Pioneer gdu calculator. 5/16 planting - 7/20 silking, 9/15 black layer. Pioneer gdu calculator

 
 5/16 planting - 7/20 silking, 9/15 black layerPioneer gdu calculator Step 2: Determine economic factors

Learn more about how to find the right seed for your needs. Marginal to poor ground: 80,000 – 90,000 seeds/acre. The GDU calculator displays accumulated and daily GDU. ‘D’ represents the diameter of the auger, ‘P’ signifies the pitch, ‘N’ is the number of turns or flights of the auger, and ‘R’ denotes a conversion factor based on the type of material being conveyed. ST. Does this sound right? GDU’s accumulation? - gregrundell: 9/3/2022 20:32. It signifies the depth of the water that is set to. We use a combination of recorded weather data, a 7-day future forecast, and 30-year historical weather information to highlight the season-to-date as well as a forecast of how the rest of the season will progress. The calculator does indicate what we’ve experienced in being -120 GDU’s behind average and -300 compared to 2021. 11 blacklayer date and that is being conservative. Heavy 16 Calculator Online. RE: GDU Calculator Factors - 1680farmer: 9/3/2023 15:51;Using the Prodiamine 65 WDG Calculator: Enter the area to be treated (2,500 sq. Get more information from. There is gonna be a decent amount of corn here that I just CAN NOT see making it to maturity. Our agronomists are more than crop doctors. Corn height is less accurate than leaf number in determining growth stage. 5 gallons of water per day. Heavy 16 Calculator Online. J. Pioneer GDU Calculator Online. Simplify complex calculations today!. 11 blacklayer date and that is being conservative. The PrecipEstimator and Growing Degree Unit (GDU) Calculator. A prodiamine calculator is a precise digital tool designed to compute the exact amount of prodiamine required for a specified area. Pioneer Growing Degree Unit Gdu Calculator By Randall Parrish On Dribbble Gdu Calculator Im App StoreOutstanding performance across well-drained soils. These products have been approved for import into key. Dyna-Gro S46EN29 Pioneer P49T62E Terral REV 4990E Dyna-Gro S46ES91 GoSoy 463E20S NK S46-E3S Progeny P4775 E3S Xitavo X0 4681E Armor 47-E02 GoSoy 463E20S NK S46-E3S Progeny P4775 E3S Xitavo X0 4681E Armor 47-E02 Dyna-Gro S46ES91 GoSoy 482E18 USG 7479ET Innvictis B4649E Merschman Seed 2046E. Also select from 11 base. How much rainfall do you get each summer, and what. Let’s walk through a practical example. ft). Corn Growth Stages and GDU Requirements A certain number of growing degree units (GDUs) are required by a corn plant to reach maturity, regardless of the number of calendar days it takes to accumulate. Ad Get 12 Digit Calculators today w Drive Up or Pick Up. Agric. Peat Moss Calculator Online. Herbicide Mixing Calculator Online. Pioneer GDU Calculator Online. Plugging these values into our formula gives: BALEW = 4 * 2 * 2 * 10. Detailed Explanation of the. Fox Moss Calculator Online. However, corn is barely starting to dent. Corn growth stages from emergence to maturity. Download GDU Calculator and enjoy it on your iPhone, iPad and iPod touch. GDD are sometimes also called growing degree units (GDU), heat units, or thermal time. Determine the amount of Growing Degree Units for your crops. 706 views 4 years ago. 50131 - Johnston, Iowa. Best Genetics. RATINGS: 9 = Outstanding; 1 = Poor; PAA = Predicts Above Average; PA =Since 1926, Pioneer has delivered the products, technologies and support farmers need. Peat Moss. If you know your current stand's plant density, enter it below. Heavy 16 Calculator Online. . In general, drying corn from 30% down to 25% moisture requires about 30 GDUs per point. Growing Degree Unit (GDU) Calculator. Learn more. Pro Farmer. This calculator allows users to input the number of hay bales, the weight of each bale, and the duration for which the hay will be stored. Example of Heavy 16 Calculator. 5 and 45°C). Use Tool. Peat Moss. So, the weight of the hay bale would be approximately 168 pounds. However, corn is barely starting to dent. Also select from 11 base. Do this for each of. A greenhouse roof calculator is a specialized tool designed to assist growers in planning and optimizing their greenhouse roofs. Pioneer GDU Calculator Online. When the maximum air temperature is greater than 86°F, we set the value at 86° in the equation as. aintfarminfun. About Pioneer. By accounting for factors like stalk density , stalk length, and animal consumption rates, it offers precise estimates, enabling farmers to make informed. The "factory" will be smaller and even if field conditions improve, yield will likely be reduced. The PrecipEstimator and Growing Degree Unit (GDU) Calculator - available on Pioneer. Fig. Fox Moss Calculator Online. Peat Moss Calculator Online. Forums List -> Crop Talk. 50131 - Johnston, Iowa. Counted on for everything from seed selection through harvest, our local experts are backed by a global agronomy. Pioneer ® brand food-grade corn products are designated as food-grade yellow and food-grade white. Improve productivity and maximize yield potential with the right tools and services from Pioneer. 