The source for agronomic info and on-farm research to improve yield and profitability. 🌱 Funded by the @ILSoybean Checkoff. Email [email protected]
Illinois, USA
Joined April 2016
- Tweets6.9K
- Following2.7K
- Followers2.9K
- Likes1.9K
Field Advisor retweeted
Nearly half of Illinois' soybean crop is now in the bin! 🚜🌱
With 48% of soybeans harvested statewide, combines are rolling across Illinois as farmers take advantage of harvest conditions and continue gathering this year's crop.
Field Advisor retweeted
According to research from a @IllinoisCropSci project supported by @ILSoybean, average soybean yields were slightly reduced after a cereal rye cover crop at 3 locations over 3 crop years. Yields weren’t impacted by additional N and S application. #USSoy bit.ly/4ublR96
Field Advisor retweeted
Cover crops can prevent residual herbicides from reaching the soil, but rain can wash a portion of those herbicides to the ground – as long as an individual herbicide chemistry allows it!
Consider applying residual herbicides early-postemergence when planting green to maximize how much reaches the soil, and know that certain herbicides have more potential to wash-off cover crop residues than others.
Learn more in today’s article: growiwm.org/planting-green-y…
#growiwm #integratedweedmanagement #farming #agriculture #rowcrops #covercrops #cerealrye #rollcrimping #herbicides
Field Advisor retweeted
This #UpdateFromTheField comes from @FieldAdvisor instead of the field! Yesterday Rachel and Haleigh had the opportunity to meet with @litchfield_ag and @SKayPorter at @ILSoybean. We're grateful for the support of all of our state checkoff partners! #SoyCheckoff #ScienceForSuccess
ALT Four women stand in front of a building smiling.
Field Advisor retweeted
Even if your cereal rye doesn’t build a lot of biomass, it could still be suppressing weeds!
Texas A&M @TAMUWeedNinjas research has found that cereal rye will suppress weeds by blocking and shading the soil and releasing weed-suppressing compounds from its roots --- even BEFORE that rye biomass reaches the recommended pounds per acre.
Learn more from Gustavo Camargo Silva & @MBagavathiannan here: growiwm.org/cereal-rye-smoth…
Field Advisor retweeted
Corn Growing Degree Days.
Corn development can be predicted by tracking growing degree days (GDD) which measure heat accumulation using daily air temperatures. For example, shoot emergence occurs when 90 to 120 GDD have accumulated after planting. Corn growth occurs when temperatures are above a certain minimum or base temperature. The base temperature for corn development is 50°F. Development of some insect species also may be predicted by using degree days, but the base temperature may differ.
Collect the daily high and low air temperatures and adjust (if necessary) for the base (50°F) and maximum (86°F) temperatures. If the low is under 50°F, use 50°F to calculate GDD for that day. If the high exceeds 86°F, then use 86°F to calculate GDD.
The average of the adjusted high and low temperatures minus the base temperature equals the daily GDD accumulation. Add GDD gained for each day to estimate the accumulated GDD over time.
Example of calculating growing degree days is shown below. The total for three days: 17.5 + 8 + 29 = 54.5. Always round the growing degree day numbers up, so the final is 55 GDD.
@NationalCorn @PurdueCorn @KentuckyCrops #corn #grow26 @kscorn @iowa_corn @OhioCornWheat @corn
ALT Growing degree day calculation examples for three days showing low and high temperatures and the resulting growing degree days. Day 1 Low is 55°F and high is 80°F. Day 2 Low is 40°F and high is 66°F. Day 3 Low is 72°F and high is 92°F. Calculation for Day 1: (80+55)/2 - 50 = 17.5 GDD. Calculation for Day 2: (66+50)/2 - 50 = 8 GDD. Calculation for Day 3: (86+72)/2 - 50 = 29 GDD.
Field Advisor retweeted
ISA Regional Technical Agronomist Darby Danzl highlights a winter barley cover crop plot at the SIU Belleville Research Center.
