Uniformity of Emergence Uniform seeding depth is a critical factor in achieving uniform emergence. Uneven emergence affects crop performance, because competition from larger, early-emerging plants reduces the yield potential of smaller, later-emerging plants. Yields can be reduced by 5% when half the stand suffers from a 7-day delay in emergence and by 12% when half […]
The early start to the corn season came to an abrupt halt in parts of Ontario on May 23rd when temperatures dipped to -3oC in parts of the province. It is always painfull to see corn seedlings flat on the ground (Figure 1.). However, with corn mostly at the spike to 4 leaf stage when […]
In any given year, as much as 32,000 acres of Ontario corn is re-planted due to uneconomical plant stands. A two year study conducted at the University of Guelph demonstrated that either Assure II + Sure Mix, Excel Super or Select + Amigo could be applied the day before replanting corn to effectively control a […]
If you are unhappy with your stand of corn and think you may wish to replant, download the Ontario Corn Replant Calculator to assist you in this important decision. Many thanks to Dr. Dave Hooker and Ken Janovicek (Plant Agriculture Department, University of Guelph) for their efforts in putting this tool together. DOWNLOAD: THE ONTARIO […]