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Evaluation of Soybean Varieties Resistant to Soybean Cyst Nematode in Iowa - 2016
Use of resistant soybean varieties is a very effective strategy for managing soybean cyst nematode (SCN). Numerous SCN-resistant soybean varieties are available for Iowa soybean growers. This report
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Frogeye Leaf Spot
This publication examines the symptoms of frogeye leaf spot in soybean, describes how frogeye leaf spot differs from several other diseases that may look like it, and provides management recommendatio
Iowa Crop Performance Tests -- Soybean 2016
Results of soybean yield trials that are conducted annually by ISU and the Iowa Crop Improvement Association. Provides information farmers need to select the best varieties or brands for their product
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2017 Herbicide Guide for Iowa Corn and Soybean Production
This publication provides information on product and management updates, the role of preemergence herbicides in glyphosate resistant crops, corn and soybean herbicide effectiveness ratings, herbicide
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2016 Yellow book for soybean aphid
This publication provides soybean aphid treatment recommendations and application rates, based on research conducted at two northern Iowa research farms in 2016. In addition to treatment techniques, t
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Soybean cyst nematode-resistant soybean varieties for Iowa
Details on selecting and managing soybean cyst nematode-resistant varieties.
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Soybean Growth and Development - Soybean Staging
Soybean Staging - Intended to be used as a quick reference handout for soybean staging. It is a supplement to the larger Soybean Growth and Development publication. This publication is availa
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Soybean Growth and Development - Key Growth Stages
Key Growth Stages - Intended to be used as a quick reference for key times in soybean growth and development. It is a supplement to the larger Soybean Growth and Development publication.
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Soybean Stem Zone Lines: Fact and Fiction
This publication discusses zone lines in soybean stems, and addresses a common misconception about the cause of these symptoms. This publication was created by the Crop Protection Network, which inclu
Soybean seed treatments: Questions that emerge when plants don't
This publication answers some common questions that farmers or agribusiness may have when poor stand establishment occurs in fields planted with treated seed. This publication was created by the Crop
Hail on Soybean in Iowa
This publication shows how to obtain an estimate of the potential yield loss from hail injury to soybean. It describes the methods used to quantify injury on various plant tissue, as well as soybean g
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Corn and soybean Field Guide
This revised, 158-page pocket-sized guide (3-3/4" x 6") combines the Corn Field Guide and Soybean Field Guide in one publication for ease of use by corn and soybean farmers, agronomists, and
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A Farmer's Guide to Soybean Diseases
A Farmer’s Guide to Soybean Diseases provides an overview of the soybean diseases that currently occur in the United states and Canada, with an emphasis on diagnosing diseases in the field. Informatio
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Charcoal Rot
This publication examines the symptoms of charcoal rot in soybean, describes how charcoal rot differs from several other diseases that may look like it, provides other scouting information, and manage
The Effectiveness of Neonicotinoid Seed Treatments in Soybean
Beginning in the early 2000s, neonicotinoids were increasingly used as seed treatments for field crops. More than 80 percent of corn and 40 percent of soybean acres nationally are planted with neonico
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Crop Production Clipboard
Crop production clipboards provide a handy way to keep key reference information with you in the office helping customers or scouting in corn and soybean fields. Calibration and conversions supplement
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Scouting for Phytophthora Root and Stem Rot in Soybean
Scouting for Phytophthora Root and Stem Rot in Soybean is a publication with information on how to identify, scout for, and manage the disease. The publication was developed by the Crop Protection Net
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Weed Identification Field Guide 2nd Edition (Unit=44)
The Weed Identification Field Guide, 2nd Edition, is a revised and expanded pocket-sized guide (3-3/4" x 6") for farmers and agronomists to use for weed identification in Iowa corn and soybe
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Soybean Seedling Diseases
This publication examines the symptoms of important soybean seedling diseases, describes how other plant problems may resemble seedling diseases, and provides management recommendations. The publicati
White Mold
This publication examines the symptoms of white mold (Sclerotinia stem rot) and provides management practices. The publication was created by the Crop Protection Network, which includes authors from l
Stem Canker
This publication examines the symptoms of stem canker, describes how stem canker differs from several other plant problems that may look like stem canker, and provides other scouting information. The
Pod and Stem Blight and Phomopsis Seed Decay
This publication examines the symptoms of pod stem blight and phomopsis seed decay, describes how pod stem blight differs from several other plant problems that may look like pod stem blight, and prov
Soybean Vein Necrosis Virus
This publication examines the symptoms of soybean vein necrosis virus (SVNV), describes how SVNV differs from several other plant problems that may look like SVNV, and provides other scouting informat
Soybean Growth and Development
This publication can help soybean producers achieve better yields. It includes photos of soybean vegetative and reproductive stages and updated information about soybean plant growth and management.
