Learn about late season soybean diseases, yield monitor calibration tips and guidance on corn drydown and harvest timing in this August issue of Walking Your Fields newsletter.
Articles are written by DuPont Pioneer agronomists in South Dakota and distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Northern Minnesota and northern Wisconsin Walking Your Fields newsletter-AugDuPont Pioneer
This August issue of Walking Your Fields contains the following articles for growers in northern WI and northern MN: corn rootworm damage, late season soybean diseases and corn drydown and harvest timing.
Articles are written by DuPont Pioneer agronomists in Minnesota and Wisconsin and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Eastern MN Walking Your Fields newsletter-AugDuPont Pioneer
Learn more about late season soybean diseases, how to manage prevented plant acres, fall tillage options and yield monitor calibration tips in this August issue of Walking Your Fields newsletter.
Articles are written by DuPont Pioneer agronomists in southeastern Minnesota and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
ND & Northern MN Walking Your Fields newsletter-JulyDuPont Pioneer
This July issue of Walking Your Fields newsletter contains articles about: soybean pests, fungicide applications and the role of water in corn development.
Articles are written by DuPont Pioneer agronomists in North Dakota and northern Minnesota and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Wisconsin Walking Your Fields newsletter-JuneDuPont Pioneer
This issue of Walking Your Fields newsletter contains articles about: late planted forage options, nitrogen management, glyphosate restrictions, cover crop options and soybean planting date.
Articles are written by DuPont Pioneer agronomists in Wisconsin and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Central Minnesota’s Walking Your Fields newsletter-JulyDuPont Pioneer
DuPont Pioneer agronomists talk about soybean aphids, fungicide applications, weed resistance and corn rootworm pressure in this July issue of Walking Your Fields newsletter.
Articles are written by DuPont Pioneer agronomists in Minnesota and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
South Dakota Walking Your Fields newsletter-JulyDuPont Pioneer
Learn more about Goss’s wilt, soybean aphids and the role of water in corn development in this July issue of Walking Your Fields newsletter.
Articles are written by DuPont Pioneer agronomists in South Dakota and distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Managing Phytophthora Root & Stem Rot of SoybeansDuPont Pioneer
Learn how to manage Phytophthora, commonly associated with heavy, poorly-drained or compacted soils. It can weaken or even kill plants at all stages of growth.
Northern Minnesota and northern Wisconsin Walking Your Fields newsletter-AugDuPont Pioneer
This August issue of Walking Your Fields contains the following articles for growers in northern WI and northern MN: corn rootworm damage, late season soybean diseases and corn drydown and harvest timing.
Articles are written by DuPont Pioneer agronomists in Minnesota and Wisconsin and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Eastern MN Walking Your Fields newsletter-AugDuPont Pioneer
Learn more about late season soybean diseases, how to manage prevented plant acres, fall tillage options and yield monitor calibration tips in this August issue of Walking Your Fields newsletter.
Articles are written by DuPont Pioneer agronomists in southeastern Minnesota and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
ND & Northern MN Walking Your Fields newsletter-JulyDuPont Pioneer
This July issue of Walking Your Fields newsletter contains articles about: soybean pests, fungicide applications and the role of water in corn development.
Articles are written by DuPont Pioneer agronomists in North Dakota and northern Minnesota and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Wisconsin Walking Your Fields newsletter-JuneDuPont Pioneer
This issue of Walking Your Fields newsletter contains articles about: late planted forage options, nitrogen management, glyphosate restrictions, cover crop options and soybean planting date.
Articles are written by DuPont Pioneer agronomists in Wisconsin and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Central Minnesota’s Walking Your Fields newsletter-JulyDuPont Pioneer
DuPont Pioneer agronomists talk about soybean aphids, fungicide applications, weed resistance and corn rootworm pressure in this July issue of Walking Your Fields newsletter.
Articles are written by DuPont Pioneer agronomists in Minnesota and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
South Dakota Walking Your Fields newsletter-JulyDuPont Pioneer
Learn more about Goss’s wilt, soybean aphids and the role of water in corn development in this July issue of Walking Your Fields newsletter.
Articles are written by DuPont Pioneer agronomists in South Dakota and distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Managing Phytophthora Root & Stem Rot of SoybeansDuPont Pioneer
Learn how to manage Phytophthora, commonly associated with heavy, poorly-drained or compacted soils. It can weaken or even kill plants at all stages of growth.
