Re: Fwd: Nitrogen application rates

Ah David, it's a mess you are!

---------- Original Message ----------------------------------
From: David Franzman <dfranzma@pacbell.net>
Reply-To: gardenchat@hort.net
Date:  Mon, 17 Feb 2003 19:28:59 -0800

>Oh man, I love Blue Grass.  I just got an Alison Kraus cd.  She's quite
>talented.
>
>DF
>
>Bonnie & Bill Morgan wrote:
>
>> Andrea, mine is mostly blue grass with some perennial rye in the shadier
>> areas.  Thanks for checking it for me!
>>
>> Blessings,
>>
>> Bonnie
>>
>> -----Original Message-----
>> From: owner-gardenchat@hort.net [o*@hort.net] On Behalf
>> Of Andrea H
>> Sent: Monday, February 17, 2003 10:33 AM
>> To: gardenchat@hort.net
>> Subject: Re: [CHAT] Fwd: Nitrogen application rates
>>
>> let me know what kind of lawn you have and I can look it up in my trusty
>> 'turf management" book.
>>
>> Andrea H
>> Beaufort, SC
>> Zone 8b
>>
>> ----- Original Message -----
>> From: "Bonnie & Bill Morgan" <wmorgan972@ameritech.net>
>> To: <gardenchat@hort.net>
>> Sent: Sunday, February 16, 2003 9:29 PM
>> Subject: RE: [CHAT] Fwd: Nitrogen application rates
>>
>> > Great info, Cathy!  I imagine that applies to what we put on our lawns
>> after
>> > a fashion, too.
>> >
>> > Blessings,
>> >
>> > Bonnie
>> >
>> > -----Original Message-----
>> > From: owner-gardenchat@hort.net [o*@hort.net] On
>> Behalf
>> > Of cathy carpenter
>> > Sent: Sunday, February 16, 2003 3:35 PM
>> > To: gardenchat@hort.net
>> > Subject: [CHAT] Fwd: Nitrogen application rates
>> >
>> > Thought there might be some interest in this information on Nitrogen
>> > application rates from our extension ag educator. It is intended for
>> > farmers, but contains food for thought for us all.
>> > Cathy
>> >
>> > Begin forwarded message:
>> >
>> > > From: Mike Roegge <roeggem@uiuc.edu>
>> > > Date: Fri Feb 07, 2003  01:47:14 PM US/Central
>> > > To: roeggem@uiuc.edu
>> > > Subject: Nitrogen application rates
>> > >
>> > > Weekly Crop Update                  2-7-03
>> > > By Mike Roegge, University of Illinois Extension, Adams/Brown Unit
>> > >
>> > >     Our featured speaker at the recently held No Till Seminar, Dr. Fred
>> > > Below, presented his research on nitrogen rates. He looked at N rates
>> > > over a three-year period in a variety of cropping situations: no till,
>> > > conventional, C-SB and C-C rotations, on producersm fields and on
>> > > research farms. His objective was to determine the optimal rate of
>> > > nitrogen for plant yield. Not necessarily the economic rate, but the
>> > > rate at which, biologically, the plant quit responding.
>> > >     With over 40 site years of data, his findings were that in no
>> > > circumstances, did the corn crop require any more than 1.2 pounds of N
>> > > per bushel of yield. For many years, this has been the U of I
>> > > recommendation. And it hasnmt changed.
>> > > Actually, the average requirement was 0.9 pounds of N per bushel of
>> > > yield. The same need was found regardless of environment grown (tilled,
>> > > preceding crop, etc.). Interestingly enough, when plotted against
>> > > yield, those fields that yielded the lowest required the highest amount
>> > > of N (per bushel). The higher the productivity of the soil, the lower
>> > > the amount of N needed per bushel of grain.
>> > >     If nothing else, this work proved again, that 1.2 pounds of N per
>> > > bushel of corn is all that is necessary. There is already some lfluffn
>> > > built into this recommendation, so making applications of higher rates
>> > > of N only costs additional dollars and risks higher N losses.
>> > > Of course, make sure when you account for the 1.2 pounds, you include
>> > > incidental N (starter, DAP, 28%, etc.) and also take the soybean N
>> > > credit if that was your prior crop.
>> > >     We still have approximately 50% of the corn acres to receive
>> > > nitrogen this spring. Many producers still use rates higher than
>> > > recommended as insurance against the year when crop yields go through
>> > > the roof. They donmt want to get caught short. However, based upon this
>> > > research, and on other N research conducted by the U of I, there is no
>> > > need to lfluffn your N rate. Data from Dr. Bob Hoeft over an 18 year
>> > > time period found similar results. He found that by increasing N rate
>> > > by 30-40 pounds per acre over the 1.2 pounds actually led to decreased
>> > > net income.
>> > >
>> > >
>> > >
>> > > Mike Roegge             University of Illinois Extension
>> > > 330 S. 36th Street          Adams/Brown Unit
>> > > Quincy, IL 62301            r*@uiuc.edu
>> > > Phone: 217-223-8380         FAX: 217-223-9368
>> >
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--
Pam Evans
Kemp TX/zone 8A



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