Recent Updates

2020 Middle Tennessee Grain Conference (Feb. 4, Tullahoma)

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The 2020 Middle Tennessee Grain Conference will be held at the UT Space Institute in Tullahoma, TN on February 4th. Registration begins at 7:30 AM with the program starting at 8:30 AM.  Participants are asked to pre-register at their local UT Extension Office until noon on January 31. Payment will also be accepted at the door. The $10 registration fee includes the program, refreshments, lunch, a conference cap, and a proceeding notebook.

Pesticide/dicamba re-certification will also be offered at 2:30 PM.  Additional details, including the registration form are available at Middle TN Grain Conference Flyer.

 

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Tennessee Top Bean Winners Revealed

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Tennessee held the Top Bean soybean yield contest in 2019, as a collaboration between UT Extension and the Tennessee Soybean Promotion Council.  Dry, hot weather in September and excess rains in October and November, created some yield challenges for soybean producers who planted late, but yields for early planted beans were good to excellent.  Most higher yield entries were from early (late April or early May) planted soybeans planted on narrow rows.

For the contest, Tennessee was divided into five districts with first and second-place winners in each district.  The district fist-place winners automatically competed for Top Bean state yield champion in irrigated and nonirrigated production.  Congratulations to Mr. Brad Burks (Lauderdale county) who is the 2019 state winner for irrigated soybean production with 100.2 bushels/acre, and to Mr. Eric Reed (Lincoln county) who is the state winner for nonirrigated soybean production with 89.2 bushels/acre.  All district and state winners will receive additional recognition at their local Grain Conferences in February.

For a complete listing of district winners and runners-up please click on the link below:

Contest Winners

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2020 TN Cotton Variety Guide now available

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The 2020 TN Cotton Variety Guide is now available online.  This preliminary report serves as a precursor to the complete Variety Trial Results which will be published after the remaining samples have been ginned and classed. Summary tables from the 2019 season were calculated from five Official Variety Trials (OVTs) and nine County Standard Trials (CSTs) scattered throughout TN’s cotton producing counties. Continue reading

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2019 CST Soybean Data

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The 2019 County Standardized Trial-Soybean Results are now available.

This year, the trials evaluated 88 soybean varieties from 15 companies at 71 locations.  Across all varieties and maturities, the tests averaged just over 60 bu/ac.  Sufficient rains and soil moisture got this crop off to a great start and earlier planted beans showed no sign of drought stress in most locations.  As the season went on, July and August offered little rain to much of TN and later planted beans suffered during pod fill and showed reduced yields in many locations.  Maturity and herbicide tolerance is split into 6 protocols.  Glyphosate/Dicamba tolerant varieties are tested in four separate trials; late MG III, early MG IV, late MG IV, and early MG V.  Our Glufosinate tolerant trial, now hosting some 2-4-D tolerant varieties are separated into two trials; early MG IV and late MG IV.

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String-out, fall out, and estimating yield loss in cotton

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While the finish line is either within sight or has been reached by most, Tennessee still has several acres of cotton in the field.  Several have reported fall out, or seed cotton on the ground, on some of these acres.  There are several methods to estimate yield loss from fall out.  This article explains string-out, fall out, the method for estimating harvest loss from lock counts and covers potential sources of error in the estimate.  Continue reading

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2019 County Standardized Trials Corn Data

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The 2019 County Standardized Trials data are now available. This year, 58 hybrids were evaluated with 49 test locations being harvested.  A great corn year brings the overall average across all locations and hybrids to 206 bu/ac.  The tables are separated into 3 maturity groups, early <114 day, medium 114-116 day, and full >116 day corn.  Hybrids are listed in descending order within each maturity across locations.  UT recommends selecting hybrids that are in the A group statistically. Hybrids with *’s next to their name, have been in the A group for consecutive years.  Two (**)  indicate this hybrid has been in the A group for 3 consecutive years.

A special thanks to those companies involved in these trials for sending a great lineup.  Thank you to all the county agents involved in getting these trials in and out.  Thank you especially to the producers who allow these trials to be placed in their fields to provide all of Tennessee with a non-bias look at head to head yield comparisons across the state.

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Free soil testing for pathogenic nematodes in 2019 & results from 2018 samples

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Taking soil samples this fall? Why not send them for nematode screening? Take the test and beat the pest! Read on to learn how to take soil samples, the importance of soybean cyst nematode (SCN), and what 2018 soil samples revealed with regard to SCN. Continue reading

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Picking cotton in below freezing temperatures

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With the arctic blast in the forecast and the substantial number of cotton acres left in the field, several have recently asked about how to keep water in their cotton pickers moisture system from freezing. Some operators occasionally mix a small percentage of methanol with water to lower the freezing point of water, but extreme caution must be used with this liquid since it is highly flammable. This post includes a brief demonstration concerning methanol/water mixtures and freeze points of different mixtures. Please note prior to using methanol or any other liquid in your moisture system you should consult the manufacturer.   Continue reading

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