Low Tunnel Strawberry Gardening; Gardening Guidebook for the Texas High Plains ~ Texas A & M ~ For more information, Please see websites below:
`
Organic Edible Schoolyards & Gardening with Children =
http://scribd.com/doc/239851214 ~
`
Double Food Production from your School Garden with Organic Tech =
http://scribd.com/doc/239851079 ~
`
Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
`
Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
`
Healthy Foods Dramatically Improves Student Academic Success =
http://scribd.com/doc/239851348 ~
`
City Chickens for your Organic School Garden =
http://scribd.com/doc/239850440 ~
`
Huerto Ecológico, Tecnologías Sostenibles, Agricultura Organica
http://scribd.com/doc/239850233
`
Simple Square Foot Gardening for Schools - Teacher Guide =
http://scribd.com/doc/239851110
Growing Tomatoes in Cool, Short-Season Locations; Gardening Guidebook for Idaho www.scribd.com/doc/239851313 - University of Idaho, For more information, Please see Organic Edible Schoolyards & Gardening with Children www.scribd.com/doc/239851214 - Double Food Production from your School Garden with Organic Tech www.scribd.com/doc/239851079 - Free School Gardening Art Posters www.scribd.com/doc/239851159 - Increase Food Production with Companion Planting in your School Garden www.scribd.com/doc/239851159 - Healthy Foods Dramatically Improves Student Academic Success www.scribd.com/doc/239851348 - City Chickens for your Organic School Garden www.scribd.com/doc/239850440 - Huerto Ecológico, Tecnologías Sostenibles, Agricultura Organica www.scribd.com/doc/239850233 - Simple Square Foot Gardening for Schools, Teacher Guide www.scribd.com/doc/23985111 ~
vegetable seed production being a very importent topic for self sustainability of vegetable in nepal, subash sapkota has present in the topic as a assignment under the course vegetable seed production
Groundnut in India has emerged more as food crop than oil crop, traditionally. With increasing direct consumption, nuts should be safe to eat in terms of pesticides residues. So, good agronomic practices with integrated pest management hold the key. The topic provides information on identification of key pests and IPM package to manage key pests of economic importance in eco-friendly manner.
Wisconsin Walking Your Fields newsletter-AugustDuPont Pioneer
This issue of Walking Your Fields newsletter contains articles about: yield monitor calibration, corn drydown and harvest timing and late season soybean diseases.
Articles are written by DuPont Pioneer agronomists in Wisconsin and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Western MN and eastern SD Walking Your Fields newsletter-AugustDuPont Pioneer
DuPont Pioneer agronomists talk about yield monitor calibrations, corn drydown and harvest timing, and late season soybean diseases in the August issue of Walking Your Fields newsletter.
Articles are written by DuPont Pioneer agronomists in western Minnesota and eastern South Dakota and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Low Tunnel Strawberry Gardening; Gardening Guidebook for the Texas High Plains ~ Texas A & M ~ For more information, Please see websites below:
`
Organic Edible Schoolyards & Gardening with Children =
http://scribd.com/doc/239851214 ~
`
Double Food Production from your School Garden with Organic Tech =
http://scribd.com/doc/239851079 ~
`
Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
`
Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
`
Healthy Foods Dramatically Improves Student Academic Success =
http://scribd.com/doc/239851348 ~
`
City Chickens for your Organic School Garden =
http://scribd.com/doc/239850440 ~
`
Huerto Ecológico, Tecnologías Sostenibles, Agricultura Organica
http://scribd.com/doc/239850233
`
Simple Square Foot Gardening for Schools - Teacher Guide =
http://scribd.com/doc/239851110
Growing Tomatoes in Cool, Short-Season Locations; Gardening Guidebook for Idaho www.scribd.com/doc/239851313 - University of Idaho, For more information, Please see Organic Edible Schoolyards & Gardening with Children www.scribd.com/doc/239851214 - Double Food Production from your School Garden with Organic Tech www.scribd.com/doc/239851079 - Free School Gardening Art Posters www.scribd.com/doc/239851159 - Increase Food Production with Companion Planting in your School Garden www.scribd.com/doc/239851159 - Healthy Foods Dramatically Improves Student Academic Success www.scribd.com/doc/239851348 - City Chickens for your Organic School Garden www.scribd.com/doc/239850440 - Huerto Ecológico, Tecnologías Sostenibles, Agricultura Organica www.scribd.com/doc/239850233 - Simple Square Foot Gardening for Schools, Teacher Guide www.scribd.com/doc/23985111 ~
vegetable seed production being a very importent topic for self sustainability of vegetable in nepal, subash sapkota has present in the topic as a assignment under the course vegetable seed production
Groundnut in India has emerged more as food crop than oil crop, traditionally. With increasing direct consumption, nuts should be safe to eat in terms of pesticides residues. So, good agronomic practices with integrated pest management hold the key. The topic provides information on identification of key pests and IPM package to manage key pests of economic importance in eco-friendly manner.
