Corn on corn practices

[TFamilyFarms]

Hey everybody!  We have been shifting to more corn on corn acres every year and I was hoping people could share some corn on corn strategies that have been working well for their operation. I am especially interested in nitrogen/nutrient management(timing and placement), but would appreciate any insight.

[idalivered]

all stuff you probably do now. plant lower residue corn hybrids, pay attention to emergence and early growth ratings, some type of starter fert., put part of the N on fall or preplant as nh3 and put  the balance on at sidedress or over the top with liquid n at planting. I'm not equipped to do it, but  putting some N on at planting time with the planter seems to have good results for many.(2x2 application)  In ncia and smn many still fall molboard coc. I have one field that will be molboard plowed this fall for the 7th year in a row.  good luck

[jtheis04]

I definitely agree with upping your N rate and splitting it into ~3 applications if possible.  Have to get some on through the planter, whatever floats your boat.  Sidedres and possibly getting some out with a pre-emerge herbicide application.  The one thing that I'm curious about is your preferred method of tillage if any on the farm.  How is your base fertility and pH.  I generally tend to bump population slightly on C-C fields if it's heavier soils.  Be looking for good disease packages in your varities.

[kraft-t]

I'm no expert but they tell me to plant varietie unrelated to the variety planted the previous years. Something about limiting disease exposure with consequitive years of planting the same genetics

[ZR2]

Broadcast 30-40# of nitrogen on the stalks in the fall w/your liquid p/k plowdown. Chisel plow the ground in the fall, next spring put another 120# liquid on with herbicide and incorporate, we have a dry starter we put on 30-15-15-20s, then sidedress another30-60# depending on how many years of corn you are looking at. The longer in corn, the more N we throw at it.

Don't forget a foliar fungicide @ tassel. We have seen 20-30 bu increases using fungicide in C-C. Some are looking at using a partial rate of fungicide @ V5-V7 with roundup along with a full rate application @ tassel. I haven't seen enough data or experimented with this as much to make a confident recommendation.

[jkaahend]

Have a warm spring, on the dry side. Otherwise nitrogen loss is to big of an obstacle. 2007 my best yields were c-on-c. 2008,9 & 10 c-on-c took big yield hits. Big. On second thought, just don't do it.