Pioneer Troy
@deutmeyer_troy
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Pioneer Field Agronomist NE IA
Dyersville, IA
Joined May 2019
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Coolest fungicide trial ever Travis McCormick @ Ag Solutions, Coulter IA used JD Exact Apply 2 spell w/fungicide "Does it Pay". Imagery shows unsprayed areas almost perfectly Very little disease in this field, so all about plant health in this case. Check out the yield diffs!!
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Want 2 b a better user of N in your corn crop? Check your soil test K levels! Great research by OSU showing what we see in customers fields. Low K requires more N & still delivers less bushels. Raised 44 more bu on 100 LESS lbs of N b/c of better K levels. 0.85 units of N/bu.
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From Pottebaum Crop Services near Manchester, IA... Never seen 24 around b 4 in all my 25+ years in the business.... That area will be a honey hole for yields in 2022. P0529Q... new for 2023
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Maybe we should throw the soil thermometer away & just plant whenever the soil is fit. Pics from a field yesterday planted just hours before the April 15th cold rain/snow. Beautiful stand!! Sometimes things just work out!!
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16 years ago today I started with Pioneer as a Field Agronomist. Thrown a pair of keys, computer and phone and told “Go support Pioneer sales reps and customers”. A lot of worn thru work boots, 750,000+ miles of windshield time, quite a few wrinkles on the face and even a few
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Cupped leaves, drawstring leaves.. must be dicamba off target injury right??? Nope.. these are Xtend soybeans that have had NO herbicide applications all year including a pre (not recommended!). Environmental conditions caused this.. Don't jump the gun on the diagnosis!
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Dave’s Feed Store… Luxemburg, IA. After last nights storms. Local winds clocked at 102 mph!! Apparently the only empty grain bin in the corn belt according to the USDA on farm stocks reports!!!
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Bean size difference from 2023 (left) & 2022 in NE IA.!! Same plot, same variety. 2022 yield was 83.6. Bean size is a large contributor to yield. Differences like this is why pod counting can be so inaccurate.
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What growth stage (V stage) is this corn? Correct answers in drawing for a bag of corn. Perfect size for post herbicide app. Another week will be starting 2 enter time of ear size determination. Leaf collar (V stage) is more precise staging than plant height.
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Tillage time of year, lots of questions on high speed disks. Looking @ fields past couple years these things can leave TERRIBLE horizontal hard pans. Check out picks from this week. Dug up 1 plant soil across whole row came up one chunk. Almost no roots penetrated tillage depth!
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2023 Key Agron Lesson
#4
: Soil Tests vs Service Call
2 years soil tests showing service call fields (ie issues) vs good performance continues trend
Matches 1,000's of samples that went into Yield Pyramid results & all the Yield x Fertility studies done by numerous IA agrons
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$.90 premium 4 Sep vs Oct delivery customers asking about black layer. Quick way to check. Pull whorl out & c how many leaves left around tassel. 4 every leaf add 2.5 days to tassel, add 55-60 days 2 black layer. Pic shows 7 leaves. 17.5 days to tassel, plus 55-60=Sep 15th.
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B sure 2 use leaf collar staging for herbicides restrictions rather than plant height. Cold weather and compacted soils have plants shorter than usual.. plants in picture r all V4-5
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Pioneer sales reps and employees spent last week taking yield estimates across the state. More than 5100 samples taken!! It is a challenging year with finding "representative fields" and representative locations in an individual fields. Attached are the results.
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2023 Key Agron Lesson
#3
: Stratification
Marion Calmer's 2nd year data. 9 bu/ac on soy & 22 bu/ac corn.
IA data,not just no-till w/strat issues
As we push towards 300 bu/ac & 100 bu/ac field avg in corn/soy deep banding nutrients likely be needed.
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2023 Key Agronomy Lesson
#7
: Uniform Soybean Emergence
Fellow agronomist Bill Long did a soybean emergence study & found similar results 2 my study a couple seasons ago.
Plants that have delayed emergence yield less!! Strive for uniform emergence in soybeans just like corn!!
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Chart makes it easy to see why folks are saying NE IA is the garden spot of IA. Let’s count our blessings & b thankful. Some parts are 120th+ driest in 130 years.
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Some experienced 100+mph winds this evening as the cold front moved thru. Down corn and "willowed" corn is pretty widespread. How much yield loss will this create?? Nobody knows for sure but the closer to pollination the greater the yield loss.
Willowed (arched) corn before
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Soybean harvest moisture can have large impacts on final yield. Multi-year study shows being aggressive with harvest pays. Likely going to be green stems to chew thru w/13-14% soybeans but yield increase should justify the extra fuel and combine hours from slower ground speed.
