eUpdate Articles Tagged: soybeans


Postemergence marestail and pigweed control in soybean fields

soybeans marestail pigweed weed control weeds 

2018 Kansas Performance Tests with soybean varieties report now available

soybeans Performance Tests 

Soybean dry down rate before harvest

Soybeans will reach final maturity with high seed water content, moving from 90% to around 60% from beginning of seed filling until final maturity. What factors control the dry down rate in soybeans?

soybeans drydown 

Green stem syndrome in soybeans

Green stem syndrome in soybean is a condition by which the stem remains green while the seeds are mature and ready to harvest. Find out the best management options in this article.

soybeans green stem 

Insect activity update - Alfalfa, soybeans, and wheat

Find out what insects are still buzzing around crop fields in Kansas in this article from K-State Extension Entomology.

wheat soybeans insects alfalfa 

Crop management publications updated for 2020: Corn, Soybeans, and Sorghum

Be ready for the 2020 growing season with these three updated crop management publications from the Department of Agronomy and K-State Research and Extension. These comprehensive guides are written specifically for Kansas and contain valuable agronomic information.

soybeans sorghum corn publication  

Evaluating a new soybean seed treatment to control Sudden Death Syndrome in Kansas

Sudden Death Syndrome (SDS) is a disease that affects soybeans and is caused by a soilborne fungus. Since there are no varieties that offer full resistance, seed treatments are a common management practice. Read about a recent K-State study evaluating a new product for the 2020 growing season.

soybeans Sudden Death Syndrome seed treatment 

Marestail in soybeans: Strategies for the best control

Controlling marestail in soybeans continues to be a big challenge for Kansas no-till producers. Application timing and weed size are critical factors for successful control of this weed that germinates in the fall or early spring.

soybeans weed control marestail 

Key nutrients for soybean production in Kansas

Compared to other summer crops, soybeans remove significant amounts of nutrients per bushel of grain harvested. They need an adequate nutrient supply at each developmental stage for optimum growth. Read more about the key nutrients for soybean production.

soybeans nutrient requirements soybean fertility 

K-State recommendations for soybean planting dates and maturity group

Planting date is one of the primary management practices that can greatly influence soybean yield potential. Learn more about the Kansas planting dates and maturity groups for soybeans.

soybeans planting date maturity group 

Soybean seeding rates and optimum plant populations

The optimum seeding rate is one of the most influential factors for increasing soybean profitability as seed cost is one of the most expensive inputs. Read more from Cropping Specialist Ignacio Ciampitti in this article.

soybeans seeding rate plant population 

Effect of row spacing on soybean yield

There are still many questions about row spacing for soybean production. This article summarizes some research from K-State on the effect of different row spacing on soybean yield.

soybeans yield potential row spacing 

Soybean response to standing water and saturated soils

Recent heavy rainfall in portions of Kansas may have resulted in standing water and/or saturated soil in some locations. These conditions have the potential to negatively impact soybean production. Read more here from Cropping Specialist Ignacio Ciampitti.

soybeans saturated soils standing water root rot 

Late planting of soybeans: Management considerations

While soybean planting is tracking ahead of last year in Kansas, there are still some areas yet to be planted. What management strategies should be considered when planting soybeans later in the season?

soybeans late planting seeding rate row spacing maturity group 

Soybean planting and emergence progress report for Kansas and select Midwest states

The 2020 planting season for soybeans has moved passed half the acreage and is ahead of both the five-year average and the 2019 season due to favorable weather conditions in many Midwest states.

soybeans planting progress 

Update: Farmers and custom applicators can spray over-the-top dicamba products through July 31

This article briefly outlines new information from the EPA concerning the cancellation order of dicamba made by the Ninth Circuit Court of Appeals. More information will be coming as it becomes available.

soybeans dicamba cotton 

Registered dealers in Kansas can sell over-the-top dicamba product to end users

On Wednesday, June 10, the Kansas Department of Agriculture provided clarification of the impact of the EPA cancellation order for Engenia, FeXapan, and XtendiMax product labels.

