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Green Dreams
07-24-2004, 01:56 PM
When doing liquid lawn apps, what do y'all use for iron? I have always used ferrous sulfate powder from Lesco. It is cheep cheep and works well. I hate the dust and mess though. What do you use?

Drew

Avery
07-24-2004, 06:18 PM
Ferromec AC. Cheap and works well.

Green Dreams
07-24-2004, 07:42 PM
How much is 2 1/2 gallon jug? And what rate are you using it at? Is this just iron? Or does it have N-P-K as well? Thanks

BryPaulD
07-24-2004, 11:29 PM
Originally posted by Green Dreams
How much is 2 1/2 gallon jug? And what rate are you using it at? Is this just iron? Or does it have N-P-K as well? Thanks

I use ferromec ac as well. I paid about $30.00 for 2 1/2 gallon jug. About 8 ounces per 1000 ft.

Avery
07-25-2004, 01:08 AM
Appx. same rate and price here.

Green Dreams
07-25-2004, 01:44 PM
So you just run that straight with water? No added urea or surfactcants? Sorry for the 20 questions...

Enviro Green
07-25-2004, 02:27 PM
I have been using Long Green and Lawn Plex from Rootz this spring, bu thten I changed to Ferromec, but they only suggested a 3 to 4 oucne rate. You are using 8 oz per K of Ferromec?

EG

BryPaulD
07-25-2004, 02:34 PM
yes, straight with water. And Yes, I've been using 8 ounces to 1000 sq. ft.

BryPaulD
07-25-2004, 02:47 PM
forgot to mention, the directions for rate depends on the type of grass you are applying it to.

Hamons
07-25-2004, 04:39 PM
Depends ont he situation.

If there is a strong wind I might use a 4 iron but normally I just use the trusty 7.

Ric
07-25-2004, 06:36 PM
Try adding some 21-0-0 at about 0.10 lb Nitrogen per thousand. I think you will like the reponse.

Enviro Green
07-25-2004, 08:03 PM
21-0-0?

I used a 28-0-0 at .25 lbs N per K with the iron and did not notice much change until I bumped the rate to about .35 to.45 lbs N per K, of course this is on coll season turf, fescue.

also used lawn plex at 3-4 ounces per k.

Thanks!

EG

Green Dreams
07-25-2004, 08:22 PM
This is St Agustine grass we're talking about. I have always been of the opinion that your iron works best with .5 of N per 1,000...

Ric
07-25-2004, 10:11 PM
"Derived From" Are two important words on a bag of fertilizer. Look to see what follows those two words. 21-0-0 AS and 28-0-0 UAN are no where near the same in response or residual. We are taking best ways to make the Iron respond. There are many forms of Nitrogen 82-0-0 is Anhydrous Ammonia while 15.5-0-0 is Calcium Nitrate. The air we breathe is 78% nitrogen.

heritage
07-25-2004, 11:01 PM
Ric,
21-0-0 Ammonium Sulfate always gives amazing green results because it is available to the grass immediately and the sulfur is available quickly as well. Urea based fertilizers need to be converted to nitrates through the mineralization process and that takes 1-2 weeks. In your experience what is the highest rate in lbs per 1000 in a liquid app. of 21-0-0 have you applied without foliar burn in under 80 degree temps?

Thanks,
Pete D.

Ric
07-26-2004, 11:04 AM
Originally posted by heritage
Ric,
21-0-0 Ammonium Sulfate always gives amazing green results because it is available to the grass immediately and the sulfur is available quickly as well. Urea based fertilizers need to be converted to nitrates through the mineralization process and that takes 1-2 weeks. In your experience what is the highest rate in lbs per 1000 in a liquid app. of 21-0-0 have you applied without foliar burn in under 80 degree temps?

Thanks,
Pete D.

Pete

I enjoy reading your posts and have learned from you. Thanks. I have found that depending on rain and time of the year 0.5 Lbs of N per K of 21-0-0 is all that is needed to get a great response on St Augustine. At that rate I have seen tip burn that can be mowed off very easily. My soil is sandy so any more 21-0-0 would only leach out. In fact 0.5 is not totally used and leaches out. Your soil is different I am sure. I am not going into soil and CEC right now because I know you know.

BTW 21-0-0 was studied by the U of Fla. and found to give the strongest color of any of the N's. Timsturf gave me a link to a company that has a slow release 21-0-0 however I can not buy it here.

Green Dreams
07-26-2004, 05:38 PM
The math always gets me...

So Ric, how many pounds of 21-0-0 do you add per 1k? And is there a sprayable AS or is just granules that you disolve yourself?\
Thanks

heritage
07-26-2004, 11:42 PM
Ric,
Thanks for your reply and I enjoy reading your posts as well.

Green Dreams, Each pound of AS 21-0-0 has 21% actual nitrogen in it. If you wanted to apply 1/2 of a pound of actual nitrogen per 1000 Sq.Ft. you would need 2.4 pounds of AS 21-0-0 for each 1000 Sq.Ft. Remember that 21-0-0 AS is an Acidifying Fertilizer and will lower soil P.H.

