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Implement Alley Discussion Forum

Liquid Fertilizer

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Steve450

06-20-2004 17:56:07




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Getting about time to give the corn a little "N" kick and was wondering about the use of liquid. I was thinking about rigging up some drop tubes on our little sprayer and applying it that way. In the past we have just broadcast Urea, but have had some leaf burn with that. What do you all think?? We only have 8 acers to do.




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acorange

06-21-2004 07:07:46




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 Re: Liquid Fertilizer in reply to Steve450 , 06-20-2004 17:56:07  
I would use the 28% liquid. We use it often here in IA. as a side dress. It is also a LOT better
for the earthworms and soil bacteria. Anhydrous,urea and other dry fertilizers are cheaper but over time they make the ground "hard".
My 2 cents....



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kyhayman

06-20-2004 19:28:55




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 Re: Liquid Fertilizer in reply to Steve450 , 06-20-2004 17:56:07  
Leaf burn doesnt hurt anything. I personally like ammonium nitrate over urea for broadcast. Unless it is one of the blue ureas (inhibited) research shows losses of ammonia volatilization of up to 30%. As far as liquids go, there are a lot of competing claims (made by the folks that make the liquids) for foliar feeding but the only solid research shows ground application. At a soil applied rate of 28% UAN liquid to apply 30# of actual N you would need just a little over a 100# of UAN per acre or somewhere along the line of 12 gallons. Cost based on the last I priced at $10.00 per 2.5 gallons would be $50 per acre verses $14.50 an acre for ammonium nitrate. It's you money :-).

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Hugh MacKay

06-21-2004 06:46:27




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 Re: Re: Liquid Fertilizer in reply to kyhayman, 06-20-2004 19:28:55  
kyhayman: I haven't bought any fertilizers in volume for close to 15 years. However I find myself forced to question your dollar values based on just what I see happening. 28% solution is becomming more popular around here each year, and it's not A/N or Urea they are subsituting for but rather Anhydrous. I'm talking about growers in the 1,000 to 5,000 acre range. These guys just have too sharp of pencils to ignor.

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kyhayman

06-22-2004 06:00:13




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 Re: Re: Re: Liquid Fertilizer in reply to Hugh MacKay, 06-21-2004 06:46:27  
I'm sure that it is cheaper in volume. The price I quoted is for a 2.5 gallon container (only way it comes here). If you are treating that many acres bulk tanks would apply. Here, there is no anhydrous (and so many rocks you couldnt knife it in anyway). Urea is not stocked by most vendors as a manufactoring contaminant (biuret) is highly toxic to tobacco. Ammonium nitrate is the local N source of choice.

I probably erred not in the UAN price but in quoting a bulk price for ANN verses a bagged price.

A lot of the move to UAN (urea/ammonium nitrate solution) over anhydrous is theft and liability. Anhydrous in in high demand to make crystal methylamphetamine. Friend of mine a few hundred miles west where they can get it has had over a dozen break ins and his insurance carrier told him that if he kept using anhydrous they were going to raise his premium 500%. He switched to urea for his incorporated N and ammonium nitrate for his top dressing. I just saw that CBS is featuring thefts of 84-0-0 on tonights news.

Shipping has also influenced pricing. With the astronomical run up in N prices and the steep decline in the dollar some bizzare situations have developed. Anhydrous is generally not imported, ammonium nitrate was coming from Spain and Ukraine (where the high dollar is hurting) plus the color is not right. Bulk stocks of Urea and Ammonium nitrate can be blended into UAN solution (the reaction forms a liquid) cheaper than dealing with the inventory loss from hydrolysis if they sell it in bulk.