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As herbicide applications get delayed, be sure to check labels for growth stage/height restrictions!!! Some of the early planted corn is getting to some label limits!
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Soybean emergence trials hand harvesting nearly complete. 3rd & final year showing same results as previous two years. Uniform emergence in soybeans critical to optimizing plant to plant yield. Data from a couple replications in one field.
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DEAD OR ALIVE??? A way to check if your waterhemp is going to perish if it looks alive yet when it was sprayed a couple weeks ago....
Pull the plant out and break the stem in half were the soil line was. If brown and mushy then it is having the nice slow painful death it
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Please b patient/courteous/respectful 2 service providers. From sprayer/fertilizer applicator, tender man, mechanic, etc they r running as hard . Most left home b4 kids were up & will miss activities so u can get your crop in. Look them in the eye & give a sincere thank you!!
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Friday Trivia Question: Corn loses little yield potential under moderate drought stress up to what growth stage (V or R stage)?? After this stage daily drought stress yield loss increases dramatically. Correct answers put into drawing for crop scouting lunch with your crew!
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As fungicide apps get going next week, b sure 2 check water pH & lowered if necessary. Chart below shows how pH can DRASTICALLY impact the half life. pH of 7shows if the solution is in a tank for 3 hours, you have half the AI left when you mixed it!!
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Friday Quiz Day... What is causing all the waterhemp right in the row vs almost none in middle of row?? Correct answers will be put into drawing for a Crop Scouting Lunch for your crew....
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How much are we losing? Graphic shows yield loss in killing frost at "dent" stages. Won't lose all of this if don't make it to Sunday, a large chunk could be realized in rapid death Ex 1/4 milk line (R5.25) has 25-35% loss may b possible 2 lose half, 12-17% in extreme situations
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Some calls on “dicamba” injury on Enlist soybeans. Pics show “drawstring” effect, which is different from dicamba cupping. Drawstring is caused by environmental/weather impacts or Group 15 herbicides like Dual/Warrant/Zidua. Typically no yield impact
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What's your 2022 fertility plan? B sure to keep your focus on the bottom layer of the Pioneer Yield Pyramid! Check out our NE IA study with 44 fields & how the bottom layer influenced corn & soybean yields! Build from the bottom up!
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Genetics (yield & agronomics) always trump traits when making hybrid/variety selections.. but sure is nice when you can get the best of both genetics & traits in one package. ISU Nashau Research Farm replicated trial results from 2022. Pioneer A Series Soybeans have that combo!
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ISU Extension Nashua site yesterday looking @ reduced stature corn from Pioneer. Drought stress already shortened corn up, still large differences showing. Pic on concrete shows Brand X short corn on left, Pioneer reduced stature middle & current hybrid right. Coming in 2025!!
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Many fields in NE IA running out of gas. Nitrogen deficiency most prevalent where precipitation exceeded 20". Side dressed fields appear to be doing much better... Have even ran into some side dressed fields showing deficiency. Picture below is in same field, about 30 yards
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Five county soil fertility study shows huge yield advantages for having your KEY three soil fertility components (pH, P and K) in check BEFORE spending money on "add ons" and foliar feeding! Check out the ppm differences in the 4 yield breakouts.
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Early look @ leaf defoliation work Pioneer Agronomists r conducting. From Alex Woodall by Clarion showing how reduced photosynthesis increased kernel abortion. Shows all leaves matter!!
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Corn field doing the wave?? Is this costing me yield?? Very common to see this right now driving in the country side. It occurs when the planter is crossing over the anhydrous applied at an angle. Wave is 90 degrees from planting direction. 2022/2023 yield study from hand
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Differences of starter and no starter. Large differences in biomass, almost no difference in growth stage. Combine will determine if there is an ROI… or just pretty corn. Good trial.
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Can I afford to put on P&K for the 2025 crop?? Been a big question the past couple weeks as commodity prices continue to fall.
Should the question be... Can I afford NOT to put on P&K for the 2025 crop??
Ag View Pitch Podcast last week and thoughts on this.
Keep in mind it's
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??? from many... Shouldn't nitrogen deficiency be worse over top the tile lines where nitrate leaves thru tile drainage vs in between the tile lines??
While there is nitrogen loss thru tile drainage and leaching.... denitrification (conversion of nitrate to nitrogen gas)
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Corn Rootworm (CRW) are out in full force so please be checking your fields in the next couple days. Y drop insecticide applications can still be made! Blue bucket no Y drop insecticide.. green bucket Y drop insecticide. Huge difference in CRW count for about $10 per acre.
