Non-ionic surfactant.JERSEY said:
Ferrous Ammonium Sulfate | Liquid Iron for Lawns
I've been using this solution for many years with pretty good success on my Tifway lawn. This stuff is similar to the Iron sprays you can buy but it is much cheaper to make it yourself and the products are easily available on eBay. Spraying this solution will help give your lawn a deeper darker green and will generally last a few weeks. This is what you will need.
Ferrous Sulfate(Iron)
Ammonium Sulfate
One of THESE will come in handy to mix it all together.
For every 1K of lawn you will want to mix 4oz of Ferrous Sulfate, 3.4oz of Ammonium Sulfate in 1 Gallon of water. I usually mix it in a 5 gallon bucket of HOT water as it will dissolve faster and easier than it will with cold water. In that 5 gallon bucket, I will mix everything for 8K of lawn in one shot and then dilute it in the sprayer tank.
You will want to spray this in the evening when it isn't as hot outside to reduce the chance of burning your lawn(I have never had an issue with it). You will want to leave it on your lawn for as long as you can. I usually spray it the night before my irrigation is set to go off. I have gotten into the habit of mixing this with my PGR app every 3 weeks as it seems to be perfect timing for applying the stuff.
I wouldn't worry about the 21-0-0 in the Ammonium Sulfate as you are applying such a small amount that it shouldn't have any effect on your overall Nitrogen applications. The Ammonium Sulfate is in the solution to help give it a faster and more intense green up and CAN be omitted if you choose. I have never sprayed without it so YMMV(Your Milage May Very).
The Ferrous Sulfate is the MAIN ingredient for the dark green color.
The Ammonium Sulfate basically acts as a booster for the Ferrous Sulfate and will enhance/speed up the greening process.
Ferrous Ammonium Sulfate for every 1K of Bermuda Lawn
4.0 oz of Ferrous Sulfate (0.8oz of Fe)
3.4 oz of Ammonium Sulfate
1 Gallon of Water(preferably Hot or Warm)
Ferrous Ammonium Sulfate for every 1K of Cool Season Lawn
2.0 oz of Ferrous Sulfate (0.4oz of Fe)
1.7 oz of Ammonium Sulfate
1 Gallon of Water(preferably Hot or Warm)
Avoid the iron on the leaves in summer temperatures.
Edits: add cool season rates to avoid a black lawn.
Ferrous Sulfate(Iron)
Ammonium Sulfate
One of THESE will come in handy to mix it all together.
For every 1K of lawn you will want to mix 4oz of Ferrous Sulfate, 3.4oz of Ammonium Sulfate in 1 Gallon of water. I usually mix it in a 5 gallon bucket of HOT water as it will dissolve faster and easier than it will with cold water. In that 5 gallon bucket, I will mix everything for 8K of lawn in one shot and then dilute it in the sprayer tank.
You will want to spray this in the evening when it isn't as hot outside to reduce the chance of burning your lawn(I have never had an issue with it). You will want to leave it on your lawn for as long as you can. I usually spray it the night before my irrigation is set to go off. I have gotten into the habit of mixing this with my PGR app every 3 weeks as it seems to be perfect timing for applying the stuff.
I wouldn't worry about the 21-0-0 in the Ammonium Sulfate as you are applying such a small amount that it shouldn't have any effect on your overall Nitrogen applications. The Ammonium Sulfate is in the solution to help give it a faster and more intense green up and CAN be omitted if you choose. I have never sprayed without it so YMMV(Your Milage May Very).
The Ferrous Sulfate is the MAIN ingredient for the dark green color.
The Ammonium Sulfate basically acts as a booster for the Ferrous Sulfate and will enhance/speed up the greening process.
Ferrous Ammonium Sulfate for every 1K of Bermuda Lawn
4.0 oz of Ferrous Sulfate (0.8oz of Fe)
3.4 oz of Ammonium Sulfate
1 Gallon of Water(preferably Hot or Warm)
Ferrous Ammonium Sulfate for every 1K of Cool Season Lawn
2.0 oz of Ferrous Sulfate (0.4oz of Fe)
1.7 oz of Ammonium Sulfate
1 Gallon of Water(preferably Hot or Warm)
Avoid the iron on the leaves in summer temperatures.
