Which week do we see the bulk of grain corn planting activity?

Figure 2 – Percent of grain corn acres seeded per week in Manitoba (2008 – 2012) shows when grain corn acres have been planted in Manitoba over the past five years on a weekly basis.  Seeding date is presented along the x-axis.  The first number represents the week of the month while the second number represents the month.  So 1:04 is the first week of April, 2:04 is the second week of April and so on.  The y-axis shows the percentage of acres seeded in that particular week.  The solid black line represents the 5-year average from 2008 to 2012.   The figure was created using MASC seeding data from 2008 to 2012 , where data is for final insured crop in the ground.

In looking at the 5-year average, the third week of May (3:05) has seen the most planting activity in a one week time frame.  Therefore, one could argue that planting the third week of May is ‘normal’ when looking at the past 5 years.

This data also illustrates how many acres can be seeded in a short period of time.  For example, in 2011 there was 68% of the total grain acres seeded during the third week of May.  This equated to about 119, 000 acres of grain corn planted in that one week time frame, or 17,000 acres per day.  So we can see that once conditions are conducive to planting, producers are able to plant a large amount of acres in a short time frame.

For information on grain corn seeding deadlines, grain corn insurance areas, dollar values and any restrictions that may apply to crop coverage for the 2013 season, check with your local MASC agent or visit MASC’s website: http://www.masc.mb.ca/masc.nsf/crop_summaries.html

Submitted by:  Pam de Rocquigny, MAFRI Cereal Crops Specialist

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