soybeans dicamba cotton EPA 

Considerations for applications of over-the-top dicamba formulations

It is that time of year again for post-emergent applications of Engenia, Fexapan, and Xtendimax on dicamba-resistant soybeans. In light of the recent court ruling, it is vital that application restrictions are followed closely to prevent non-target dicamba injury to conventional, Enlist, and Liberty Link soybeans.

soybeans dicamba label requirements 

Identifying nutrient deficiency symptoms in soybeans

This time of year, soybeans may begin showing signs of chlorosis or other leaf discoloration. There may be many causes for this discoloration. Nutrient deficiencies are one possibility. Learn how to identify some of the more common deficiencies in this article.

soybeans nutrient deficiency 

Plant analysis for testing nutrient levels in soybeans

When crop fields appear variable, producers often wonder if the variability is related to nutrient status. Plant analysis can be an excellent tool for monitoring nutrient levels or diagnosing problems. Learn more in this article.

soybeans tissue testing nutrient anaylsis 

Status of disease pressure in corn and soybeans

What diseases are cropping up in corn and soybean fields this summer? For corn, most fungicide applications have been made, except for late-planted fields. Soybeans are generally looking good. Read more about what diseases have been found in soybean fields.

soybeans corn disease southern rust gray leaf spot foliar diseases 

Estimating soybean yield potential

Many producers like to estimate the yield potential of their soybeans well before reaching the end of the season. This article discusses two different methods for estimating soybean yields at this stage of the growing season.

soybeans yield potential 

Understanding soybean seed filling: Contribution to yield

There is still quite a bit of yield to be defined for soybeans in the next month. With most of the crop entering seed filling, weather conditions will be critical with respect to final seed weights.

soybeans drydown yield biomass accumulation 

2021 soybean planting intentions survey - Producer input requested

What are your 2021 planting intentions for soybeans? Do you have 5 minutes to complete a survey to help guide fall and winter extension programming? If so, please complete this survey!

soybeans survey 

Soybean dry down rate before harvest

Soybeans reach final maturity at a relatively high water content. Dry down rates depends on a few factors such as the maturity group, planting date, and environmental conditions at the end of the season.

soybeans drydown crop development 

Dicamba update: XtendFlex soybeans gain final approval

XtendFlex soybeans gained approval for use in the U.S. for the 2021 season. XtendFlex soybeans allow over-the-top application of glyphosate, specific dicamba-containing herbicides, and glufosinate (Liberty).

soybeans dicamba XtendFlex 

Don't miss the 2020 Kansas Soybean Yield and Value Contests

Soybean harvest is well underway in parts of Kansas. Don't forget to showcase your high yields! All soybean growers are invited to participate in the 2020 Kansas Soybean Yield and Value Contests. Read more about how to enter in this article.

soybeans Soybean Yield Contest 

Using game theory to understand social aspects of weed management decisions

Game theory is an economic tool that can be used to understand decision making in circumstances where uncertainty exists. This article examines the outcomes when applying game theory to farmers' decisions related to soybean weed management.

soybeans dicamba weed management 

Summer row crop disease summary for Kansas in 2020

In general, disease pressure was lower than normal for corn, soybeans, and grain sorghum. The dry weather at critical growth periods contributed to lower incidences of yield-limiting diseases. Read more in this article from Extension Plant Pathology.

soybeans sorghum corn summary row crops diseases  

Two new soybean publications are available online

Two soybean publications have been released and are available online. Kansas Soybean Management has been updated for 2021. Also, a new study on the relationship between yield and soybean seed composition is also available.

soybeans publication  

Soybean seedling diseases webinar series to begin on Feb. 23

Soybean planting is around the corner and the best time to protect against seedling diseases is prior to planting! A series of free webinars that will cover soybean seedling diseases and the latest information on fungicide resistance. See this article for more details.

soybeans virtual leaf diseases webinars  

Marestail in soybeans: Strategies for the best control

Controlling marestail in soybeans continues to be a big challenge for Kansas no-till producers. Learn about early spring, pre-plant, and post-emergence options for treatment in this article from Extension Weed Science Specialist, Dr. Sarah Lancaster.