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2023 Key Agron Lesson
#8
: Horizontal Tillage Layers In Drought
Yield service calls w/horizontal tillage layers reduced root development past 4"
Disk type tools along w/"vertical till" machines more disk than vertical till were most of the calls. B sure 2 get out of cab & eval
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Between now & end of pollination corn will use over 40% of it total water use! A very important 3-4 weeks coming.
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Data showing why sticking with your original hybrid plan until at least May 20th. Use your grain price & drying costs to determine your own "switch date". Plan A is the best plan, try not to use emotion when to switch to Plan B.
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Best fungicide to use??? Different trials give different results but IMHO the most important factors are
1) Application job
2) Application timing
Link to Crop Protection Network ratings... as you can see many products will work well on our disease in NE IA. Focus on GLS, Tar
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Pic from a disc bine showing the alfalfa weevil that is out there in some fields. If you are one of these we will need to keep a close eye on regrowth!! You may need to spray almost immediately after cutting.
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Updated IA Tar Spot map. Next week should b good time 4 fungicide & adult management apps, likely timed well together this year! If you have very uneven tasseling be sure to leave out the surfactant/COC/MSO or use ones that are APE/NPE free to avoid arrested ear syndrome!!
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I stand corrected... some low lying areas we do have corn & soybeans that didn't survive the frost. Call your local Pioneer Sales Rep for replant. It's likely the drought stress lowered sugar levels and allowed the level of damage for the temps observed.
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Dry soybean yield loss?? Chart below shows the yield loss from "water". Doesn't take into account additional shatter loss at head. On a positive what we are losing in soybean yield at 9% will likely make most back on lower LP bill with corn rapidly drying down.
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NH3 streaking once again common this spring. Research from last yr shows this DOES cost yield. Early available N & sulfur (planter applied or weed/feed) typically eliminates this. Elemental sulfur does not!! In this case pretty corn does have an ROI $$... results from last year.
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How long until the corn crop is mature or we start chopping??? Many fields are just starting to dent which means about 3 weeks to chopping and about 5 weeks until mature. When corn starts to dent we still have about 35% of the yield yet to put into the ear!!!
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February soybean seed treatment trial was harvested yesterday and to no surprise.. the early planting when it doesn't get frosted off is the highest yielding.
The February plant date out yielded the April plant date by four bushels per acre and came in at 92.7 bu/ac. This plot
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Feb 26th Seed Treatment plant date update. Compared plants from Feb 26th and April plant date. Feb plant date has about 95-100k stand... April has around 140-150k stand. You can see how the lower stand induced branching. Feb plant date has 165 pods and the April plant date
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Kernel Flex... No it is not some new Yoga move. It's the ability of today's Pioneer hybrids to continue to add kernel depth/size/weight LATE into the grain fill period.
This is the main reason why in NE IA recommended seeding rates have gone from 36-37K 8-10 years ago to
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Green corn and brown husks is a beautiful thing this time of year. It has been a very stressful season once again but some pockets by the Grace of God had things pretty good!!
Late season staygreen is a function of management, genetics and Mother Nature coming together to pack
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If u r not going to apply P & K fertilizer this fall due to high prices b sure to at least get your soil pH corrected. Too many fields look like the one below, the soil sample booklet showed the huge yield losses with improper soil pH & no lime was applied. Below 6.3 needs lime!
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Many corn fields are just hitting black layer... ie maturity. Green corn and brown husks means the corn was healthy til the end and maximized grain yield.
At maturity corn is around 30-32%... based on temps you can expect drydown rates as shown below. After a hard run on
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Do you have your fall fertilizer plans in place?? Having VRT Rx's at your retailer ready to go before harvest starts makes for getting fertilizer on a field a simple phone call "Just finished harvesting the Jones Farm... go spread it"..
With tight margins be sure your Yield
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Some feel their pre herbicide didn't work well this year... A field I was in yesterday where the sprayer got a couple rows too wide for a bit. They bring great value!! Would be huge yield loss if the whole field looked like the skip!!! Many were sprayed in mid to late April,
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How much water does the crop need yet? Many corn field in NE IA in the late dough early dent stage... so a couple more rains are definitely needed!! Many soybeans in the R5.5 stage..
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Rye termination rule of 60/40.Above 40 degrees 4 2-3 nights & highs above 60 4 2-3 days b 4 spraying along with couple warm days after herb app. Friday rye 4-5" top growth 12"+ rooting depth, lots of roots to kill! Planted Oct 2nd. Don't cheat on the gly rate in early spring!