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Hugh MacKay

06-22-2004 06:19:09




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 Re: Re: Re: Re: Liquid Fertilizer in reply to kyhayman, 06-22-2004 06:00:13  
kyhayman: Thank for that responce. As you and also Steve mentioned, theft being a real problem, with regards to fertilizer materials for variuos reasons. Amhydrous going to the drug trade and A/N going for explosives, and lord knows what else. During the most of my farming career you could leave just about any farm inputs right in the field, could sit there for days and no one would touch it. Now a days, not only would you loose it, you are also liable. It's kind of turned farming into a thankless ocupation.

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txblu

06-21-2004 05:55:23




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 Re: Re: Liquid Fertilizer in reply to kyhayman, 06-20-2004 19:28:55  
Hayman,

Do you have stats on Am Ni over fresh cut sudan as far as evaporation vs absorption. At planting I usually like to disc over the fert prior to planting but a top dress doesn't allow that.

Thanks,

Mark



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kyhayman

06-21-2004 20:28:34




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 Re: Re: Re: Liquid Fertilizer in reply to txblu, 06-21-2004 05:55:23  
Shouldnt matter what the crop is, 34-0-0 is strongly hygroscopic. It will pull in any available water (secod only to anhydrous ammonia among the fertilizers (source "Enriching the Earth, the Story of Synthetic Ammonia") to immediately become plant available N as nitrate (NO3-) and (NH4+) which becomes (directlyly) plant available nitrate over 28 days with no conversion to gassesous ammonia (NH3). Works with everything but rice. Urea, because it is not naturally a plant available nitrogen which first must be converted to ammonium NH4+ by soil microbial

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Steve450

06-21-2004 05:15:48




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 Re: Re: Liquid Fertilizer in reply to kyhayman, 06-20-2004 19:28:55  
Thanks for all the replies. If the cost for liquid is that much more, I think I'll try the ammonium nitrate.



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Steve450

06-21-2004 05:58:45




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 Re: Re: Re: Liquid Fertilizer in reply to Steve450, 06-21-2004 05:15:48  
Just called the fertilizer dealer and asked about
ammonium nitrate and by the way he was talking, I could darn near be arrested for calling and asking about it. He wanted my name and phone number right off the bat. It seems that since 9/11, you can't even buy it. I should have known that as I work in a stone Quarry and we use the same stuff to blast rock. I was going to say that my name was Osama, but I don't think he would have found much humor in that.

He recomended a mixture of ammonium sulfate and urea. He said that would give 31% total N. I think I'll stick with urea and get the 46% N at less cost.

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kyhayman

06-21-2004 20:22:17




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 Re: Re: Re: Re: Liquid Fertilizer in reply to Steve450, 06-21-2004 05:58:45  
Must be a state thing, I read off last weeks AP wire that 2 states do regulate ammonium nitrate. Here, it is the only option at most vendors, it is unregulated except for DOT (limited to 4 ton load lots). It better not be off the market :-), I bought 30 tons January 2 and still have 4 tons left at the co-op. Saturday he told me he still that 500,000# of it and 750,000# of muriate of potash, been too wet here to move it.

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farmerjohn

06-20-2004 18:55:28




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 Re: Liquid Fertilizer in reply to Steve450 , 06-20-2004 17:56:07  
You have to inject it into the ground or it will be lost to the atmosphere.



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thurlow

06-20-2004 20:26:21




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 Re: Re: Liquid Fertilizer in reply to farmerjohn, 06-20-2004 18:55:28  
Not.....we're talking liquid, not anhydrous..... .



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jc

06-21-2004 14:20:32




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 Re: Re: Re: Liquid Fertilizer in reply to thurlow, 06-20-2004 20:26:21  
I too am reffering to liquid nitrogen. Otherwise known as UAN which stands for Urea Ammonia Nitrate. The two products are mixed and therefor form the liquid. Then water is added to bring the solution to the desired percentage (28%, 30%, 32%). The urease inhibitor for this product is known as Agrotain.



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jc

06-20-2004 19:12:32




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 Re: Re: Liquid Fertilizer in reply to farmerjohn, 06-20-2004 18:55:28  
Not if you use a urease inhibitor.



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