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Scouting for Pythium root rot in Soybean
The Scouting for Pythium  root rot in Soybean card is a 6-page, tri-fold pocket-sized publication (3-3/4" x 6") that outlines the symptoms, scouting, management, and disease cycle of Py
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ISU FARM Research Report 2012
Progress report on 2012 on-farm research trials conducted through Iowa State University's Farmer Assisted Research and Management (F.A.R.M.) program.
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Scouting for twospotted spider mites in corn and soybean
 The Scouting for twospotted spider mites in corn and soybean card is a 6-page, tri-fold pocket-sized guide (3¾" x 6") containing scouting information, a description, and images of inju
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Influence of Tillage on Soybean Production in Iowa
Tillage helps manage residue, controls weeds, incorporates soil amendments and is used extensively to prepare a seedbed for planting. However, research shows that tillage has little effect on soybean
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Selecting Soybean Varieties
Selecting the right combination of high yielding genetics and agronomic traits is the first management decision toward a successful soybean crop. This publication provides the reader with several tool
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Intermediate Row Width Can Increase Soybean Profits
Midwest research has documented that soybeans yield better when grown in 15 inch rows. However, there are limitations; some diseases of soybean can eliminate potential yield gains. This publication di
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Planting Soybean for High Yield in Iowa
Deciding when to plant soybean is an important management decision that greatly impacts yield. This publication discusses the potential yield increases from early planting and potential yield loss fro
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Understanding Soybean Plant Population Recommendations for Iowa
Concerns over rapidly escalating seed prices have caused farmers, agronomists, and seed suppliers to revisit soybean planting rates. This publication discusses optimum soybean planting rates in Iowa a
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Inoculant Use on Soybean Seed
Inoculating soybeans with products containing the bacterium Bradyrhizobium japonicum is considered an inexpensive management practice to increase yield. However, yield gain from inoculants on soybean
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Humic and Fulvic Acids and Their Potential in Crop Production
Humic and fulvic acids may have uses in Iowa’s large-scale production systems to improve seedling health and plant response to stress. This publication discusses the benefits and limitations of these
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Staging Soybean Development
Accurate growth stage determination of soybean is essential to accurately apply pesticides and determine potential yield loss from environmental stress. This handy publication uses high quality images
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Soybean Nutrient Needs
Maintaining a fertile growing environment is a risk management strategy that produces higher yield and healthier plants that better manage stress. This publication outlines crop nutrient removal rates
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Soybean Response to Drought
Drought is a serious but infrequent stressor affecting Iowa soybean production. This publication describes how soybean plant growth and development and nitrogen fixation respond to water deficit condi
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Recognizing Challenges to Iowa’s Annual Cropping Systems
Iowa’s soybean and corn cropping systems are among the most productive in the world yet, producing consistently high yields remains uncertain. This publication discusses possible solutions to problems
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Corn & Soybean Management: Insects and Diseases Series CD
This CD contains full versions of selected Crop Adviser Institute (CAI) learning modules in the Pest Management and Crop Management areas. You will have full access to all materials except the final C
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Frost Damage to Corn and Soybeans
Learn about the characteristics, uses and handling and storage of frost-damaged corn and soybeans.