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7am soil temps. 1/4”-1/2” frost in some bare spots. First 24-48 hours corn and soybeans want a warm drink (45+). Planting this week with predicted temps will be extremely high risk
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Most Pioneer products keeping staygreen/stalk integrity & fighting off Tar Spot vs competitors. Tar Spot can shut down susceptible hybrids in less than 14 days. Talk 2 your local Pioneer sales rep about getting industry leading protection for 2022! Brown hybrids in pic r brand X.
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2023 Key Agron Lesson
#5
: No-Till/Cover Crops Can Yield
Highest weigh check NE IA came from no-till/green planting topped the at 355 bu/ac!
3-4 years cover cropp seems 2 b "turning point" & soil biology has changed.
Requires excellent planter setup & N/S on planter
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IA Pioneer Rep Yield est, 25 bu/ac-320+ bu/ac. Variability like nothing I haven't seen in my 3 decade career. Rate at which crop declined in 4 days like nothing I have ever seen. Estimates taken over 10 days ago b4 record heat. Obviously LOT of yield came off since then
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What can I cut back on in 2025 to improve cash flow???
Common question I have been getting the past few months. One thing to be sure NOT to overlook is your soil pH levels. Soil pH determines nutrient availability & optimal soil pH allows for maximum microbial activity. pH
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How much can waiting to plant an extra day or two really matter??? Corn yield by plant date shows the first acres after a weather event can be costly!!! There was a fourpeat last year..... Same result each time.
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CHECK EVERY HYBRID WITH A SCALE TO VERIFY YIELD MONITOR!!!! Article from Ken Ferrie.
Calls already on "poor hybrid performance" only to find that the "calibrated" yield monitor is 10-15% different from the hybrid it got calibrated on!!
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Corn turning black?? Numerous calls on this. The black mold is known as saprophytic fungi. Feeds on dead plants. Flares allergies but thats about it.. Check out an article from.... you guess it. Another drought year.... 2012!
...
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Leaf removal study R3 stage complete. Treatments are 1) All leaves below ear, 2)ear leaf only & 3) all leaves above ear. Repeat at R4 & R5. Compare yield diff to aid in predicting yield loss from leaf area loss due to disease like Tar Spot
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Soil variability and more specifically drainage variability causing large differences in late season plant health and also ear size.
Poorly drained/compacted soils showed significantly more nitrogen deficiency/crown rot than where drainage was adequate and the same nitrogen
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Questions on water needs of beans. C chart below.. Many soybeans in late R3/R4.. so needing 9-12" of water to finish out crop. This is why they say August makes soybeans!! They handle early season stress very well.. Once R2 and after is when most vulnerable to drought stress
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With the deep snow wildlife is really struggling to find food. A 5 gallon bucket of corn will feed a group of pheasants for over a week! Help them out if you can.
As farmers we are caretakers of all God's creatures, not just the ones that make us $$...
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"Ugly duckling" 4 corn as transitions over 2 nodal roots. Nutrient def, root restrictions & residue make a stand that once looked perfect 2weeks ago not very attractive. Anhy knife streaks & where planter crossed the anhy pics below. Planter applied N & Sulfur eliminates these.
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Not the fall to let corn dry down in the field. Stalk integrity on even the best hybrids has been compromised by the drought. This field will likely be 230+ bu/ac but took the stalk reserves to do it. Check your fields!!!
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Corteva Disease Tracker model most recent update. Shows GLS and Tar Spot risks are increasing but not at a threshold level yet. Moisture this year, possibly be calling for fungicide applications by VT/R1. Will post weekly.
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“Halo” effect showing up as usual this time of year on ILeVO treated soybeans…Just like a minor sunburn for us. Good news is these soybeans will have a “halo” of industry leading protection from SDS and SCN!!! Up and off to the races….
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Seeing differences showing up in Tar Spot fungicide timing study. 1/2 milk line 102 CRM. In about 1 month will see what yield & moisture differences are to determine ROI of treatments. Drone applied
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Kernel size plays huge role in yield. If est. yields contact local Pioneer rep 4 "divide by number". Pioneer "kernel flex".
14x35 long x 32k ears/90 (old # used)=174 bu/acre
14x35 long x 32k ears/65 (likely with kernel in pic)= 241/bu/acre.
Kernel almost as big as my thumbnail!
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Folks wondering about "planting b 4 the rain" Going 2 b warm rain & stay warm. If long range forecast accurate, corn will b up b4 soil dries out to form crust. 10 day ECMWF & 16 Day GFS showing lot of H2O potentially coming. Keep planting if soil fit!
