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Tallying yields on the MDA Crop Tour

  • 2013 MDA Weather Services Crop Tour

    The morning started off with a stop in Johnson County. By the soil moisture it appeared that this area had recent rain thus the yield estimates were the highest for the day at about 235 bu/ac. One of the members counts the kernel rows.

  • 2013 MDA Weather Services Crop Tour

    After a 30-foot-long rope is laid down and the number of ears in two rows are counted, the next step in the yield-estimating process is to pull three random ears from each row.

  • 2013 MDA Weather Services Crop Tour

    These ears are from a field in Linn County, yield estimates were high at roughly at 235 bu/ac due to the recent rains in that area. Also, The average rows were from 15 to 17 kernels, the ears averaged 7 inches in this area of Iowa.

  • 2013 MDA Weather Services Crop Tour

    Information such as average ear count, average ear length, average kernel rows, and row spacing are calculated together to estimate the yield in that field. These calculations are generally proven accurate when yields come in at harvest.

  • 2013 MDA Weather Services Crop Tour

    Along the tour, we made it to Tama County. The beans here looked wilted, suffering from drought stress. In these sandy soils, corn yields were the lowest of the day at around 131 bu/ac.

  • 2013 MDA Weather Services Crop Tour

    Kyle Tapley, MDA Crop Tour leader, is going over his data while checking the soybeans in Tama County. As you can see, these beans are suffering in this area of Iowa.

  • 2013 MDA Weather Services Crop Tour

    We stopped in Benton County and observed that soil moisture was slightly lower. Beans were setting pods, but their overall condition was inferior to beans in Johnson and Linn counties.

  • 2013 MDA Weather Services Crop Tour

    Corn yields in Benton were lower(at about 184 bu/ac), which dropped the high yields reported from the first two stops in Johnson and Linn counties. Typical for this tour, this ear's grain length measured 7.5 inches.

  • 2013 MDA Weather Services Crop Tour

    The ears are from Grundy county where we saw a slightly higher yield estimate (about 186 bu/ac) than Benton county due to noticeable more moisture in the soil.

  • 2013 MDA Weather Services Crop Tour

    The tour made its way west into Cerro Gordo county where we found that soil moisture was good, but plant population was noticeably lower than other stops from that day leading to a low yield estimate around 163 bu/ac for that area.

  • 2013 MDA Weather Services Crop Tour

    According to Tapley, on this part of the tour through Iowa, overall yields exceeded expectations. However, the tour was north of the driest areas in central Iowa. The average yield for the counties visited was around 198 compared to 159 from last year, which is a 24%. The soybean crop was still too young for estimates.

Agriculture.com followed the MDA Crop Tour across Eastern and Central Iowa

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