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Sidedressing corn

S

Super Steve

Member
I'd really like to side dress my corn this year with liquid fertilizer. The problem is, I plant 4 rows and don't drive the straightest and the local coop doesn't have a 4 row applicator anymore.

I'm tempted to build my own rig but not sure how to go about it. I'm thinking of taking an old pull type 200 gallon sprayer and rig up some units behind it.

I'm thinking of borrowing 2 coulters off my yetter coulter cart on my drill and attaching an injector knife to them. The sprayer I'm thinking of using has a pto pump that is driven with belts and pulleys so I could play with the pulleys to get close to the gpa I want then plumb a bypass to fine tune it.

Will this work or am I out to lunch?

If anyone has pictures of something that would really help. I cant really find any up close pictures of the units online.
 
Is this the second shot of a split application? You can dribble it and let the rain work it in. It only takes a few tenths of rain to work it in.if you have your own rig you can watch the forecast and dribble right before the rain. (Hah!) I have always knifed it in but this year I'm having it custom applied by someone who has y drops that dribble it alongside the rows. Downfall to dribbling is if it forgets to rain the n lays on top too long.
 
I have used a 8row 28% applicator behind a 4 row with no problem. All it has is a single coulter so the rows can be way off and still work.
 
I just started doing this a couple years ago. What motivated me to move to this was that I felt like I was losing too much nitrogen in the late May to mid June timeframe with the high intensity and heavy rainfall events being prevalent. We are putting on the side-dressed nitrogen in that mid-June timeframe. I do not feel my corn is running out of nitrogen like it has been in the more recent times. I have looked at buying on of these side-dressing units. There are a lot of them on the Tractorhouse website. Perhaps you can check them out and get the close up pictures that may help you out. You might also be able to find information on some of those companies' websites, too.
 
Use a knife applicator and you will be fine. I'm going to spread some dry on and cultivate it in this year.
 
yes the N will be split, some at planting and the rest side dressed.

I thought about dribbling it on with my sprayer but would have to replumb the booms. its on 20" spacing and I plant 30s. That might be option 2 though.
 
It will depend on how much you want to put down. 4 rows at 10 gallon​ per acre, you can probably get by with a small 12 volt pump.
 
You might want to check out auctiontime, the 4 and 6 row stuff goes pretty cheap most times, this ones cheap right now.

http://www.auctiontime.com/listings/farm-equipment/auctions/online/18961551/john-blue-300?errinfo=timeout&err=1
 
How tall is the corn? Do you have a cultivator? Mount tanks on tractor with plastic lines running just in front of the shovels. Shovels will work it in and you don't have to worry about damage to corn leafs Just keeping it simple
 
Nitrogen over the top will evaporate if it doesn't rain. Too expensive to waste.
 
We plant with a 6 row planter also. A few years ago I bought a Used anhydrous bar. Less than 500$ . It was 5 shanks. Changed it to just 3. Knifing in every other row. Had to run 2 hoses to each knife. Pressure was to high with just one. Also you have to pull a 1000 gal nurse tank. Pulled it for years with a 60hp Allis. Check at your farm supply store. They probably have a old 3 point bar laying around. The old flow control valves work and are laying around. Everybody has gone to gps controls. You do need to be careful. Have someone school you on hooking and unhooking nh3 hose. It's also the cheapest. Form of Nitrogen.
 
If they have a six row just block the hoses to the outer disk openers and drop the disk openers. Set it up so you are pulling 5 disk openers. All of the openers will have restrictors at the end of the hoses where it shoots the 28% out into the slot. The outer two orfices will be 1/2 the rate of the inner three. When you turn around the outer openers will be applying again, but only at a 1/2 rate. Did this in 2011 and it worked well. There are rate charts using tractor speed, pressure, and orfice size to figure gallons per acre. You can check your application rate by measuring out a distance in the field and catching the nitrogen in five gallon buckets from the hoses. Weigh the nitrogen caught and figure the acre (s) covered. Another possibility is to just fertilize the three rows where the tractor drive and not between the outer planter rows. Plant roots will grow to the nitrogen and get it. Good luck.
 
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