7, 54. 7:59-62", often used to interpret between early April and early June for the north and central Corn Belt. Pioneer GDU. 5 °F. Pioneer GDU Calculator. 11 blacklayer date and that is being conservative. Soybeans typically require between 90 and 130 GDUs to emerge, depending upon soil type. Peat Moss Calculator Online. Find My Local Pioneer Team. Latest version of GDU Calculator is 1. This tool is not a calculator for Pioneer GDU (Growth Degree Day) calculator, which is a tool for estimating corn yield based on. 11 blacklayer date and that is being conservative. Why Wyffels. Corn dry down rate is tightly linked to daily growing degree unit (GDU) accumulation. Learn more about their high resolution weather data to track. Daily Temp = (High Temp. So you can pick the trait that’s best for your farm, knowing it’s packed with genetics proven to perform in this region. The kernels are drying down from the top, where a small hard layer of starch is forming. pioneer. Herbicide Mixing. Inputting these into the formula, the GI would be computed, which would then. Please enter a valid location. Despite evidence of experimentation with. Use this Pioneer tool to estimate corn yields prior to harvest. Here, ‘Effective Depth’ represents the approximate depth the dipsy diver achieves underwater. Each day, record the high and low temperatures. The V6 stage occurs at approximately 475 GDUs. log <some_dir> # write errors to log file gdu -i /sys,/proc / # ignore some paths gdu -I '. The direction was intended to make agriculture feel a bit more like a modern technology company, focusing on content and data with purposeful emphasis to showcase the brand. They’re ready to help you select products with superior yield potential and provide year-round service and expertise. Farm Basics 994 Growing Degree Days Air Date 4 23 17 Youtube Web Growing Degree Days Calculator Maximize your return on investment with a minimum amount of time. 5/16 planting - 7/20 silking, 9/15 black layer. They’re strategic advisers with unmatched field experience who help you capitalize on new yield opportunities and make decisions that boost profitability. The calculator operates based on the sugar content of the sap and the total volume collected. Detailed Explanation of the Calculator's. Where: Y is the Saturated Unit Weight of Soil, measured in g/cm^3. Learn More. Skip Navigation. If you know your current drying costs, enter it below. com Contact your local Pioneer sales representative for seed recommendations and service needs. Suppose you have a desired application rate of 20 units per acre and a chemical concentration of 10%. 4-blacklayer I used 15 gdus/day which may be wishful thinking. E. Adjustments have been made to accommodate varying target. My Account. 900 GDU per gram would have 450 mg of GDU activity. 1189 High-Moisture Corn Inoculant. Keywords: map fertilizer, dap fertilizer, dap map, gdu calculator, pioneer gdu calculatorThe rotational grazing calculator is a vital tool for modern-day farmers seeking sustainability and optimum livestock production. of top 25 2023 demand planned A-Series Enlist E3 varieties through. 35% passing the #10 sieve but retained on the #40 sieve. View our soybean line-up. V1-V5 - At V1, round-tipped leaf on first collar appears, nodal roots elongate. Wide swings in soil temperature and/or ponding, saturated soils can stop the germination process and set up replant situations. Pioneer Seeds United States. Map local performance information to maximize harvest results. Herbicide Mixing Calculator Online. Looks like an Oct. Posted 7/30/2023 22:51 (#10338101 - in reply to #10337638) Subject: RE: Who has a good online GDD heat unit calculator that's free? I use Ag PhD GDU calculator app: Who has a good online GDD heat unit calculator that's free? - thepawpawman: 7/30/2023 18:45. A Plant Water Calculator is a specialized tool that calculates the exact amount of water a specific plant requires over a given time interval. View previous thread :: View next thread. Mid-April to May. Ray Massey of the University of Missouri provide an analysis and algorithms to determine the Silking and Black Layer dates based on accumulated GDDs since planting and the. 35% passing the #10 sieve but retained on the #40 sieve. Checked some 109 day May 17th planted corn yesterday and then ran Pioneer GDU calculator. Visit the Corn Yield Estimator. 