Category Archives: Corn

Lily Weed Family Burndown

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Blue flowers distinguish grape hyacinth from wild garlic

There have been questions on control of wild garlic, grape hyacinth and in a few cases, star-of-Bethlehem. These three weeds, in the Lily family, are often mistaken for each other as they all derive from bulbs and are low-growing perennials. Continue reading


Converting Between Mehlich 1 and 3 Soil Test Values for West Tennessee Soils

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Most of the commercial and state soil testing laboratories in and around Tennessee use and prescribe fertilizer recommendations based on Mehlich 3 soil test extraction method. Most growers may receive soil test results from laboratories that utilizes Mehlich 3 soil test extraction method. However, The University of Tennessee gives fertilizer recommendations based on the Mehlich 1 extractant. This makes it difficult for growers to take advantage of The University of Tennessee fertilizer recommendations. Currently, the Mehlich 1 and 3 conversion equations used in TN were derived from the University of Kentucky, which were based on Kentucky soils (Table 1). Continue reading


2023 County Standardized Trials-Corn

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39 Corn Hybrids were evaluated in the 2023 CST program.  With the weather we had this summer, our yields are very strong with an overall average across all hybrids and locations over 210 bu/ac. With the many locations/replications in these trials, we can look at performance across many soil types and weather/climate conditions that you can use to help select high yielding, consistent hybrids to bring to your farm.  Contact your local county agent for more details or if you need a print out of this data.

These CST plots are large strip trials located ‘on-farm’ with a minimum of 300 feet in length.  Inputs and management decisions are on a by location basis and determined by the cooperating producers.  Three relative maturity groups divide the trials, Early Corn will be 113 day and earlier, Medium Corn will be 114-116 day, and Full Corn is 117 day plus.  Thank you to everyone involved in the CST program for your support and contributions: County Agents, UT Extension/Research, Growers, Industry, Retail.

Below are the results for our 3 RM groups.  Click on the table to open a PDF of these tables.  These results can also be accessed on https://search.utcrops.com/

Early Corn <114 day

Medium Corn 114-116 day

Full Corn >116 day


2023 Corn Grain OVT Prelim

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Prelim results from the 2023 TN corn grain hybrid OVT are now available as an excel file 2023 Corn Grain Tables. Thirty-three hybrids were evaluated in small plot replicated trials (REC) at 9 sites. The CST trial data is still being finalized but should be posted within the next week and will be included in the final combined report to be posted here and on search.utcrops.com.


Irrigation Termination Decisions for Corn and Soybean

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As we approach the end of July, much of our corn and some of our soybean acres are in the latter portion of their respective reproductive growth stages. As we progress toward physiological maturity, lets revisit irrigation termination decisions for these two crops.

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