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Happy Birthday America from the American born & owned seed company!
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Uniform corn emergence is critical for maximizing yield. NE IA studies show all plants need to emerge in 2-3 day window. After that serious reduction in ear/stalk size. Check your success by flagging plants every 24 hours. Pic shows what happens each day emergence is delayed!
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Redneck soybean stand assessment. Quick "boot scouting" can give you an idea of where stand counts are without stretching the tape/chain every time. Just keep walking & stopping. On 30" rows if below 5 plants per boot and 2.5 on 15" rows you are getting close to that 80K mark
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Finding female CRW beetles getting close to laying eggs. The next 5-7 days will be great timing to get the insecticide on to prevent egg laying and protect the 2022 corn crop!!
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2.5 acre soil sampling grid has ONE data point every 330'.. yield map has a data point every 15'. A well calibrated yield monitor gives you a great tool for building variable rate fertilizer prescriptions if you are looking to replace crop removal!!
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Lots of calls on "black spots" on corn.. Photo shows Physoderma Brown spot.. which is not a yield robbing disease. Do not be alarmed seeing this on your corn plants!!! This IS NOT Tar Spot like some are saying..
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Frosted corn from Monday morning showing most is going survive. Looks ugly from road however most plants have numerous green leaves below the damage. Split plant to c if growing point (where knife is) and inside of whorl still green. Yield hit unknown.
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Rotary Hoe decision??? Do the "poke test" with your index finger. If there is moderate resistance or you can't poke your finger down the seed slot, a corn or soybean plant can't get thru either. If you think you "MAY" have to hoe THEN GO DO IT!.. Don't wait another day to two.
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Right on time... GDU and fireflies/lightning bugs said it was time to dig. The little buggers are there!! This was a non-traited hybrid with planter insecticide oops strip...
Excited to evaluate Pioneer Vorceed Enlist corn again this summer with RNAi technology. More to
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Enough sulfur for your alfalfa? A good test would be to place 0.5 lb of AMS in a 5'x5' area before the rain tomorrow. Then see how second crop responds. If like the pics below then make adjustments to your sulfur program.
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To all of those who gave the ultimate sacrifice... we are eternally grateful...
From all of us at Pioneer...
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P23A15's showing why its the
#1
planted soybean in the state of IA.. Check out all the flowers!
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What could have been??? Couldn't help but think last evening leaving a pop trial most the cobs have 12-15 kernels that aborted due 2 drought. On a 16 around ear equates to another 70+ bu/ac @ 32K ear count & 80k kernels/bu. Don't make 2 drastic of changes based on this season!
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To those who made the ultimate sacrifice... we honor and remember you.... Always!
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Volunteer corn in SB
1) Causes sig yield loss
2) Provides food source 4 CRW larva
3) Provides pollen/food source 4 CRW beetles
Vol. corn will pollinate later than surrounding corn, attracting CRW adults & many will lay eggs in SB, negating rotation
Finding 100+ CRW larva on some
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Frost damage 4 some of u in low lying areas have black look 2 them from frost last night. Most fields top 2-4 leaves nipped. lower part of plant is fine, as should b the growing point. As u can see from pics, no waterhemp were injured during the filming of this event!
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Chart showing nitrogen conversion @ different soil temps. Anhydrous & Manure need 2 b applied so can't wait forever... Just keep in mind days above 60, days above 50 & days above 40. As you can see conversion doesn't come to a crawl until under 40 degrees. Stabilizers can help!
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Results from last weeks Pioneer Sales Rep pre Pro Farmer Crop Tour! As expected variability across every field, county, plant date, fertility program, etc. Fields range from last years highs 2 lows not seen since 2012. Heat this week could easily take #'s down another 5-10%.
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SCN continues to be challenging pest in NE IA. Great study by counterpart 2 west Bill Long showing power of Peking Cyst beans in managing SCN pops. Now is great time 2 sample & visit w/your local Pioneer Sales Rep on Peking source options! Possbile 1 bu yield loss per 1000 eggs
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Many customers asking will the rain forecasted this week help or is it too late??
Absolutely!!!
Both crops are needing about 6" of water yet before maturity to maximize yield!
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Pioneer Agronomists estimates of planting progress. Conditions were excellent. Will see if Mr. Jack Frost stays away in May..
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Age old question... what is the economic optimal corn harvest moisture?? Not many true studies out there that take in all the actual costs and losses in the field.
I thought this one was interesting... The forecast looking like drying corn may not be an issue in another couple
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