Northern Walking Your Fields

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February 2013 special edition for Northern Business Unit of DuPont Pioneer.

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Northern Walking Your Fields

  1. 1. February 8, 2013 - Special Edition Optimizing Soybean Planting Populations in 20132012 Weather Conditions & Effects on Seed Quality Handling This Year’s Soybean SeedHigh temperatures and drought conditions throughout the A hot dry finish to the 2012 soybean seed crop has resulted inpod and seed development stages resulted in some seed lots soybeans with lower moisture than historical averages andwith: with thinner seedcoats resulting in fragile soybeans that are  Irregularly shaped seed more easily damaged by handling.  Wrinkled seed coats  Other physical effects Steps to reduce handling damage:  Fragile seed coat  Minimize the distance soybeans fall to hard surfaces, less than 1 foot is most desirable.These industry-wide problems have resulted in germinations  Consider a belt-type conveyor and try to avoid anythat are 5 to 10% lower than normal in some cases. Standard type of auger systemwarm germinations for much of the seed will be 85% this year,  Reduce handling if possible and minimize box to boxcompared to 90% normally. In addition, specific lots of some movements. Avoid rough handling of seed bags andvarieties will be offered at lower germination labels to help large drops.customers avoid supply shortfalls.  Keep seed treaters running near capacity when treating.Seeding Rate & Planter RecommendationsTo calculate a seeding rate, Use the following equation: EXAMPLE:Seeding Rate = Seeding Rate for a 150,000 desired plant population= Desired Plant Population 150,000(% Germ) x (% Pure Seed) x (% Live Seed Emergence*) 85% Germ x 98% Pure Seed x 97% emergence*Normal emergence factor 95-97%, potential = 187,500 seeds per acre planting ratetough/crusted environments factor 90-92% Quick view seeding rate adjustment chart below for 30” row spacing assuming normal emergence environment. Desired Final StandGerm % 120,000 130,000 140,000 150,000 160,000 170,000 90% 141,000 152,000 164,000 175,000 187,000 199,000 85% 150,000 161,000 173,000 186,000 198,000 210,000 80% 158,000 171,000 184,000 197,000 210,000 224,000Summary  Several factors influence seeding rates such as row spacing, seed germination rate and emergence environment.  Utilize seed treatments to minimize additional factors of stand establishment.  Read the seed tag for each bag or unit and make seeding rate adjustments accordingly.  Consult your Pioneer Sales Representative for additional field to field recommendations.
  2. 2. Northern BU 2013 Corn Rootworm Management Recommendations What we Currently Know What we Currently Do Not Know  Resistance can lead to trait failure and result in sig-  How widespread is Cry3Bb1 (VT3P) resistance? nificant yield loss from rootworms. EPA has noted problem fields in MN, IA, IL, NE3  Field evolved western corn rootworm resistance to  How long will corn rootworm traits last? Monsanto VT3, VT3P (Cry3Bb1) products has been documented.1,2,4  What are the long term rootworm population trends?  No documented resistance to the Herculex® RW (HXRW) insect protection trait in Pioneer® brand  How rootworm resistance could spread? Optimum® AcreMax® 1 (AM1) Optimum AcreMax  Cross resistance to other traits? Xtra (AMX) and Optimum AcreMax XTreme (AMXT) products.  No documented cross-resistance between Monsan- to VT3, VT3P products and HXRW rootworm trait in Pioneer AM1, AMX, AMXT products.2,4  Pioneer believes any messaging that all single-trait below ground products are failing is misleading. 2013 CRW Management Options *CRW pressure is based on 2012 beetle and root ratings observations Report any performance problems to your Pioneer sales representative.1 Gray 2012 http://farmprogress.com/story-resistance-cry3bb1-confirmed-illinois-0-624972 Gray 2012 Continuing Evolution Confirmed of Field Resistance to Cry3Bb1 in Some Illinois Fields by Western Corn Rootworm, University of Illinois Bulletin, Issue No. 20, Article 2/August24, 2012.3 USEPA 2011 “Updated BPPD IRM Review of Reports of Unexpected Cry3Bb1 Damage” http://www.regulations.gov/#!searchResults;rpp=10;po=0;s=EPA-HQ-OPP-2011-09224 Gassmann et al. 2011 “Field-Evolved Resistance to Bt Maize by Western Corn Rootworm” www.plosone.orgHerculex® Insect Protection technology by Dow AgroSciences and Pioneer Hi-Bred. ® Herculex and the HX logo are registered trademarks of Dow AgroSciences LLC. Liberty®, LibertyLink andthe Water Droplet Design are trademarks of Bayer. ® YieldGard, the YieldGard Corn Borer design, and Roundup Ready are registered trademarks used under license from Monsanto Compa-ny. Agrisure® is a registered trademark of, and used under license from, a Syngenta Group Company. Agrisure® technology incorporated into these seeds is commercialized under a licensefrom Sygnenta Crop Protection AG. Poncho ® and VOTiVO® are registered trademarks of Bayer.The DuPont Oval Logo is a registered trademark of DuPont.®, TM, SM Trademarks and service marks of Pioneer. ©2013 PHII.
  3. 3. ADDRESS SERVICE REQUESTED PRESORTED FIRST-CLASS MAIL U.S. POSTAGE PAID PHI CUSTOMER INFO WALKING YOUR FIELDS® DuPont Pioneer Sales & Marketing PO Box 466 Johnston, IA 50131 Follow your Pioneer Agronomist @PioneerSDakota @PioneerNDakota @PioneerMN @PioneerWI This Walking Your Fields newsletter is brought to you courtesy of your Pioneer Sales Representative and DuPont Pioneer Account Manager.WALKING YOUR FIELDS® newsletter is brought to you by your local account manager for DuPont Pioneer. It is sent to customers several times throughout the growing season, cour-tesy of your Pioneer sales professional. PIONEER® brand products are provided subject to the terms and conditions of purchase, which are part of the labeling and purchase docu-ments. ®, TM, SM Trademarks and service marks of Pioneer. © 2013 PHII. The DuPont Oval Logo is a registered trademark of DuPont.

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