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Implement Alley Discussion Forum

36 TO 30 CORN ROWS

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BILL

07-21-2003 10:48:45




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What is the advantage of 30" rows over 36" rows? Is the conversion justifiable?




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Hugh MacKay

07-23-2003 13:50:59




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 Re: 36 TO 30 CORN ROWS in reply to BILL, 07-21-2003 10:48:45  
Bill: Interesting discussiom you have going here, after my close to 61 years I thought change was all about your friendly equipment company making more money. I guess I've missed something in life.



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Bill

07-23-2003 20:29:07




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 Re: Re: 36 TO 30 CORN ROWS in reply to Hugh MacKay, 07-23-2003 13:50:59  
Well you know just wondring almost everybody around here is on 30" There has to be a reason being on 36 don't know how much more yeild. Or maybe it's just 30" heads that are made? Kinda like finding a new narrow front tractor?



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Bill

07-23-2003 20:23:20




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 Re: Re: 36 TO 30 CORN ROWS in reply to Hugh MacKay, 07-23-2003 13:50:59  
Well you know just wondring almost everybody around here is on 30" There has to be a reason being on 36 don't know how much more yeild. Or maybe it's just 30" heads that are made? Kinda like finding a new narrow front tractor?



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Joe

07-22-2003 03:56:53




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 Re: 36 TO 30 CORN ROWS in reply to BILL, 07-21-2003 10:48:45  
Who's talking about 20" rows?



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paul

07-22-2003 21:57:03




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 Re: Re: 36 TO 30 CORN ROWS in reply to Joe , 07-22-2003 03:56:53  
20" corn rows, or even 15", are becoming more common here in the midwest. Narrow row equipment is very expensive, but it offers a tiny increase in yield & a decrease in weed pressure, so the large operations can make it pay.

Some folks still like 30" beans, but most have dropped down to 15" or solid drilled b now.

--->Paul



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Barbell

07-21-2003 20:39:20




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 Re: 36 TO 30 CORN ROWS in reply to BILL, 07-21-2003 10:48:45  
Farmed in western MO from early 1960s to 1991. We went from 40 inch (the width of a horse's rear) to 36 to 30 inch rows. Reasons? Increase plant population with the same plant spacing in the row, quicker canopy over middles cut weed competition and moisture loss, better use of broadcast fertilizer. Down side is cost of equipment. Went from four row to six to eight row planter and cultivator and from two to three to eight row corn head. Need lots of acres to run the equipment over to justify cost. Of course, I have been out of it for 12 years; thats just as I recall it.

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Brent in Iowa

07-21-2003 15:39:15




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 Re: 36 TO 30 CORN ROWS in reply to BILL, 07-21-2003 10:48:45  
Where are you located? Here in the midwestern corn belt the big thing is going down to 22 or even 20 inch rows for corn. Move the plants to a more equidistant spacing, creates a quicker canopy which prevents light from hitting weeds, being wasted on heating the soil which evaporates the moisture quicker, and other factors. The biggest problem (expense too, other than a new planter) going from 30 to 20" is putting skinny tires on the tractors, but going from 38 or 36 to 30 shouldn't be a problem.

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kyhayman

07-21-2003 13:57:35




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 Re: 36 TO 30 CORN ROWS in reply to BILL, 07-21-2003 10:48:45  
If you are raising 3 or 4 acres or less I wouldn't bother changing the planter. When I was growing corn (mid '80s to '98) I switched from 38" conventional to 30" notill. Saw a definite yield increase with the narrow rows. With notill the faster canopy closure helps with weeds. By keeping the same seed spacing with the narrow rows you can increase seed per acre which (if you also increase fertilizer) increases yield per acre.

I finally decided to let the folks up north have the corn, I can buy theirs cheaper than I can grow it. As far as silage, I went with wrapped round bales, even sold my chopper. It cut costs, and I was able to eliminate having $$$ tied up in a planter, picker, chopper, blower, gravity wagons, and silage wagons. Used the capital that freed up to get a newer round baler.

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TP from Central PA

07-21-2003 12:18:18




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 Re: 36 TO 30 CORN ROWS in reply to BILL, 07-21-2003 10:48:45  
I know here the conversion isn't worth it..... ..We bought a planter set up for 4-30" rows and swapped it out to 4-38..... .....The wider rows seem to have more moisture to work with in a drier year..... .We also cultivate so we don't have to have the tires real narrow on our tractors.



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Joe

07-22-2003 03:57:53




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 Re: Re: 36 TO 30 CORN ROWS in reply to TP from Central PA, 07-21-2003 12:18:18  
Narrow tires aren't needed for 30" rows.



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TP from Central PA

07-22-2003 05:23:14




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 Re: Re: Re: 36 TO 30 CORN ROWS in reply to Joe, 07-22-2003 03:57:53  
No, the tires don't have to be narrow..... .....They have to be narrowed up on the tractor..... ...Which ain't to good on our hill sides.



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paul

07-23-2003 11:39:10




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 Re: Re: Re: Re: 36 TO 30 CORN ROWS in reply to TP from Central PA, 07-22-2003 05:23:14  
I know what you are talking about - I plant corn in 38" rows, beans in 15" rows with skip rows that come out to 30".... And cultivate too. Got the corn tractor, & the bean tractor! :) :)

--->Paul



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greenbeanman

07-21-2003 11:36:48




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 Re: 36 TO 30 CORN ROWS in reply to BILL, 07-21-2003 10:48:45  
Thirty inch rows provide better initial shading since they are closer together.

Also the plant spacing within the row is further apart to establish the same population per acre.

A thirty inch row is the pits for trying to put mineral oil on the silks of sweet corn. A thirty six is much easier to navigate down.



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Alvin NE WI

07-21-2003 17:34:30




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 Re: Re: 36 TO 30 CORN ROWS in reply to greenbeanman, 07-21-2003 11:36:48  
Another new wrinkle--What is the mineral oil for?
Alvin



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Stan

07-21-2003 18:03:40




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 Re: Re: Re: 36 TO 30 CORN ROWS in reply to Alvin NE WI, 07-21-2003 17:34:30  
The oil is a non poison method of controlling insects.



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