RE: Fwd: Nitrogen application rates
- To: g*@hort.net
- Subject: RE: [CHAT] Fwd: Nitrogen application rates
- From: "Pamela J. Evans" g*@gbronline.com
- Date: Mon, 17 Feb 2003 20:39:36 -0600
Lawn is just the space between flower beds. Mine is 50% various weeds. I
don't water it or fertilize it and it won't die. If it ever does, it's
all getting replaced w/ buffalograss - a native. Pat waters her lawn all
the time and it looks the same as mine - it makes her crazy. I have so
many flower beds, it obviously gets enough runoff to keep it alive. I
figured the lawn would croak during that bad drought we had a few years
ago. No such luck. It didn't even turn brown. Oh well. Someday I'll have
my buffalograss lawn and won't have to pay someone to mow.
sigh.
Pam
---------- Original Message ----------------------------------
From: "Bonnie & Bill Morgan" <wmorgan972@ameritech.net>
Reply-To: gardenchat@hort.net
Date: Mon, 17 Feb 2003 21:32:01 -0500
>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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