Wisconsin Walking Your Fields newsletter-AugustDuPont Pioneer
This issue of Walking Your Fields newsletter contains articles about: yield monitor calibration, corn drydown and harvest timing and late season soybean diseases.
Articles are written by DuPont Pioneer agronomists in Wisconsin and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Western MN and eastern SD Walking Your Fields newsletter-AugustDuPont Pioneer
DuPont Pioneer agronomists talk about yield monitor calibrations, corn drydown and harvest timing, and late season soybean diseases in the August issue of Walking Your Fields newsletter.
Articles are written by DuPont Pioneer agronomists in western Minnesota and eastern South Dakota and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
ND & Northern MN Walking Your Fields newsletter-AugDuPont Pioneer
This Aug issue of Walking Your Fields newsletter contains articles about: corn drydown and harvest timing, fall tillage recommendations, corn development and drought effects on soybeans.
Articles are written by DuPont Pioneer agronomists in North Dakota and northern Minnesota and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Eastern MN & Western WI Walking Your Fields newsletter-JuneDuPont Pioneer
This June issue of Walking Your Fields newsletter contains articles about: corn stand evaluation, planting date impact on soybeans, nitrogen loss after rain, and early weed control in corn.
Articles are written by DuPont Pioneer agronomists in Minnesota and Wisconsin and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Wisconsin Walking Your Fields newsletter-JulyDuPont Pioneer
This issue of Walking Your Fields newsletter contains articles about: corn root lodging, soybean aphids and diseases, along with the role of water in corn development.
Articles are written by DuPont Pioneer agronomists in Wisconsin and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Principles and Practices of Organic Pea Seed Production ~ Cornell University
`
For more information, Please see websites below:
`
Organic Edible Schoolyards & Gardening with Children
http://scribd.com/doc/239851214
`
Double Food Production from your School Garden with Organic Tech
http://scribd.com/doc/239851079
`
Free School Gardening Art Posters
http://scribd.com/doc/239851159`
`
Increase Food Production with Companion Planting in your School Garden
http://scribd.com/doc/239851159
`
Healthy Foods Dramatically Improves Student Academic Success
http://scribd.com/doc/239851348
`
City Chickens for your Organic School Garden
http://scribd.com/doc/239850440
`
Simple Square Foot Gardening for Schools - Teacher Guide
http://scribd.com/doc/239851110
Even with proper aeration, grain can only be stored for a limited time. It will deteriorate faster as temperature and moisture content increase. The allowable storage time is based on the length of time corn can be stored before losing 0.5 percent of dry matter. With this amount of dry matter decomposition, it is assumed that the corn loses some quality.
The enormous volume of farm-level data growers now handle—from new precision
ag technologies as well as from traditional information sources—can be unwieldy
and disconnected. Effectively using the data requires the ability to compile and
analyze it to make insightful decisions.
Commodity prices are softening, input costs are on the rise and access to land is a
key concern. To stay competitive, growers must closely manage their operations to
get the most out of every resource.
Growers can’t count on the markets or the weather—except to change. Staying in
business over time means effectively managing the risks growers can control
while minimizing the impact of those they can’t.
Improving sustainability is both a business requirement and good business.
Growers must produce more from every acre while efficiently managing inputs
and being good stewards of the environment.
Northeast MN & northern WI Yields from Your Fields-NovDuPont Pioneer
This is a special edition issue of Walking Your Fields newsletter that contains Yields from Your fields plot results for 2013 in northwest Minnesota and northern Wisconsin.Walking Your Fields is a written by DuPont Pioneer agronomists in Wisconsin and is distributed on behalf of DuPont Pioneer account managers and Pioneer sales professionals.
South central MN Yields from Your Fields -Nov13DuPont Pioneer
This is a special edition issue of Walking Your Fields newsletter that contains Yields from Your fields plot results for 2013 in south central Minnesota.
Walking Your Fields is a written by DuPont Pioneer agronomists in Minnesota and is distributed on behalf of DuPont Pioneer account managers and Pioneer sales professionals.
Southern WI Yields from Your Fields - Oct 2013DuPont Pioneer
This is a special edition issue of Walking Your Fields newsletter that contains Yields from Your fields plot results for 2013 in southern WI.