4) x 10 gallons = 0. GDU/gram is another measurement of protein digestion (in this case gelatin) by an enzyme, and is a different way to show how much protein an enzyme can digest in a specific time under specific conditions. Determine the average daily temperature by adding the daily high temperature and low temperature together and dividing by two: Ave. By understanding the intricacies of carbon emissions on farms, we are better equipped to make environmentally conscious decisions. United Stated. This tool is not a calculator for Pioneer GDU (Growth Degree Day) calculator, which is a tool for estimating corn yield based on weather data. Message and data rates may apply. WDS is the total weight of dry soil, measured in grams (g). This Growing Degree Unit (GDU) calculator will allow you a glimpse into the future to see how your crop will progress throughout the year. »»Use agronomy tools like the PrecipEstimator, GDU Calculator and Growth Stage Estimator. (4) Click on any graph line for number estimates. Demonstrating the Square Bale Calculator in Action. United States. Reproductive Corn Growth Stages. 50131 - Johnston, Iowa. Corn Growth Stages. Pioneer GDU Calculator. GDU-Tech Co. GDU Calculator; Corn Replant Calculator; Yield Calculator; Grain Drying Calculator; Why Wyffels. It’s an important tool corn growers can use to plan for harvest, storage and marketing opportunities. Use these interactive guides to see how a corn plant develops during the vegetative (VE – VT) and reproductive (R1 – R6) growth stages. The raw daily data used for this application can be downloaded from here . Enter Location. Knowing the relationship between GDU accumulation and corn development, and the estimated number of days to reach a certain growth stage, can. Detailed Explanation of the Calculator’s Working. 50131 - Johnston, Iaway. The relationship of GDU accumulation and corn development, along with utilizing the estimated number of days to reach a certain growth stage, can help predict when important growth stages will occur. Peat Moss Calculator Online. Steward EC is a group 22 insecticide with up to 14 days of residual control according to the manufacturer. With you from the word go. 025 pounds. (Example #2: We have four speakers of different values: two 8 ohm and two 16 ohm speakers, all wired in parallel. Calculate Alfalfa Savings. You simply input the date when the soybeans were sown or transplanted and the days it takes for your soybean variety to reach maturity. Suppose you want to determine the concentration of calcium (Ca) in your nutrient solution, and your desired concentration is 150 ppm. Evaluate the effect of planting date on the number of days required to reach the R1 growth stage (beginning flowering) and days from R1 to R6 (full seed) growth stage among different soybean maturity groups. Consider a soil sample with: 15% passing #200 sieve. By dividing the weight of cheese by the weight of milk and multiplying by 100, the calculator outputs the cheese yield as a percentage. Herbicide Mixing Calculator. Address: University of Florida 1741 Museum Road, Gainesville, FL 32611 Phone: (352) 294-6742 Email: cfraisse@ufl. Herbicide Mixing Calculator Online. ) You would enter on your calculator:Aerator Size (CFM or LPM) = Aeration Capacity (CFM or LPM) / Aerator’s Oxygen Transfer Rate. The lime stabilization calculator works by evaluating the soil’s weight and the percentage of lime required. Herbicide Mixing. Pioneer GDU. P. For best results, make sure to. 7:59-62", often used to interpret between early April and early June for the north and central Corn Belt. With data input on the yield and the respective conversion rate, the calculator provides an accurate representation of the CO2 production. 