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15-3-7

11K views 17 replies 8 participants last post by  timturf  
#1 ·
Bob West,

Why is the 15-3-7 product with 50% biosolids sold in a 40lb bag? If you are going to use a fertilizer containing an organic, why would you use mop?

It would cost very little more to use sop, and PLEASE make the bag weigh 50lbs.

TIM
 
#2 ·
Tim,

I checked w/ our fertilizer product manager, and here is what he told me:


The lighter density of the biosolids increases the volume of the product - which precludes it being used in a standard sized 50 # bag.

The guarantee on our biosolid raw material is 4-2-0; therefore, the formulation had to be fortified with a synthetic Potassium source to achieve the 7% needed.


I hope this answers your question - please let me know if you need anything else,
Bob
 
#3 ·
Tim,

I checked w/ our fertilizer product manager, and here is what he told me:

The lighter density of the biosolids increases the volume of the product - which precludes it being used in a standard sized 50 # bag.

The guarantee on our biosolid raw material is 4-2-0; therefore, the formulation had to be fortified with a synthetic Potassium source to achieve the 7% needed.
I hope this answers your question - please let me know if you need anything else,
Bob
I understand it needs to be fortified, BUT why not with SOP?

Other companies using a fortified biosolids fertilize are using a 50lb bag, in fact you can buy a straight bag of 100% biosolids in a 50lb/bag! (milorganite)

So, I don't think you have adequately answered either of my questions!
 
#5 ·
i always wondered why the mop and not sop.
I agree. I don't mind so much about it being in a 40# bag, but use SOP! That may make it a 15-3-6, but that's fine by me. Also increase the amount of PPSCU in it to 50% instead of 30% (or so). The 30% limits its usage in my area to a fall fertilizer only. Make these changes and I guarantee you sell at least twice as much of it.
 
#8 ·
Yes, SOP PLEASE, but don't reduce the k, in fact maybe raise it some...like 15-3 -9 to 12! Like 9 to 12% sop

A reply would be nice!
 
#11 ·
It can be done. I figured out the formula. I'll make it easy for you Lesco.

If Biosolids is 4-2-0, then a 40# bag of 15-3-7 is 20# of Bio, and 20# of 26-4-12. I tried to determine if this is a "maxed out" product (no filler) based on the raw materials. It seems to be pretty darn close.

excluding adding micros (Iron, Manganese) that are not in the Biosolids, blend the following for a 40# bag...

20# 4-2-0 (Biosolids)
6.5# 39-0-0 (PPSCU)
5.5# 46-0-0 (Urea)
1.75# 18-46-0 (Diammonium Phosphate)
6.25# 0-0-50 (Sulfate of Potash)

will yeild... 15.45 - 3.01 - 7.81 or...

15-3-8 , 50% Biosolids, 50% PPSCU, SOP. whataya think?
 
#18 ·
I also do not buy from lesco because all they use is MOP.
NOT true, you can find some fert with mop and sop for k, and if you look at gc fert, most have sop!

But yes ,Must of lesco lawncare fert has nothing but MOP