Walking Your Fields is a written by DuPont Pioneer agronomists in Wisconsin and is distributed on behalf of DuPont Pioneer account managers and Pioneer sales professionals.
The DuPont Pioneer Drought
Research Council (DRC) published its first article this month titled ‘The U.S. Drought of 2012 in Perspective: A Call to Action’. The paper outlines recommendations for improving food security, including an emphasis on research collaborations; objective, science-based regulations; and, appropriate funding for public agricultural research.
http://www.sciencedirect.com/science/article/pii/S2211912413000370
Western MN and eastern SD Walking Your Fields newsletter-JulyDuPont Pioneer
This issue of Walking Your Fields newsletter contains articles about: foliar fungicide applications, Goss’s Wilt, Pioneer Field360 and a GDU update for the area.
Articles are written by DuPont Pioneer agronomists in western Minnesota and eastern South Dakota and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Western MN and eastern SD Walking Your Fields newsletter for JuneDuPont Pioneer
This issue of Walking Your Fields newsletter contains articles about: corn stand evaluation, herbicide timing, glyphosate considerations, nitrogen loss and a GDU update.
Articles are written by DuPont Pioneer agronomists in Minnesota and South Dakota and are distributed on behalf of DuPont Pioneer account managers and Pioneer sales reps.
Field Facts: Corn Replant Guide Southern USDuPont Pioneer
This guide can be applied to corn grain production in the southern U.S. for high, moderate and low expected yield levels for key hybrids grown in the south.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
2. Yield information from monitors and GPS is an
extremely important tool that you can use to make deci-
sions in your business. However, it is only as accurate as
the calibration and taking time to do this will help elimi-
nate poor information later. Here are some tips to remem-
ber when looking at yield monitor calibration:
Clear memory card and back up previous year’s data
Calibrate multiple times throughout the growing sea-
son to ensure consistent data
Make sure your load is enough weight (3,000-6,000
pounds)
Make sure you have multiple loads at different
speeds (3.5, 4.5, 5 etc.)
Calibration loads should be in a uniform area of the
field, a good representation will improve accuracy
Differences in moisture and grain quality will require a
new calibration to be accurate
In a year with variability, taking time to calibrate will pay big
dividends!
Many corn fields in the region were planted mid to late
May or early June, which means they will likely need until
early October to reach maturity (black layer). As growers
hope for a late autumn to get field work done before the
snow flies, now is the time to weigh the cost of in-field
grain drydown versus using artificial drying at harvest.
There are three main factors that influence the rate at
which corn dries, physiological maturity, weather and the
corn hybrid. Corn that matures earlier typically dries fast-
er due to more favorable drying conditions earlier in the
harvest season. On the same note, later maturing corn
has fewer warm days to aid drying and will dry slower. In
a typical year, corn that matures on September 15 may
require only about 10-15 days to reach 20 percent mois-
ture, while corn that matures on September 25 may need
30 days to reach the same moisture level (D.R. Hicks,
2004). Drydown is linked to heat units (GDUs). Under
ideal weather conditions, corn may lose up to one point of
moisture per day. As the days get cooler, GDUs de-
crease and drying slows. A rule of thumb is that 30 GDUs
are required to lower the grain moisture each point from
30 percent to 25 percent. Forty-five GDUs per moisture
point are required from 25 percent to 20 percent. Also
consider that we typically expect no more than about 10
GDUs per day in late September, and only about 3-5
GDUs per day in late October. That means that field dry-
ing of corn may take two to three times longer for late
maturing fields. Drydown is also hybrid specific. The
amount, thickness and tightness of husks affect drydown;
the more insulated the ear, the longer it takes to dry. Up-
right ears are more prone to capture moisture in the
husks. Lastly, corn with moderate test weight dries faster
than hybrids with heavier test weights.
The ideal harvest moisture for corn is between 22-25 per-
cent. Waiting for corn to dry to 18 percent moisture in the
field certainly saves on the energy bill; but it also increas-
es the likelihood of excess harvest losses due to stalk
lodging, ear drop and detrimental weather all of which
can affect your bottom line. In addition, there may not be
enough heat units this fall for in-field drydown. Ohio State
University research indicated no additional in-field grain
drying occurred after early to mid-November (Minyo,
Geyer & Thomison, 2009).
“Phantom yield loss” may also encourage growers to har-
vest at slightly higher moistures this fall. Growers occa-
sionally report harvesting part of a field early and finishing
the field when it is dryer, only to discover the later har-
vested portion of the field is yielding several bushels less
per acre than the first harvested corn.
