Harvest Underway Early For 2007
Corn harvest got an early start across the country, the managers of F.I.R.S.T. (Farmer's Independent Research of Seed Technologies) provide a snapshot of how corn and soybeans are yielding. Following are summaries for this week’s harvest of corn. Click on the reports in blue to see exact harvest information from on-farm tests. To view maps of the regions these harvest reports cover, click on the links below.
Illinois Central, Illinois South, Illinois West
Central, and Illinois East Central
Both planted on April 29, the two Virden, IL, plots posted fantastic yields with an average of 219.1 bu./acre for the early season test and 216.6 bu./acre for the full-season test. Rainfall at this site was considered spotty during the growing season. Although stalk lodging was not prevalent, pinch tests by hand revealed numerous hybrid’s stalks were weakening at harvest. A site was also planted at the Virden, IL, location to test hybrids that are not genetically resistant to rootworm beetles. Average yields there were 203.2 bu./acre.
Despite only 5.5 in. of rainfall from planting April 28 to August 1, the Findlay, IL, early and full-season tests posted respectable average yields of 188.3 bu./acre and 191.8 bu./acre, respectively. Corn rootworm levels are high at this site, which resulted in lodging scores above 20%. A site was also planted at the Findlay, IL, location to test hybrids that are not genetically resistant to rootworm beetles. Average yields there were 164.3 bu./acre.
Average yields at the Jewett, IL, location were 160.9 bu./acre for the early season test and 158.0 bu./acre for the full-season test. This is one of two F.I.R.S.T. sites in Southern Illinois for corn-on-corn results.
The Salem, IL, early and full-season tests posted below average yields of 84.3 bu./acre and 96.7 bu./acre, respectively. After planting, the site had a near perfect emergence and stand. However, limited rainfall and the August heat were blamed for the low yields.
The Flora, IL, early and full-season tests posted average yields of 162.4 bu./acre and 131.2 bu./acre, respectively. The field experienced relentless heat in the month of August which caused grain moistures to plummet below 15% at this location. Corn borer infestation was also noted as a problem at the site.
Harvested Sept. 13, the Du Quoin, IL, site had a below average yield of 81.7 bu./acre for the early season test and 54.0 bu./acre for the full-season test. While stands were very good, the plot only received 1 in. of rain in June, .5 in. during July and .3 in. in August. Some hybrid’s plants did not develop an ear, which was attributed to the heat. Kernel size was also very small for the site.
A late planting date of May 20 may have contributed to lower than average yields at the Belleville, IL, location. The early and full-season tests posted average yields of 173.1 bu./acre and 177.7 bu./acre, respectively. Farmer John Barttelbort noted that most of his earlier planted corn in the area was yielding in the 200 bu./acre range. Overall, this site had very tall plant and ear heights.
Harvested Sept. 4, the Forsyth, IL, site yielded an impressive average of 211.6 bu./acre for the early season test and 215.4 bu./acre for the full-season test. In contrast to previous years, corn borer infestation was not evident at this site.
Ear development at the Vandalia, IL, location suffered due to the August heat and limited rainfall. Average yields were 99.0 bu./acre and 86.0 bu./acre, respectively, for the early and late-season plots.
The Athens, IL, site had excellent grain quality and kernel depth, thanks to timely rains from April through August. The early season test had an average yield of 213.0 bu./acre, while the full-season test posted an average of 218.5 bu./acre.
Limited rainfall in June and ample heat in August are believed to have reduced yields 20-30 bu./acre at the Tremont, IL, site. Leaf diseases also appeared abundant at this site this year. Average yield was 197.9 bu./acre on the early season test and 174.4 bu./acre on the full-season test. A site was also planted at the Tremont, IL, location to test hybrids that are not genetically resistant to rootworm beetles. Average yields there were 207.0 bu./acre.
The Huntingburg, IN, field was planted May 9 and harvested Sept. 10. Average yield was 170.1 bu./acre, which was considered good for the rainfall this location received during the growing season. Stalk rot was present due to the hot and dry weather in July and August.
The Holland, IN, location received rain at the right time to boost the average yield to 218.1 bu./acre. Emergence in the field, however, was uneven.
The Folsomville, IN, location produced a fantastic average yield of 246.8 bu./acre. Plant health was good and there were no stalk quality issues.
Good rainfall and heat in August helped to fill the ears and kernels out nicely at the Grand Ridge, IL, site. However, by harvest on Sept. 13, stalk rot was becoming a concern. This site averaged 227.7 bu./acre on the early season test and 230.9 bu./acre on the full-season test.