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Speed Scouting for Soybean Aphid
The Speed Scouting for Soybean Aphid card is a tool for soybean growers to monitor soybean aphid populations in fields using the Speed Scouting technique. The card has both instructions for the Speed
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Early Season Soybean Scouting
The Early season soybean scouting card is a record keeping tool that outlines diseases, insects, and disorders that occur to seed, seedlings, and young soybean plants from shortly after planting throu
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Mid-season Soybean Scouting
The Mid-season soybean scouting card is a record keeping tool that outlines diseases, insects, and disorders that occur to soybean plants during the late vegetative through R2 growth stages.
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Late Season Soybean Scouting
The Late season soybean scouting card is a record keeping tool that outlines diseases, insects, and disorders that occur to soybean plants during the R3 (pod fill) through R8 (maturity) growth stages.
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Field Crop Insects
Field Crop Insects contains descriptions and color images of more than 55 pest and beneficial insects, as well as information on insect life cycle, damage, scouting and management options. There is al
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Soybean Aphid Field Guide
A revised, 52-page pocket-sized guide (3-¾" x 6") for soybean producers and soybean agronomists containing soybean aphid biology, scouting and management information for Iowa. Includes color
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Soybean Diseases
Soybean Diseases contains descriptions and color images of 25 diseases of soybean, as well as information on disease development and management. There is also a brief overview of the types of pathogen
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Weed Identification Field Guide 2nd Edition
The Weed Identification Field Guide, 2nd Edition, is a revised and expanded pocket-sized guide (3-3/4" x 6") for farmers and agronomists to use for weed identification in Iowa corn and soybe
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Maximizing Profitability on Highly Erodible Land in Iowa | Conservation Reserve Program: Issues and Options
Options in grass may be the most profitable for CRP land when the long term cost of erosion is considered. Get the details on six income options: CRP, two rotational grazing options, two crop options
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Limiting Field Operations - Farm Energy
Certain field operations are required in modern crop production. But 100 percent fuel savings results when equipment stays parked in the machine shed and a trip across the field is eliminated. Find ou
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Host Plant Resistance to the Soybean Aphid
This fact sheet will address how host plant resistance affects the soybean aphid, and summarizes field performance data collected from Iowa.
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Soybean Drying and Storage
Find out about soybean harvest moisture, storage moisture, drying tips, high-temperature drying, low-temperature drying, and more.
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Soybean Brown Stem Rot
Learn about symptoms and management practices for soybean brown stem rot, an economically important disease of soybeans in the North Central U.S. This peer-reviewed publication replaces PM 890.
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Soybean Seed Health
Seed-borne bacteria and viruses can affect soybean seed health. Visual examination and blotter tests described here can be used.
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Soybean Cyst Nematode (SCN) Management Recommendations -- Iowa State University Plant and Insect Diagnostic Clinic
April 2008 revision of soybean cyst nematode management recommendations.
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Legume Living Mulches in Corn and Soybean
These mulches not only provide erosion control, but also fix atmospheric nitrogen. Learn more about five possibiities and their management.
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Small Grain Cover Crops for Corn and Soybean
Learn about species selection, management, and pros and cons of these cover crops.
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1% Linolenic Soybean Oil, A Soybean Solution to Trans Fat
Read about this no-trans-fat soybean oil, an alternative to hydrogenated oils.
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Phytophthora Root and Stem Rot of Soybean
Learn about causes, symptoms, resistance, and chemical control of Phytophthora root rot of soybean, a widespread soybean disease in Iowa.
