Funded by the Illinois Soybean Association checkoff program.

February 2017

Do RR2 and Liberty Link Soybeans Still Work?

Weed control has gotten tougher and more complicated over the past 10 years. When Roundup Ready® soybeans were first introduced back in 1996, 20 years ago, glyphosate was a one-stop weed control solution. One or two passes were all that it took. But it didn’t take long for weeds to become resistant to glyphosate. The first species, rigid ryegrass, already showed resistance in 1996, Italian ryegrass developed resistance in 2001 and perennial ryegrass in 2008. Now there are 36 weed species that are resistant to glyphosate. And today in Illinois we deal with marestail, waterhemp, Palmer amaranth and ragweed. [...]

By |February 27, 2017|

Understanding a Soil Test Report

Understanding a soil test is an important element of farming and not as hard as you think. Accurate soil sampling and soil test reports continue to be one of the most valuable pieces of information for evaluating nutrient needs and identifying possible yield-limiting fertility factors. Soil test data are critical for developing economic fertility plans while maximizing return on investment, crop productivity and environmental stewardship. Applying fertilizer without accurate soil testing can’t be achieved with a “spread by crop removal” approach. This is because some nutrients, such as pH and boron (B), may be yield-limiting and remain unaddressed. After [...]

By |February 24, 2017|

When to use insecticidal seed treatment in soybeans

If I were to make a guess, I would say that 80% or more of the soybean seed sold today is treated with both a fungicide and insecticide. In the case of some individual seed companies it may be near 100%, because they want to treat all soybean seed going out the door. I can see a seed company’s concerns from their perspective—growers are reducing seed rates to lower seed cost, as most realize that a final stand of 100,000 to 110,000 plants, evenly distributed, will optimize yield. Yet those same growers are planting earlier, and often in harsher [...]

By |February 22, 2017|

Nitrogen on Soybeans: Here is What We Know

Soybeans require nitrogen and lots of it because it’s a protein crop and proteins contain 16% nitrogen. For decades we have relied on the soybean plant’s ability as a legume to fix its own nitrogen. And it can fix a lot, with the rest supplied by the soil. But as soybean yields ratchet upwards into the 70- and 80-bushel range in whole fields, nitrogen will become increasingly limiting. The challenge to making a nitrogen recommendation is to know when yields are going to be high, and how much nitrogen the soil and plant can provide. There are no easy [...]

By |February 22, 2017|

SCN and SDS – Two Soybean Pests Worthy of Your Attention

SCN and SDS represent large threats to soybean production in Illinois. Attend the upcoming webinar “Solutions to effectively manage SCN and SDS” sponsored by the Illinois Soybean Association and ILSoyAdvisor. Presenters will be Jason Bond, plant pathologist from Southern Illinois University and Nick Tinsley with Bayer Crop Science. Sudden death syndrome (SDS) and soybean cyst nematode (SCN) are two of the most economically significant diseases affecting soybeans grown in Illinois and throughout much of the Midwest. In fact, the soybean cyst nematode (Heterodera glycines) and the pathogen that causes SDS (Fusarium virguliforme) have been documented in almost every state [...]

By |February 20, 2017|

ISA Names First CCA Soybean Master Adviser

ISA Names First CCA Soybean Master Adviser New Checkoff-Funded Award Recognizes Dedication to Better Soybean Management BLOOMINGTON, ILL.—February 17, 2017—Kristofer Ehler, Thomasboro, Ill., is the first honoree in a new Illinois soybean checkoff-funded program to recognize Certified Crop Advisers (CCAs) who excel in helping farmers improve soybean production. Ehler received the CCA Soybean Master Adviser award in Peoria Feb. 16 as part of the ILSoyAdvisor.com Soybean Summit, sponsored in part by the Illinois Soybean Association (ISA). “Among the many talented crop advisers in Illinois, Kristofer Ehler is clearly one of the most dedicated when it comes to soybean management,” [...]

By |February 20, 2017|

Tricking the Soybean to Fix more Nitrogen

Growers and agronomists know that soybeans are legumes and fix most of the nitrogen they need in the nodules they carry and support on the roots. The lesser known fact is that soybeans probably fix (capture) only enough nitrogen to produce 50 or 60 bushels, with the rest of the nitrogen coming from the soil. Growers producing 80 bushel or 90 bushel beans, or even 100 bushels, know that they probably need to apply some nitrogen to get there. But what is unknown is how much, when to apply and what form is best to apply. If we could [...]

By |February 17, 2017|

Response of Broad Spectrum and Target Specific Seed Treatments and Seeding Rate on Soybean Seed Yield, Profitability and Economic Risk

Editor’s Note: This summary was posted in the January 19 edition of the Wisconsin Crop Manager (Volume 24: No.1). The full article can be accessed here. The commercial base (CB) and ILeVO (CB + fluopyram) seed treatments decreased risk and substantially increase profit across a wide range of seeding rates. Yield response to seed treatment was environment specific, and across all environments, the yield response to ILeVO was 2.8% compared to 5.3% (WISDS) and 6.1% (IA) when visual SDS symptoms were present. At 2016 and 2017 seed and seed treatment costs, CB and ILeVO seed treatments at 140,000 seeds/A reduced [...]

By |February 16, 2017|

What is Liberty Herbicide

Maybe in 2017 it’s time to take a hard look at using the LibertyLink® system to combat weed resistance and make it part of your herbicide rotation plan. Liberty® and LibertyLink crops are more relevant now than ever before. With a lot of resistant weeds, growers need a way to rotate away from glyphosate and use an additional solution for managing herbicide resistance. LibertyLink soybeans first hit the market back in 2009 and 2010, quite a while after LibertyLink corn arrived. But they weren’t planted across any large acreage until waterhemp and Palmer amaranth became such weed problems and [...]

By |February 14, 2017|

Choosing Roundup Ready or Liberty Link

Comparing the Liberty Link® to the Roundup Ready® System in soybeans—how do you know which to choose? With the onset of resistant weeds such as marestail, waterhemp and Palmer amaranth in soybeans, many growers are looking to move from depending on the Roundup Ready system to a Liberty Link system. We need to take into consideration the differences between them and carefully consider which system will be best suited for your farming operation. I feel there are three main questions to consider when making this decision. The first question is whether there any differences in yield. In researching this, [...]

By |February 13, 2017|
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