Iron Sulphate as Moss Killer

[Hysteresis]

I posted a question about 10 years ago and unfortunately did not get any meaningful replies, so I will try a new posting and hope someone can advise me.
I have had some success with Moss killing with Iron Sulphate granules but that was really guess work with respect to concentration and application.

My question is, what concentration of 20% Iron Sulphate in grams/Sq Metre should be applied and is applying with a drop spreader acceptable. I understand that it is advisable to treat the whole lawn with Iron Sulphate and not just where the Moss appears to be.

 

[pidgeon1]

This is worth the money,

ICL Sportsmaster Renovator Pro 14-0-5 +6%Fe +MCPA +Mecoprop-P - Fertiliser & Weedkiller

Active Ingredients: 16.300 % w/w iron sulphate, 0.490 % w/w MCPA and 0.290 % w/w mecoprop-P

Mapp No. 16803

Renovator Pro is our best selling 'all in one' granular weed, feed and moss control product.

With a mini-granular formulation, Sportsmaster Renovator Pro enables even spreading and a rapid breakdown for an immediate and consistent response. Renovator Pro contains iron for moss control and 2 selective weedkillers, MCPA and mecoprop-P.

 

[Hysteresis]

Thanks for the advice pidgeon1, but it not what I asked, I have enough feed for 3,400 sq. Met and a 25 kg Bag of Iron Sulphate. I dont need any more fertiliser, I need a spread rate for the Iron Sulphate. Thanks anyway

 

[Harry Bloomfield]

I'm no gardener, but - What do the ICL instruction say for there product with regards to coverage? Their active ingredient makes up 16%, so the remaining 84% is just a 'filler' for more even spreading. Could you add your 25Kg (16%) to 86% of dry sand as the filler component?