Through the On-Farm Trial Network, we're comparing cover crops for weed suppression and soybean yield impacts
Learn more at fieldadvisor.org/on-farm-tri…
Field Advisor retweeted
Apply now to join the 2026 cohort for Cover Crop Essentials, a multi-state, virtual course on all things cover crops! Course intended for Midwest ag professionals Extension, NRCS, and Conservation District staff. More information can be found at buff.ly/p86flRq.
Field Advisor retweeted
Every year, we publish results from field trials that we feel translate directly to farmer practices - insecticide and fungicide efficacy, pest surveys, and resistance bioassays. You can find the 2025 results (along with previous years) at go.illinois.edu/pestmanageme…
Field Advisor retweeted
Carbon programs need to work better for farmers — not just the companies behind them. Take this 5-min farmer survey to inform payment levels, contract flexibility, and program requirements: surveymonkey.com/r/VZL7C62 #carbonmarkets #farmersurvey
Field Advisor retweeted
SCN can reproduce on over 100 common weeds, letting nematode populations increase before soybeans are planted. Plant pathologist @jpsbond shares how to prevent weeds from undermining your active SCN management strategies. :thescncoalition.com/news/202…
Field Advisor retweeted
How many soybean plants are enough? 🌱
Check out our new article in @cropforageturf reviewing factors influencing plant population, yield response, and economic optimum density across the U.S.
@ILextension @SoybeanScience1 @FieldAdvisor
acsess.onlinelibrary.wiley.c…
Field Advisor retweeted
Soybean seed costs are about 40% of the variable costs in soybean production, and optimizing seeding rate will help to produce high yields without overspending on variable costs. Learn more from the factsheet: resources.ipmcenters.org/res… #SoyCheckoff #ScienceForSuccess
ALT Screenshot of a factsheet on plant population density. The right side reads "FIGURE 1. Soybean growth is affected by population. Soybean plants were harvested from a high (left) and low (right) plant population trial area. Note the number of branches, leaves, and seeds differ significantly on a per plant basis, but there is little difference in seeds produced on an area basis." The left photo depicts soybeans grown at a higher plant population and the middle photo depicts soybeans grown at a lower plant population.
Field Advisor retweeted
🌱 What to watch as soybean planting begins in Illinois
@ILextension @ACESIllinois @FieldAdvisor @SoybeanScience1
👉 farmdoc.illinois.edu/field-c…
Field Advisor retweeted
New project on cover crop management: camelina, triticale, cereal rye, and clover looking good in Monmouth and Perry
@IllinoisNrec @ILextension
Field Advisor retweeted
Seed Treatments: Questions That Emerge When Plants Don't from Extension at cropprotectionnetwork.org/pu….
@MartinChilvers1 @DylanMangel @badgercropdoc @AlbertTenuta @cropdoc08 @dsmuelle @baldpathologist @MandyBish1 @MahDuffeck @travisfaske @maddishires @alabamaED @DTelenko @BisonBeanDoc +others
@OhioSoybean @ILSoybean @FieldAdvisor @arkansassoybean @INSoybean @kysoybean #plant26 #agx #USSoy @UnitedSoy
ALT Soybean seeds with a reddish seed treatment coating.
Field Advisor retweeted
In this episode of the @FieldAdvisor Podcast, ISA Agronomist Stephanie Porter, CCA, discusses current field conditions and drought concerns, along with soybean seed quality, input costs and the economic factors shaping on-farm decisions.
bit.ly/4bPlRpf
Field Advisor retweeted
To help soybean farmers stay ahead of emerging nematode threats, @TheSCNCoalition has created 4 Soybean Nematode Management Guides, providing practical tools and science-based strategies to identify and manage yield-robbing, parasitic species. #USSoy bit.ly/4dcAUu6
Field Advisor retweeted
A $7 million USDA grant has allowed Illinois to relaunch a program incentivizing the early establishment of cover crops. Pre-enrollment begins April 1 for the I-COVER program. From @HannahSpang_FW ⬇️ farmweeknow.com/environmenta…