11G22 Silage Inoculant. T&D Enterprises · June 25, 2021 · · June 25, 2021 ·The calculator operates based on the Avocado Irrigation formula. Armor 47-L10 Stine 47LF32 Pioneer P45T39L Croplan LC4814 Delta Grow DG4781LL Pioneer 45L57 NK S47-F6L Cerdenz CZ4748LL Armor 47-Z01 Progeny P4565 LR Cerdenz CZ 4539GTLL Armor 495L Dyna-Gro S48LL23 Progeny P4819 LL Food-Grade Corn. For the Corn GDD tool we use the 86/50 method (also called Modified GDD or Corn GDD) since it only allows GDD to be accumulated when temperature conditions are optimal for corn development (above 50°F but below 86°F). Looks like an Oct. It aids in accurate seed sowing, reducing wastage, and ensuring optimal plant growth. The direction was intended to make agriculture feel a bit more like a modern technology company, focusing. Preserve. IEM :: NWS COOP Growing Season Data. 5 GDD (°F). Skip Navigation. The Pioneer one seems to be busted since they updated it recently. When the calculator processes this data, it evaluates the differential reflection values from the plants’ surfaces. LumiGEN Seed Treatment. ‘Bed Area’ refers to the surface area of the ground where the substrate is spread, usually measured in square meters. g. The bar at the bottom of the screen tells you the total disk usage, and the file count. In this case both constraints are applied. Edited by FlatlandAgII 9/14/2021 07:24V3 - V5 Stages*. Herbicide Mixing Calculator. GDD or GDU = (Daily Maximum Air Temperature + Daily Minimum Temperature)/2 – 50. Now free to downloadJust doing some gdu calculations on some of my corn that was planted on May 16 using the pioneer gdu calculator. This process involves a comparison of daily maximum and minimum temperatures to a base temperature, specific for a particular crop, above which development will occur. Peat Moss Calculator Online. Bromelain can come in various strengths, and weights per serving in a formula, affecting the values shown on the labels. Use Tool. Calculator Locations Guides. e. Table 3: Cropping rotation Kevin is considering for the future. 2204 Griffith Dr. By considering the plant's water use rate and the duration, this calculator provides precise watering instructions, eliminating guesswork and promoting plant vitality. Using the formula, you can calculate as follows: Desired Volume of Herbicide Solution (in gallons) = (2% / 40%) x 10 gallons = (0. Determine the amount of Growing Degree Units for your crops. Actively growing seeds should have visible growing. 5 (water requirement per plant) = 125 gallons per day. Skip Navigation. The goal is to ensure maximum light penetration and optimal conditions. What does GDD mean? Each crop requires exposure to a certain amount of Growing Degree Days (GDDs) or heat units to complete its life-cycle. Calculating growing degree units for corn uses a minimum daily temperature of 50°F and a maximum daily temperature of 86°F with a. Pioneer GDU Calculator Online. The command to scan a folder is similar to the one we used above, type GDU. P1089amxt. The Calculator is an essential tool for geotechnical engineers and soil scientists. (2) Move the green slider to set plant date. 8K subscribers. Actively growing seeds should have visible growing. Track GDU accumulation on your farm and compare total and year-to-year GDUs. Herbicide Mixing Calculator Online. Results show total GDUs and Year-To-Year Comparisons change by date. 5 gallons. Most years I lose about half my crop to it. Pioneer's site 576 gdus to date. ) (a. At Wyffels Hybrids we realize it’s not just One Big Thing we do differently than our competition it’s all those 100 Little Things we do just a little bit better that make all the difference. ) (), a finding supported by evidence from both the temperate highlands of the Colorado Plateau and the lowland deserts of southern Arizona (8–12); a recent study suggests an inland, rather than coastal, Mexican route (). Contact your seed brand dealer or refer to the Bayer Technology Use Guide for. 05)] The calculator performs this calculation and provides the seeding rate in lbs per acre. (2) Move the green slider to set plant date. The Corn Growing Degree Day decision support tool allows one to choose any Corn Belt county, enter the planting date and hybrid maturity, and generate a graph that shows projected GDD accumulations through the season, including the date on which you can expect that hybrid, planted on that date in that county, to mature (achieve black layer). Peat Moss Calculator Online. Reply HELP for help or STOP to cancel at any time. Thats the Hook FIO the growing degree days - Tara Farms: 8/4/2013 11:05. ) At R5, all or nearly all kernels are dented or denting. The calculator uses these values to determine the sprayer output per acre, ensuring that farmers can apply their chosen liquid at the most efficient rate and coverage. At Wyffels Hybrids we realize it’s not just One Big Thing we do differently than our competition it’s all those 100 Little Things we do just a little bit better that make all the difference. Heavy 16 Calculator Online. H. Peat Moss Calculator Online. Where: PY is the Potato Yield (tons/hectare) WP is the Weight of