[farmshop]

Hey guys. We have a older great plains 3 section 30ft drill. We struggle finding the correct settings. We follow the method on the drill by turning the wheel the correct 3 of revs and weighing the seed. When we do this in the yard we get it spot on than you go out to the field and it seeds way higher like 20 -30% higher. We put new metering wheels in this spring hoping to fix this but still not right. Any thoughts. It has done it with both oats and wheat this year

 

[litefoot]

field conditions and tire pressure can change the rate a lot. actually 20% isn't as far off as you think (overlap, point rows, etc all add up more than one would think, that is why section control is so popular on new). I can't remember if increasing tire pressure increases or decreases seeding rate, but you might try one and see if it goes the right way for you. Also, most of the drills have a rate plate on the handle that can be moved, you can move it to adjust for the difference. hope this helps and good luck.

 

[farmshop]

Thanks for the reply. We will have to play with it. This is all over plant because we we checked rates before we got to far into seeding

 

[redline73]

Do more rev's when you calibrate. I do a minumum of 15 revs, I try to simulate a 1/8 of an acre or whatever then I weigh it out.

 

[litefoot]

you might also take a tube off the drill and catch the seed coming out when you drive the correct distance in the field and see how far off you are, takes time, but if you are 20% over on beans it would pay out quick!

 

[farmshop]

our drill says 182 revs per acre. we used to try and do half acre calibrations. This year we did the full 182 revs to try and get closer.

 

[sunnyview87]

I'm curious, has anyone tried blocking every other row to get 15" drill spacings?

 

[farmshop]

Our drill was set up that way when we bought it the previous owner used it for soybeans. They make a filler to plug the meter hole. Ours even has the seed charts for various row settings

 

[sunnyview87]

Ah. We are trying 15" row beans this year. I'm interested in knowin what settings I need to get 190000seeds/acre. Got a GP1500 w/coulter caddy