Purdue University confirmed these claims indicating that
grain corn dried in the field has the potential to yield one
percent less per point of moisture. For example, corn that
was 200 bushels/acre at 28 percent moisture would only
yield around 180 bushels/acre at 18 percent moisture if
left in the field too long. This research also confirmed that
the ideal moisture level for corn grain harvest is 25 per-
cent. Harvesting wetter than that can damage kernels
and of course significantly increase drying costs (Nielsen
et al., 1996).
Calibrating Yield Monitors
Corn Drydown & Harvest Timing
Estimated Cost to Dry Corn to 15% Moisture
Harvest
Moisture
LP
gal/bu
LP
$/gal
LP
$/bu
Drying Cost
$/bu*
Drying cost
$/point*
35 0.472 1.35 0.637 0.645 0.032
30 0.337 1.35 0.455 0.461 0.031
25 0.219 1.35 0.296 0.299 0.030
20 0.109 1.35 0.147 0.149 0.030
Based on: NCH-51 Hybrid Maturity-Energy Relationships in Corn
Drying, Iowa State University; *assumes electrical cost of $0.115/kwh
Delaying harvest may increase risk of lodging, ear drop or kernel loss
and result in reduced yields. Photo: DuPont Pioneer
>>
3. Artificial drying costs will vary this season depending on
LP gas prices, which currently range from $1.25 - $1.40
per gallon across the Midwest. Nonetheless, harvesting at
a higher moisture level this year may increase grower
profitability, specifically when growers anticipate medium
to high harvest losses. The table on page two was devel-
oped by Iowa State University, and customized by
DuPont Pioneer agronomists to illustrate different drying
scenarios and costs based on an average LP price of
$1.35/gallon.
If you have questions about moisture levels, drydown and
harvest, contact your local sales representative for assis-
tance.
(Sources: Minyo, Geyer & Thomison. 2009. How will delaying corn har-
vest affect yield, grain quality and moisture? Ohio State University Ex-
tension. Nielsen et al. 1996. Kernel dry weight loss during post-maturity
drydown intervals in corn. Purdue University.)
The results of the fall 2011 tillage are evident in the 2012
crop. Particularly in corn on corn cropping systems. Fall
2013 is shaping up to be a similar environment and may
present some of the same opportunities and challenges.
It may be helpful to review and adapt for this environ-
ment.
Challenges of 2011 Primary Tillage
Hard, dry soil led to equipment stress, frequent
breakdowns, and dramatically increased wear on soil
contacting blades and points.
Primary tillage standards on many makes and models
are set up on wide spacing (30”). To increase residue
coverage many are equipped with wings on the
points. These wings on wide spacing can cause large
boulders of soil and eventually seedbeds that exhibit
areas of loose dry soil intermingled with firm moist
conditions.
Too much speed. To fracture the soil and form con-
sistently sized chunks that are field level, we may
need to reduce ground speed to 4.5 to 5 mph. Each
soil and type of tillage equipment is different, but
slowing down may improve the results.
Opportunities for Tillage in a Dry Soil
Primary tillage is most effective at lifting soil compact-
ed layers and producing an even shattering effect
across the width of the tillage tool.
Soil smearing with ground contacting points is mini-
mized
Leveling devices on primary tillage tools may work
more effectively.
Appropriate levels of residue incorporation can be
accomplished which increases soil to residue contact
enhancing residue breakdown without layering resi-
due and causing seedling residue interactions (corn
on corn concern)
Residue sizing and corn root ball management can
be more effective with the use of corn head choppers
or stalk choppers combined with vertical tillage tools
prior to primary tillage.
Deep tillage will not ‘dry out your soils’.
Make every attempt to incorporate and reduce large
residue for next spring planting.
Will Fall Tillage be Similar to 2011?
Large depressions from primary tillage. In this case there is
a 12” difference between the high and the low behind the
digger. In a spring like 2012 where the conditions were dry
this may lead to areas of dry loose soil slumping into the
depressions in contrast to the firm moist areas. This can
lead to planter performance issues on planting depth and
seed drop due to engagement of gauge wheels. This then
leads to differing emergence rates due to seed-to-soil con-
tact and water uptake into the kernel. In a wet spring and
summer, these factors are less of a problem.
Photo: Kimberly Ag Consulting. Maxwell, IA.
Variable ear placement and ear sizes based on emergence
timing and interaction of seedlings with residue in the de-
veloping root system. By digging up runt plants and com-
paring to larger better developed neighbors you can start to
understand causes of delayed emergence or delayed
growth. Photo: Kimberly Ag Consulting. Maxwell, IA.
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