3/21/2013 Webinar Overview

Transcription

1 Cornell Adapt N Intensive Workshop by Webinar: Precision Nitrogen Management in Corn Using the Adapt N Tool Presenters: Bianca Moebius Clune & Harold van Es Adapt N.cals.cornell.edu 3/21/2013 Webinar Overview Agenda Eastern Time Central Time Overview of N concerns, N dynamics & Tools for N management 11:00 11:40am 10:00 10:40am What is Adapt N? Interface overview 11:40 12:10pm 10:40 11:10pm 2011 & 2012 Adapt N on farm trial results 12:10 12:50pm 11:10 11:50pm Networking Lunch 12:50 1:20pm 11:50 12:20pm Inner workings of Adapt N and using the tool effectively Hands on exercise* on using Adapt N, evaluation and surveys 1:20 2:00pm 12:20 1:00pm 2:00 3:00pm 1:00 2:00pm Adjourn, additional time for Q&A 3:00pm 2:00pm *Do you have an Adapt N account yet? If not, adapt n@cornell.edu to request one and get on our announcement e list.

2 Acknowledgements Thanks to the tool developers and testers: Jeff Melkonian (Modeler) Art DeGaetano (Climate data) Laura Joseph (Adapt N tool interface programmer) Field Partners from Cornell Cooperative Extension, MGT Envirotec, Western NY Crop Management Association, Champlain Valley Agronomics, and others Growers hosting trials and providing feedback Thanks to our funders: New York Farm Viability Institute USDA NRCS Conservation Innovation Grants program USDA NIFA Agriculture and Food Research Initiative USDA NIFA Special Grant on Computational Agriculture (Rep. Maurice Hinchey) Hatch Smith Lever Funds Northern NY Agricultural Development Program International Plant Nutrition Institute Walton Family Foundation What is Adapt N? A Tool for Precision Nitrogen Management in Corn

3 Is server based ( cloud computing ), and accessible through multiple devices Its core is the PNM model, built from well calibrated dynamic simulation models and based on decades of field and modeling research Uses daily 3x3 mile near real time weather data (areas East of 100 W Meridian) Uses NRCS soil database information High Resolution Climate Data (3x3 mile) Critical Input to Adapt N Tool Iowa, June 14,

4 Basically. What does Adapt N do? It performs simulations based on daily time step It simulates water and nitrogen processes in the soil (soil, management, weather, etc.) It simulates corn growth (soil, management, weather) Soil and crop models interact It estimates crop N needs Field or subfield management scale Adapted for regional conditions (Northeast, Midwest) Incorporates economic and uncertainty corrections Provides additional information on: Environmental impact nitrate leaching and (soon) N 2 O losses Additional diagnostic information End of season situation analysis and what if scenarios

5 Cloud Computing Server based, with universal access through Web Anywhere with internet access Many platforms and operating systems (incl. tablets and phones) No software exchange with users, nor installation Easy and rapid updates Databases software Centralized processing and record keeping Integrated databases (weather, soil, crop, management) Where is Adapt N Available? Fully implemented: Northeast (ME, NH, VT, MA, RI, CT, NY, PA, NJ, MD, WV, DE, VA) Midwest (IA, MN, WI, IL, IN) Available for testing using generic soil information from neighboring states: OH, KY, NC, MO, MI Eastern ND, SD, NE, KS

6 N Recommendation Methodology: deterministic stochastic mass balance at sidedress time Input: Expected Yield Near Real Time Simulation at Sidedress SidedressNrate = CropN Harvest -CropN Current - SoilN Current - SoilN postsidedress - SoybeanN credit + NLoss postapplication - Correct profit Now: simulated & partial fixed credit Probabilistic simulations The Adapt N Interface: An Overview Options How to Info it provides *overview was provided as live desktop share see webinar video

7 Adapt N Interface: Manage Locations Adapt N Interface: entering Mineral N/Cultivar info

8 Adapt N Interface: entering Soil/Tillage info Adapt N Interface: entering irrigation info

9 Adapt N Interface: entering Manure/Rotations info Note: no cover crop or compost inputs at this time. When done entering all field info, click Submit to run the simulation. Adapt N Results Page: Example with need for sidedress N