Potatoes harvested (tons) A is the Area of harvest (hectare) To calculate potato yield, divide the weight of potatoes harvested by the total area. Enter Location. Growth stage prediction may only apply to Mississippi Delta or a location at similar geographic latitude. It includes various wood products, such as lumber and. Aeration Capacity: It represents the amount of aeration your. Prod. "Graph" tab not so much. Download a seed guide for Pioneer brand corn products informed by agronomists who know your area. Those early day corns are a flint type usually, and that means the cob size does not flex and add more rows and kernels in a good year. Designations indicate product is also suitable for the following market: HAE – High Available Energy (Pork & Poultry Feed); HTF – High Total Fermentables (Dry-Grind Ethanol); HES – High Extractable Starch (Wet Milling); WX – Waxy; WH – White food corn; YFC – Yellow food corn; AQ – Optimum® AQUAmax® product; BMR – Brown MidRib. High Yields. there is 99 day in the field above this that was planted 2 days prior and doesn't look nearly as good. Calgary, Alberta (T2P1M4) Calgary, Alberta (T2P1M4). Related ReferencesGDU Calculator; Corn Replant Calculator; Yield Calculator; Grain Drying Calculator; Why Wyffels. By V2, plant is 2 to 4 inches tall and relies on the energy in the seed. Growing Degree Unit (GDU) Calculator. Warmer, moist conditions for the first 24-48 hours after planting can mitigate. The end date is inclusive to the data presented. com has on offer for the 2019 growing season. In general, drying corn from 30% down to 25% moisture requires about 30 GDUs per point. g. The majority of their products are photographed with RED cameras including the new RED Komodo. From optimizing indoor farms to aiding research, its value in understanding and harnessing light for plant growth cannot be overstated. The group 6 soybeans suffered frost damage because they flowered too late. Growing Degree Unit (GDU) Calculator (1) Enter postal code for field location. 11GFT Grass/Cereal Fiber Technology. S. Peat Moss Calculator Online. Modern CDJs gives you the ability to DJ with either the digital screen or the. Use Tool Corn Yield Estimator Use this tool to. Looks like an Oct. 9 Using the formula, the yield grade comes out to be a certain value, which then helps him assess the profitability of his crop cultivation. CDJs are more complete. Herbicide Mixing Calculator Online. Plant and ear height. (2) Move the green slider to set plant date. There are many ways to calculated GDD. Click on the above image for a larger view. IMPORTANT: Trait rating scores provide key information useful in selection and management of Pioneer ® brand products in your area. This Growing Degree Unit (GDU) calculator will allow you a glimpse into the future to see how your crop will progress throughout the year. Let’s take example #2 from earlier to show how you can easily find any parallel speaker load using a calculator. Walnut Tree Value. Plant when soil temperatures reach 60 to 65 degrees Fahrenheit for 3 consecutive days (usually 30 days after last frost). In this example, you’ll need 20 oz of pre-emergent herbicide. Learn more. Gleis GDU accumulation on your farm real compare total GDUs and year-to-year comparisons with the Growing Degree Unit Calculator. 7, and 38 bushels per acre, respectively. 50131 - Johnston, Iowa. Peat Moss Calculator Online. Fox Moss Calculator Online. Suppose you have a cornfield with 10,000 plants per acre, each plant having an average of 2. It provides 10-year averages for field-level locations, as well as summaries for the previous. ,Ltd 21TOPS Computing Power Camera Multi-machine Relay Networking 63mins Max Flight Time Millimeter Wave Radar Barrier Avoidance Megapixel Infrared Camera Professional &Powerful High-end, Professional UAV Pioneer FLAGSHIP WORKPIECE, BORN FOR HIGH INDUSTRIAL EFFICIENCY Facebook@GDU GDU. Herbicide Mixing. Result: The calculator will display that you need 4. This tool also provides scouting tips and identifies when common pests may cause injury to corn plants. Pioneer is U. These products meet the growing demand for corn processing used for beverage alcohol and human food consumption. High Yields. Best Genetics. Peat Moss Calculator Online. Dashboard. Bayer products are commercialized in accordance with ETS Product Launch Stewardship Guidance, and in compliance with Bayer’s Policy for Commercialization of Biotechnology-Derived Plant Products in Commodity Crops. Please, try again. Rows per. It is very lightweight compared to Bluestacks. northeast ohio. 50131 - Johnston, Iowa. Uniting