Overshot the nitrogen on our corn field.....?????

Sparktrician · Jul 15, 2013

Ok, started side dressing our corn today. Target of 35 gallon of 28% liquid/acre.

Noticed the tank seemed to be getting empty fast.....real FAST. Called the COOP where I rented the applicator and bought the 28. After a brief conversation and playing with the setting on the pump.....it was concluded the pump came apart....

Question: By my math, about 5 acres of corn got 110 gallon/acre of liquid 28......any issues with the crop I do not see coming?

ben there · Jul 15, 2013

i wouldnt stand over any plants

jm. · Jul 15, 2013

Lots depends on how much rain. I think you will be alright unless it turns off real dry.

fixerupper · Jul 15, 2013

The orifices in the nozzles must have been pretty big for that much to go on. You lose whatever the corn doesn't use. Corn needs 1 LB of actual nitrogen per bushel of expected yield so you're good for 338 bushels per acre just from this application if everything else comes together right. That's how much nitrogen the yield competition guys use. I assume it's shot in a slot behind a coulter or knife so it's between the rows and 15" away from the plants if you're on 30" rows. Last year I did the same thing only I plugged the wrong valve calibration numbers in the monitor. I figured about 80 gallons per acre of 28 went on in ten acres. We were terrible dry after that so I didn't see any difference in the corn. Jim

moresmoke · Jul 15, 2013

Just call it a test plot if anyone questions. Unfortunate, but stuff happens.

donjr · Jul 15, 2013

Follow it with wheat and no starter. Sounds like you'll have enough.....

JD Seller · Jul 16, 2013

Lets do the math:

28% weights 10.8 LBS per gallon

110 x 10.8 x .28 = 332.64 LBS or units of nitrogen per acre.

If you get a good rain it should not hurt the corn and it will take off in growth. The yield will not be that much greater than the corn that get the correct rate.

You are at the point of a diminishing return on the nitrogen.

Sparktrician · Jul 16, 2013

We have been getting regular rain around here. The corn was planted on June 7th. Was a real wet spring for us. Guess we will see what happens. The COOP is supposed to come dribble the rest on tomorrow afternoon. The corn needs the N, it has used the starter fert. up.

We will likely follow this with Rye this fall. The field that got over applicated is silage corn.

Dr. Walt · Jul 16, 2013

Sounds like you might just get corn stalks the diameter of watermelons. LOL

JD Seller · Jul 17, 2013

(quoted from post at 13:53:39 07/16/13) We have been getting regular rain around here. The corn was planted on June 7th. Was a real wet spring for us. Guess we will see what happens. The COOP is supposed to come dribble the rest on tomorrow afternoon. The corn needs the N, it has used the starter fert. up.

We will likely follow this with Rye this fall. The field that got over applicated is silage corn.

Do a nitrate tissue test BEFORE you chop that corn this fall. You may have to do some switching around if it is high in nitrates. The high nitrates will cause you troubles in the cattle you fed the silage too.

Overshot the nitrogen on our corn field.....?????

Sparktrician

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ben there

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jm.

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fixerupper

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moresmoke

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donjr

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JD Seller

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Sparktrician

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Dr. Walt

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JD Seller

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