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corn growing ? #7005558
10/01/20 01:29 PM
10/01/20 01:29 PM
Joined: May 2010
Posts: 315
Onaway michigan
james dymond Offline OP
trapper
james dymond  Offline OP
trapper

Joined: May 2010
Posts: 315
Onaway michigan
I had a lot of ears that were not filled out to the end of the cob. I used triple twelve and the stalks looked good and were a dark green. I saw on the internet where they said to much vertilizer could be the reason for it. Any one know or have a opinion on this? Thanks

Re: corn growing ? [Re: james dymond] #7005563
10/01/20 01:34 PM
10/01/20 01:34 PM
Joined: Jan 2007
Posts: 2,663
S.E. Ohio
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M.Magis Offline
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M.Magis  Offline
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Joined: Jan 2007
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S.E. Ohio
Poor pollination is the reason, but the reason for that could be lots of things.

https://www.agry.purdue.edu/ext/corn/news/articles.03/TipFill-0917.html

Re: corn growing ? [Re: james dymond] #7005574
10/01/20 01:49 PM
10/01/20 01:49 PM
Joined: Dec 2006
Posts: 11,293
East-Central Wisconsin
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bblwi Offline
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bblwi  Offline
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Joined: Dec 2006
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East-Central Wisconsin
Some of the silks could have been damaged or eaten off and thus poor pollination. The fact that the cobs never filled to the end suggest that there were specific issues that had incomplete pollination at the tip ends. One of those I found out by doing yield checks on many fields was that if you have dense stands and a lot of ears which all need a lot of energy or nutrients you may not have had enough nutrients to fill every kernel. Your crop may have just run out of gas. There are many things that can cause poor nutrient transfer to the kernels. It takes 50% of all the energy the corn plant utilizes to transfer the nutrients from the stalks, roots, leaves to fill out the kernels. The plant literally starves itself to complete the seed production process.

Bryce

Re: corn growing ? [Re: james dymond] #7005666
10/01/20 04:11 PM
10/01/20 04:11 PM
Joined: Sep 2010
Posts: 6,545
NC, Orange Co.
QuietButDeadly Offline
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QuietButDeadly  Offline
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Joined: Sep 2010
Posts: 6,545
NC, Orange Co.
Lack of moisture at the right time can certainly be a factor.


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Re: corn growing ? [Re: james dymond] #7005681
10/01/20 04:38 PM
10/01/20 04:38 PM
Joined: Jul 2017
Posts: 1,790
IA
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teepee2 Offline
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teepee2  Offline
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Posts: 1,790
IA
Some varieties fill out better than others also.

Re: corn growing ? [Re: teepee2] #7005823
10/01/20 07:40 PM
10/01/20 07:40 PM
Joined: Dec 2006
Posts: 11,293
East-Central Wisconsin
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bblwi Offline
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bblwi  Offline
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Posts: 11,293
East-Central Wisconsin
I missed the part about too much fertilizer. That would be an issue if way over and if way out of balance by a lot. Extra N can get more growth but when it comes to making seed (kernels) those nutrients come from the plant itself and probably are the balance needed as genetics over time will make that happen. There are been several factors listed and the Purdue article touches on a lot of them. Another thing is we are finding that the modern corn plant is much more efficient at converting the nutrients (fertilizer) then even 20-30 years ago. The old N guidelines from the 70 to early 2000s was 1lb. of N per bushel of corn. We are seeing research plots that are showing .7lbs. or even a bit lower in ideal conditions to get a bushel of corn. So in reality in the high yielding corn areas of ILL, IA, NE etc. a 250 bushel yield can be made today with the same amount of N that produced 180-200 30 years ago. That is one way to work on a greener envirnonment.

Bryce

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