Cover crop strips were 12-14 bpa less than the no cover strips.One year of data but very real
results.The entire field was brown in Spring - no growing crops to take moisture, but in this
year that's about the only thing I can think of that caused yield loss like this.A very warm March
with little rain was followed by 2.8" in April and 5.1" in May before the rain shut off for 7 weeks
that included several 100+ degree days and many days in the low-upper 90's.The 2011 wheat crop
yielded 83 bpa and straw was spread back on the field so all treatments had good ground cover.
All weighing was done by Heidi Johnson - Jefferson Co. UWEX
* =Poultry manure provided approximately 100 units of N according to UW rec's + 88 lbs applied N as 32%.
Tom Novak - Total Crop Management, LLC - (262) 903-0698
Second field, same treatments just using a lower N rate here which reflects what I would normally do after summer poultry manure. I always figure summer manure has maybe 50-90 units of N available to the corn crop 10+ months later so I side-dress about 90 units of N after wheat if it has been manured. Looking for thoughtful comments. Got more things available to discuss if more info is needed. I have yield data from previous years so one can see what the potential is of land like this. It's quite dependent on in-season rains, but I've never seen yields this bad thanks to drought in 2012.