10 Adapt N Results Page: Excess N in the system Downloadable pdf Adapt N Results: PDF Report All user inputs listed for record keeping. Recommendations from Results page Graphs describing N dynamics and relevant weather, soil water and plant parameters

11 Adapt N Graphs 21 Adapt N Graphs 22

12 Adapt N Graphs 23 Adapt N Graphs 24

13 Adapt N Graphs (for PSNT/LSNT equivalent, divide by 4) 25 Adapt N Graphs 26

14 Adapt N Graphs 27 Adapt N Graphs 28

15 Adapt N Graphs 29 Adapt N Graphs 30

16 Adapt N Graphs 31 Adapt N Graphs Des Moines lbs/ac preplant N

17 /text alert system for chosen fields Daily N recommendations automatically available

18 Poll#2: Which of the following statements are true: a) Adapt N can account for the impact of spring rainfall b) Adapt N can account for the impact of summer drought c) Adapt N can account for N mineralized from several organic sources d) Adapt N can provide expected yield to the user e) Adapt N can account for various crop management factors f) Adapt N can account for the impact of temperature g) All of the above Gross Return Differential Impact of Under and Over Fertilization due to Nonlinear Asymmetrical Yield Response to N (concept after Kachanoski and Fairchild, 1996) Stochastic Gross Returns:

19 Return from N Application unadjusted ( = 0) and stochastic ( = 50 lbs/ac) (fertilizer=$0.60/lb; corn=$6.00/bu) Fertilizer cost only $40 EONR EONR 30 lbs/ac Fertilizer cost and stochastic = 50 lbs/ac Agronomic optimum Corrections from Agronomic Optimum N rate to Maximize Returns (lbs N/ac) Price Ratio Price Ratio Only Price Ratio + Stochastic Fertilizer : Corn =0 lbs/ac =20 lbs/ac =30 lbs/ac =40 lbs/ac =50 lbs/ac $1.20 : $6 (0.20) $0.90 : $6 (0.15) $0.75 : $6 (0.125) $0.60 : $6 (0.1) $0.50 : $6 ( 0.083) $0.40 : $6 (0.067) $0.30 : $6 (0.05) $0.20 : $ ) Equation Corr = 50.55PR PR Corr = PR PR Corr = PR PR Corr = PR PR Corr = PR PR

20 Correction from Agronomic Optimum Rate to Obtain Economic Optimum N Rate (lbs/ac of fertilizer) Combined Price Ratio and Stochastic Corrections Used for Adapt N in 2012 Poll #3: Adapt N will be most useful to a grower who a) applies all/most N as fall anhydrous & uses Adapt N to see if more N is needed at sidedress time b) applies all/most N as preplant with stabilizer, and uses Adapt N to see if more N is needed at sidedress time c) applies 30 lb of starter N/acre, and uses Adapt N to provide a recommendation of how much N to sidedress d) uses cover crops and compost to supply N, to see how much N to sidedress

21 2013 Developments Batch upload capability (spring 2013) Other minor upgrades (spring 2013) Expansion to additional states (beta: spring 2013) No full expansion due to funding limitations Midwest users in non supported states will gain access to soils from neighboring states, along with their local weather data, to beta test the tool (recommended for simulations and strip trials, not full farm application yet). Cover crop N estimates(summer/fall 2013) N 2 O emission estimates (summer/fall 2013) Preview: Batch Upload Support System Create locations using CSV files Input component (fertilizer, rotation etc.) information using CSV files Additional tools for managing large amounts of location information Recommended for computer savvy growers and consultants managing large numbers of fields in Adapt N

22 Upload File Tab Browse files to search for appropriate CSV for upload Automatically registers any saved changes to files Specific formatting instructions for: Creating CSV files Adding locations Uploading component information Clear CSV file window Efficiently delete fertilizer and manure applications Keep track of Existing Locations and Missing Information View sample CSV files Creating Locations with CSV Files Upload locations from a single CSV file using Excel, Numbers, TextEdit, or CSV generating program Review upload success with the Upload Processing Report

23 Uploading Component Info Create CSV files for each component Examples: planting.csv, soil.csv, sod.csv Add multiple fertilizer or manure applications Example: fertilizer.csv Region specific instructions, error reporting, additional data processing features, missing information report are all available Questions, before we go on to onfarm results?