Ric, What is the Min. amount of water that you would apply 1/2 Lb. N per 1000 Sq.Ft. using AS 21-0-0 ?

Thanks,
Pete D.

Ric
07-26-2004, 11:56 PM
Originally posted by Green Dreams
The math always gets me...

So Ric, how many pounds of 21-0-0 do you add per 1k? And is there a sprayable AS or is just granules that you disolve yourself?\
Thanks


Green Dreams

Sorry I am not going to nice about this. I hate replying to threads on Fertilizer because I always get ask to teach a class on Fertilizer chemistry and 8rd grade math. I will however go thur the drill for the 200th time.

The Numbers on a Fertilizer label are the Percentage of the element in that package. Some of the elements are listed as compounds. How ever Nitrogen is listed as the actual element of Nitrogen. 21-0-0 means it has 21% of the weight of that bag is pure nitrogen. Therefore a 100 lb bag of 21-0-0 is 21 pounds of actual Nitrogen. 50 pound bag is 10.5 pounds of Nitrogen. and 4.76 pounds of 21-0-0 is one pound of nitrogen. Or 100/21 = 4.76

21-0-0 is a soluble granule that turns very cold as it reacts with the water. It is also used in medical first aid kits as an instant Ice Pack.

I really feel you have no business applying chemical if you can't do the math. Calibration is nothing but math. Now other have said I have no business posting because I am not the best at grammar of a language That was not my first language even though I was born in this country.

Ric
07-27-2004, 12:06 AM
Originally posted by heritage
Ric,
Thanks for your reply and I enjoy reading your posts as well.

Green Dreams, Each pound of AS 21-0-0 has 21% actual nitrogen in it. If you wanted to apply 1/2 of a pound of actual nitrogen per 1000 Sq.Ft. you would need 2.4 pounds of AS 21-0-0 for each 1000 Sq.Ft. Remember that 21-0-0 AS is an Acidifying Fertilizer and will lower soil P.H.

Ric, What is the Min. amount of water that you would apply 1/2 Lb. N per 1000 Sq.Ft. using AS 21-0-0 ?

Thanks,
Pete D.

Pete

I apply every thing except herbicides at 5 gallon of finished spray per K. But remember warm season turf has more thatch. Many in my area use 3 gallon per K. Remember 21-0-0 is the standard for the salt index and is listed as 100 value. All other fertilizer's salt index or burn potential is bases on 21-0-0. True foliar fert is applied at 35 gallons per acre and any thing more is actually fertigation. I am lazy and 21-0-0 is easier to type one finger.

BryPaulD
07-27-2004, 08:03 AM
I mixed my ferromec ac @ 1 cup ferromec and the rest water, in a five gallon bucket. 3 buckets over 3000 feet. Is that to diluted? Thank you :)

Green Dreams
07-27-2004, 09:51 AM
Slam! LOl....you are right about the math. I is smart is some things, but not some other things. I can figure it out, but I always like someone else to concur that my math is correct...thanks

DUSTYCEDAR
07-27-2004, 10:03 AM
5+4-3+2+6+9+8-9-2+5+8+5+5448+-58>545-56454+55=?
is that about right

Enviro Green
07-27-2004, 06:48 PM
Ric,

What is your supplier for 21-0-0 AS, if I may ask?

Thanks!

EG

Ric
07-27-2004, 10:46 PM
Originally posted by Enviro Green
Ric,

What is your supplier for 21-0-0 AS, if I may ask?

Thanks!

EG

Enviro Green

21-0-0 I think is available just about any where they sell Fertilizer to Professional Applicators. 17 pounds of 21-0-0 per 100 gallons is a normal surfactant mix for systemic pesticides applications. Therefore many manufacture bag it in 51 pound bags. 21-0-0 is actually considered a commodity and I buy it where every I get the best price. I think Lesco sells it, but their prices are not competitive enough for me.

There are other forms of Nitrogen that I buy and must sign my life away because of Oklahoma.

BTW try 21-0-0 in your Roundup tank and watch how much faster it works.

BryPaulD
07-27-2004, 11:26 PM
Interesting?? (http://www.epinions.com/hmgd-review-64A5-117D8CC4-39C6D49F-prod3)

Enviro Green
07-28-2004, 12:11 AM
Ric,

Years ago I used to spread fertilizer and chemicals for a large agricultural cooperative. We got into the habbit of mixing in some 30-0-0 or 28-0-0, mind you UAN, with the Roundup during burndowns for no till planting,

I hear what you are saying!

THanks!

EG

Ric
07-28-2004, 07:45 AM
Originally posted by Enviro Green
Ric,

Years ago I used to spread fertilizer and chemicals for a large agricultural cooperative. We got into the habbit of mixing in some 30-0-0 or 28-0-0, mind you UAN, with the Roundup during burndowns for no till planting,

I hear what you are saying!

THanks!

EG

Enviro Green

Any of the Nitrogens will help up take. However Nitrate forms are the fastest. 28-0-0 is often used because of quick mixing ability of that solution.