Edits: add cool season rates to avoid a black lawn.
861 - 876 of 876 Posts
Aha. Ok.
Can we use a little dish soap?
Can we use a little dish soap?
Sure. Just avoid antibacterial forms.
OKTYcorneliani said:Non-ionic surfactant.JERSEY said:what is NIS?
Where are you guys sourcing your citric acid?
I found a 50lb bag of the stuff for pretty cheap at a supply store that serves the food industry. Way more than I'll ever need but it was still a good price.td_05 said:Where are you guys sourcing your citric acid?
https://www.amazon.com/dp/B00EYFKNL8?psc=1&ref=ppx_yo2ov_dt_b_product_detailstd_05 said:Where are you guys sourcing your citric acid?
I mixed FAS and AMS yesterday and sprayed half of it. The other half is still in the sprayer. Can i still usethis or is it dead now that its been sitting for a full day.
Also, can i apply this in the morning?
Also, can i apply this in the morning?
Mornings or evenings would be preferred. The mixture should be good for a bit. Not exactly sure how long though.
I sprayed the other evening in Ontario at a rate of 3oz Ferrous Sulfate and 2.3oz AMS with 2tsp citric acid per 1000sq' and I noticed it dark in some areas but not others and also with 5 Gal water for 2700 sq ft lawn. I saw some guys are also adding Iron to their solutions just wondering what mixing rates guys use for cool season lawns?
What do you mean “ adding Iron to their solutions” … ferrous Sulfate is exactly that, albeit raw & unchelated. Sometimes I’ll throw in a micronutrient fert into the mix, for good measure, but 2-4oz of 20% Ferrous Sulfate is about where you’d want to stay. Any more and you run the risk of staining the grass blades, and with 8oz/1000 I’ve managed to kill my seedlings.I sprayed the other evening in Ontario at a rate of 3oz Ferrous Sulfate and 2.3oz AMS with 2tsp citric acid per 1000sq' and I noticed it dark in some areas but not others and also with 5 Gal water for 2700 sq ft lawn. I saw some guys are also adding Iron to their solutions just wondering what mixing rates guys use for cool season lawns?
The difference in color can be either your coverage (which I doubt at 2gal/1000) or the different varieties in your seed mix reacting different to the FAS. You can try a chelated iron source as tht can sometimes help with foliar uptake some.
So does the solution actually turn it into iron for the benefits of iron? Asking because I purchased iron 6% to apply foliar so wondering if I should just use that instead of FAS. I only did an app of fas because I wasn’t happy with the green darkness that lacked to come out from the iron but I did apply it at 2oz per 1000 instead of the 4oz per 1000
I don't think I understand your question. Frankly I think you're missing the point that FAS is essentially the same thing as a liquid iron that comes pre-mixed off the shelf. They do the same exact thing we do, in different ratios: take some powdered iron source (ie ferrous sulfate) and mix it with water. Bottle it, slap an appropriate label on it, and voila! Liquid iron.So does the solution actually turn it into iron for the benefits of iron?
Post a picture of the 6% iron you have on hand and we'll confirm if that's the same thing. Just for kicks
No worries, we all have those moments! lolWell arnt I Just a dummy. I swear I read couple years ago all FAS does is appearance purposes but when I read about liquid iron online it had all these benefits to it. Here is the product photos though and the break down.
Looking at the label (which doesn't specify what it was derived from btw.. must be a Canada thing) but the 12%N and 4% Sulfur makes me believe they're using AMS, with Ferrous Sulfate as their Iron source. So essentially FAS using a 2:1 AMS:Fe ratio. Oh, and a little Manganese as well.
I don't want to bog this thread down with product comparisons though .. this should be a thread on its own. But happy that you're understanding what FAS is: essentially an iron foliar solution with a slight amount of nitrogen kicker.
861 - 876 of 876 Posts
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