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Soybean Maturity Groups
Maturity group adaptations where soybean are grown in the United States. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgemen
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Soybean Seedling
Soybean Seedling with plant anatomy labeled on a V1 soybean plant. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and
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Soybean leaf with folded leaflets
Soybean leaf with folded leaflets. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Cond
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Soybean germination and emergence
Soybean stage progression from planting through emergence and cotyledon stage. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowl
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VE and VC stages - Soybean
Soybean at the VE and VC stages. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Conditio
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V2 plant - Soybean
Soybean at the V2 stage. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Conditions to
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Soybean roots showing nodules
Soybean root showing nodules. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Condition
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V2 root nodules with sliced nodule - Soybean
Soybean at V2 stage showing root nodules including a nodule cross section. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgeme
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V4 plant - Soybean
Soybean at the V4 stage. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Conditions to
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V6 plant - Soybean
Soybean at the V6 stage. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Conditions to
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Soybean development and timing of growth
Development and timing of soybean vegetative growth, flowering, pod development, and seed filing. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase
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Soybean flowering on racemes
Soybean flowering on racemes. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Condition
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Fourth node of R3 plant - Soybean
Fourth node from the uppermost node of soybean at R3 stage. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreemen
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R4 plant - Soybean
Soybean at the R4 stage. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Conditions to us
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Dissected young soybean pod
Young dissected soybean pod. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Conditions
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Sequence of early pod development
Sequence of early pod development. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Condit
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Floral cluster on stem - Soybean
Floral cluster on main stem. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Conditions
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Fourth node pod and bean of R5 plant
Dissected pod from the fourth uppermost node of soybean at the R5 stage. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledge
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Sequence of pod development through maturity
Sequence of soybean pod development, seed filling, and maturity. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and ag
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Pod and bean of R6 plant
Soybean pod and bean development at the R6 stage. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the
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Pods with enclosed beans
Soybean pods and enclosed beans from the R6 stage to harvestable beans. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgemen
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R7 plant - Soybean
Soybean plant at the R7 stage. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Conditio
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R7 Stem - Soybean
Soybean plant at the R7 stage showing main stem and branches. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agree
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R8 plant - Soybean
Soybean plant at the R8 stage. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement of the Terms and Conditio
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Total plant dry weight - Soybean
Soybean accumulation of total plant dry weight by plant component. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and
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Total plant dry weight of MG 2.5 and 3.5 - Soybean
Soybean accumulation of total plant dry weight for 2.5 and 3.5 maturity group in Iowa by plant component. All digital media is copyrighted by Iowa State University Extension and Outreach. Each p
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Total plant dry weight early and late May - Soybean
Soybean accumulation of total plant dry weight for early and late May planting dates in Iowa by plant component. All digital media is copyrighted by Iowa State University Extension and Outreach. E
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Total percent of nitrogen - Soybean
Nitrogen uptake accumulation by soybean plant component. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreeme
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Total percent of potassium - Soybean
Potassium uptake accumulation by soybean plant component. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreemen
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Total percent of calcium - Soybean
Calcium uptake accumulation by soybean plant component. All digital media is copyrighted by Iowa State University Extension and Outreach. Each purchase includes your acknowledgement and agreement
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Growing Organic Soybeans on Conservation Reserve Program Land
Organic soybeans may be a very lucrative crop for Iowa farmers. Learn about the market, land preparation, planting and weed management, and the harvest and subsequent crops.
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Soybean Bacterial Blight and Brown Spot
Identification, scouting, and management information for two of the Midwest's most common soybean diseases, bacterial blight and brown spot.
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Soybean Replant Decisions
This full-color publication will help you understand causes of stand reduction, the relationship between yield and plant stand, estimating these stands, and reaching a replant decision.
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Soybean Damping Off
Learn about soybean damping off – its causes, symptoms, occurrence, and management.
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Reducing Herbicide Rates for Narrow-Row Soybeans
Reducing herbicide rates to take advantage of narrow-row soybeans’ earlier canopy may be a viable option for growers. See how using less than the recommended rates of herbicides with narrow-row soyb
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Scouting for Soybean Cyst Nematode (mini poster)
For effective Soybean Cyst Nematode management, scout fields before symptoms appear. This 8 X 11 inch mini poster will provide necessary steps.
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Soybean Cyst Nematode
Learn about symptoms, life cycle, spreading, and management of soybean cyst nematode (SCN), a parasitic roundworm that attacks soybean roots.
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Crops: Harvesting Corn and Soybeans - Disaster Recovery Series
Provides tips for harvesting in less than ideal conditions to limit harvest losses and maintain acceptable grain quality.
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Minimizing Mechanical Damage to Soybeans
Basic information on why mechanical damage occurs to soybean seed and how to minimize it.
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