip you for $21 for 5 lb.  tht is $4/lb.  Here it is for 0.80/lb.   https://www.7springsfarm.com/products/kmag-or-sulpomag-granular-0-0-22-21s-11mg-50-lb-bag?variant=39386641760461&gclid=Cj0KCQiAmeKQBhD

watch out for shipping, look for a place you can pick up from in your area.  sulpomag, KMag and langbenite are all the same material:  Potassium magnesium sulfate.

  • Like 4
  • Upvote 1

Formerly in Gilbert AZ, zone 9a/9b. Now in Palmetto, Florida Zone 9b/10a??

 

Tom Blank

Merlyn Grand Master

Merlyn

Posted
Posted
37 minutes ago, sonoranfans said:

by the way dont buy on amazon, they rip you for $21 for 5 lb.  tht is $4/lb.  Here it is for 0.80/lb.   https://www.7springsfarm.com/products/kmag-or-sulpomag-granular-0-0-22-21s-11mg-50-lb-bag?variant=39386641760461&gclid=Cj0KCQiAmeKQBhD

I had found Langbeinite or SulPoMag at a couple of other Amazon sellers, the best at the moment was a KMS 50lb bag for $80 free shipping = $1.60/lb.  The 7 Springs Farm wants $29 shipping to my place in FL, which makes it $68 for 50lb or $1.36/lb.  That's a pretty good deal!

  • Like 2
  • 4 months later...
D. Morrowii Grand Master

D. Morrowii

Posted
Posted

Just chiming in here. I ran out of Sul-Po-Mag last month so I’ve been trying to zero in on a new source and found this thread.
It looks like you can still get it on Amazon for $80 as @Merlyn found. However if you're willing to get 2 bags =100 lbs. I just checked out of 7 Springs Farm for $130.00 shipped to Florida. 
So about $1.30 per lb. Thanks @sonoranfans for the link!
 

Does anyone know who carries this stuff in Central Florida? 

  • Like 2
Johnny Palmseed Mentor

Johnny Palmseed

Posted
Posted
21 hours ago, D. Morrowii said:

Just chiming in here. I ran out of Sul-Po-Mag last month so I’ve been trying to zero in on a new source and found this thread.
It looks like you can still get it on Amazon for $80 as @Merlyn found. However if you're willing to get 2 bags =100 lbs. I just checked out of 7 Springs Farm for $130.00 shipped to Florida. 
So about $1.30 per lb. Thanks @sonoranfans for the link!
 

Does anyone know who carries this stuff in Central Florida? 

I have gotten it in the past at Site One which used to be John Deere Landscape which used to be Lesco. They are in Rockledge.

  • Like 1
sonoranfans Grand Master

sonoranfans

Posted
Posted

I just ordered some yesterday from 7 springs farm. it arrives tomorrow $69 for a 50lb bag including shipping.

  • Like 2

Formerly in Gilbert AZ, zone 9a/9b. Now in Palmetto, Florida Zone 9b/10a??

 

Tom Blank

D. Morrowii Grand Master

D. Morrowii

Posted
Posted
11 hours ago, Johnny Palmseed said:

I have gotten it in the past at Site One which used to be John Deere Landscape which used to be Lesco. They are in Rockledge.

I haven't been there yet I’ll have to check it out. Thanks

edbrown_III Grand Master

edbrown_III

Posted
Posted

I get a 50 pound bag of Potash fertilizer ----$27 now (was about 15 not that long ago)  and a 50 lb bag of Magnesium sulfate ( around $20 )--- weight ratio is about 3 K to 1 Mg --- or about 2.2 to 1 by volume --- I spread this around the palms  that show th e   pottasium (K) deficiency yellowing ---- dont  trim any bad leafs ---  any leaves or stuff ye burn put that around the palms (it is pottash )

 

Its noit a quick fix but it will eventually assuage the problem

 

  • 1 year later...
Moose Grand Master

Moose

Posted
Posted

I'm going to make the switch. Expensive but works out cheaper because it stays available in the rhizome sphere.

  • Like 2

Coral Gables, FL 8 miles North of Fairchild USDA Zone 10B

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