States. Growing Season Maps. Use this tool to. The calculator gives a result of 30 square meters, which is the required shade cloth size. Global Dynamics United (GDU) is a camera Accessories Company based in Los Angeles. They don't belong in central Missouri. Local Yield Results. Careers Contact. Nutritionally oriented physicians sometimes use about 2000 GDU taken three times daily for several days, followed up 1340 GDU daily. United States. Plants experiencing drought will likely be shorter than normal. There is gonna be a decent amount of corn here that I just CAN NOT see making it to maturity. This calculator plays a significant role in modern agriculture, helping farmers and gardeners obtain accurate nutrient quantities for their. Keywords: fertilizer, crop nutrition, ekonomics, Crop Nutrients, growing degree days calculator, gdd calculator, rainfall tracker, gdu calculator, pioneer gdu calculatorAccording to Pioneer GDU calculator it will not reach maturity before average first frost with average Sept GDUs. Total growing and harvest costs. And with our multi-zone AC size calculator, we’ve made it easier than ever before to find the unit that’s the right size for your home. GDU Calculator; Corn Replant Calculator; Yield Calculator; Grain Drying Calculator; Why Wyffels. Reproductive Growth Stages and Field Drydown • Based on GDU accumulations, black layer and kernel moisture can be. Heavy 16 Calculator Online. The Ag PhD GDU Calculator is a reference for corn and wheat growers to determine the amount of Growing Degree Units for their crops in the current crop season. Height increased with densities up to 36,000 plants/acre and declined once population exceeded. Let’s walk through a practical example. We’re fiercely independent, which means we get to make independent decisions. Pioneer Growing Degree Unit (GDU) Calculator. Suppose you have a greenhouse of 100 square meters and you want to provide a 30% shade level. With just a few clicks, users can access a wide range of online calculators that can perform calculations in a variety of fields, including finance, physics, chemistry, and. GDD projections, combined with analysis of historical analog data, can help you make decisions about: Climate Risks– Identify the likelihood of early and late frosts/freezes. United States. Pioneer GDU Calculator Online. Planted 5/4. Corn Yield Estimator. . My 94 day corn planted 5/5/19 is only at 1827. United States. It looks like St Cloud has gotten 2055 GDUs so far, so another 345 to go. It calculates the rate at which a dosing pump should dispense a liquid chemical based on two key parameters: Capacity per Stroke and Time per Stroke. Canola Council of Canada 400-167 Lombard Avenue Winnipeg, MB, R3B 0T6 Toll-Free: 1-866-834-4378 Email: admin@canolacouncil. In this article, we’ll explore the GDU Calculator, its formula, how to use it, provide an example, and answer frequently asked questions to enhance your understanding of this critical agricultural metric. Pioneer GDU Calculator - Calculate Mathematical Expressions body { font-family: Arial, sans-serif; background-color: #f5f5f5; margin: 0; padding: 0; } . Growing Degree Unit (GDU) Calculator. Late May and early June plantings can lead to decreased yields, though interest in double-cropping later in season is also increasing. Pioneer GDU Calculator Online. These are calculated by taking the average temperature of the day (high-low/2) and subtracting out the base temperature, which is 50 F for corn. Growing Degree Unit (GDU) Calculator. Step 2: Determine economic factors. The Pioneer® Made To Grow™ Podcast. Results show total GDUs and Year-To-Year Comparisons change by date. Corn Yield Estimator. Growing Degree Units (GDUs) Growing Degree Days and GDUs refer to the same calculation based on air temperature. Detailed Explanations of the Calculator’s WorkingWyffels Hybrids is a U. Skip Navigation. When the calculator processes this data, it evaluates the differential reflection values from the plants’ surfaces. The calculator operates by correlating the yield of mushrooms to a specific conversion rate, representative of the CO2 production per gram of mushroom growth. Skip Navigation. Checked some 109 day May 17th planted corn yesterday and then ran Pioneer GDU calculator. 4°C or above 30°C. Weather & GDU Calculator - PioneerThe calculation for Growing Degree Units (GDU) using the Pioneer GDU Calculator is relatively straightforward. Message format. com and Mobile pioneer. See new Tweets. GDU Information. 50131 - Johnston, Iowa. Download yield results by year, crop and product for local plots.