soybeans weed control pre-plant herbicide marestail post-emergence 

Key nutrients for soybean production in Kansas

Soybeans, particularly high-yielding varieties, remove significant amounts of available soil nutrients per bushel of grain harvested. As the crop matures, adequate amounts are needed in each growth stage. Learn which nutrients are the most critical to soybean production in Kansas.

soybeans soil fertility nutrients 

Soybean seed treatments: Avoiding seedling diseases

As farmers start planting soybeans in Kansas, it is important to consider common causes of seedling damping off and potential management strategies. Learn about the main soybean seedling diseases and what seed treatments are effective in this article.

soybeans disease seed treatment seedling diseases 

K-State recommendations for soybean planting dates and maturity group

Soybeans can be planted over a wide range of dates with adequate soil moisture conditions, although germination and emergence could be reduced and/or delayed in when soil temperature is less than 60°F. Recommended maturity groups vary by region in Kansas.

soybeans maturity group optimum planting dates 

Soybean seeding rates and optimum plant populations

The optimum seeding rate is one of the most influential factors for increasing soybean profitability as seed cost is one of the most expensive inputs. Yield potential for each environment should be consider when deciding soybean seeding rates.

soybeans seeding rate plant population 

Effect of row spacing on soybean yield

There are still some questions about row spacing for soybean production. Some benefits of narrow rows include improved weed control and reduced erosion. Do narrow rows improve yield? What effect does the yield environment have on the yield response to narrow rows? Find out more in this article.

soybeans yield potential row spacing 

Inoculating soybeans is a good insurance policy

When planting soybeans in Kansas, it may be a good insurance policy to inoculate the seed. There are several reasons why soybean inoculation is a good idea. Learn more about the benefits in this article.

soybeans inoculation nodulation 

Several factors affect successful soybean inoculation and nodulation

If soybean plants appear nitrogen deficient despite being inoculated, this probably indicates that the inoculant failed. Learn how to assess nodulation of soybean roots in the field and what factors can cause poor nodulation.

soybeans nitrogen inoculation nodulation 

Soybean response to standing water and saturated soils

Soybean planting is well under way in Kansas. However, in many parts of the state, soybeans have gotten off to a very slow start, constrained by rain events and wet soil conditions. What effect with saturated soils have on soybean emergence and early growth?

soybeans disease flooded fields saturated soils seedling diseases 

Late planting of soybeans: Management considerations

In areas where soybean planting has been delayed or in double crop systems, producers should consider a few key management practices. Planting soybeans in the right soil conditions is essential for establishing an adequate canopy and improving chances to increase yield potential.

soybeans late planting seeding rate row spacing 

Cut-off dates for XtendiMax, Engenia, and Tavium applications

Don't forget that the 2021 labels for over-the-top applications of herbicides containing dicamba have cut-off dates. For soybeans, this cut-off is just around the corner. Applications to cotton have a few weeks longer. Read more in this short article from Sarah Lancaster.

soybeans dicamba label requirements cotton herbicide application dicamba-resistant 

Identifying nutrient deficiency symptoms in soybeans

This time of year, soybeans may begin showing signs of chlorosis or other leaf discoloration. There may be many causes of discoloration. Nutrient deficiencies are one possibility. Learn more in this article from soil fertility specialist, Dorivar Ruiz Diaz.

soybeans nutrient deficiency chlorosis 

Estimating soybean yield potential

Many producers like to estimate the yield potential of their soybeans well before reaching the end of the season. Estimating final yield in soybeans before harvest can be a tedious task, but a simplified method can be used for just a basic yield estimate.

soybeans yield potential yield estimates 

2021 Kansas Soybean Yield and Value Contests

The Kansas Soybean Association is calling all soybean farmers in Kansas to enter their competitive soybean crop into the Kansas Soybean Yield Contest by December 1. The Kansas Soybean Value Contest that analyzes protein, oil, and other soybean qualities is also open for entries.

soybeans Soybean Yield Contest  

Tips on scouting for Dectes stem borer in soybeans

The Dectes stem borer is native to Kansas and can infest soybeans. Insect damage to the stem makes the plant very susceptible to lodging, which may result in harvest losses. Scouting for Dectes while the soybeans are still green can assist in helping avoid more yield loss at harvest.

soybeans insects dectes stem borer 


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