GeoPard Tutorials | Precision Ag Software
  • Introduction to GeoPard
    • GeoPard Platform: Frequently Asked Questions (FAQ)
  • 🖥️Product Tour - Web App
    • Getting Started
      • Create a new farm
      • Draw a new field
      • Upload a field boundary
      • Edit a boundary
      • Edit a field name
      • Add a label
    • 🛰️Satellite Monitoring
      • Order Planet Scope (3m daily) imagery
      • Indices for Crops and Soils
      • 📈Crop Development Index Graph
    • 📊Zones Maps and Analytics
      • Assign Variable Rates in the Zones (Ag inputs Rates Distribution Tool)
      • Creating Zones Map using Satellite Imagery
      • Creating Zones Map using Soil/Yield/As Applied Data
      • Creating Zones Map using Topography
      • Creating Zones Map using a Template
      • Draw Zones Manually, Clone from an existing layer
      • Usage of Data Classification
      • Edit Zones Map: Merge & Split
      • Multi-Year Zones
      • Multi-Layer Analytics
      • Compare layers
      • Heterogeneity factor
      • Relative variation factor
    • 📊Equation-based Analytics
      • Batch Equation analytics
      • Catalog of Predefined Agronomic Equations
      • Catalog of Custom Functions
    • ⛰️Topography
    • ⛰️3D Maps
    • Import
      • Field Boundary
      • Soil Data
      • Yield Data
      • As Applied/As Planted Data
      • Machinery Proprietary Formats
      • Import from MyJohnDeere
    • Export / Download
      • Field Boundary Export
      • Batch Export of Boundaries, Zones and Scouting Pins
      • Zones Map Export as shapefile
      • Satellite Imagery Export as geotiff or geojson
      • Export Scouting Notes as shapefile
      • Export VRA map In ISOXML Format
      • Export to MyJohnDeere
    • 🤖API
    • Operations Log - Track errors/Imports and Analytics
    • Organizations and Roles
    • Farms Sharing between Accounts & Organizations
    • Managing Crop Season information with tags(labels)
      • Case: Managing fields for several clients
      • Case: Season details including crop and year
      • Case: Field operation details
    • ⚙️User Settings
      • Subscriptions, Account limits & Plans
      • Restoring password
      • Order the package
      • Changing preferences
    • 🚜John Deere Operations Center Integration
      • 🚜John Deere Operations Center Integration
        • 1. Create Free Trial Account with you John Deere Account
        • 2. Connect to JohnDeere Operations Center
        • 3. Connect to John Deere Organizations
        • 4. Import into GeoPard from John Deere Operations Center
        • 5. Configure Automated Data Sync
        • 6. Export Rx Maps to John Deere Operations Center as Files
        • 7. Export Field Boundaries into John Deere Operations Center
          • 7a. Organization configuration of export boundary to John Deere Operations Center as File
        • 8. Export Rx Maps to John Deere Operations Center as Work Plans
        • 9. Export Soil, Topography, Satellite or Analytics as Map Layers
      • 🚜John Deere Operations Center Data Sharing
        • 1. "Staff Member" sharing
        • 2. Problem-solving of "Staff Member" sharing
        • 3. "Partner Organization" sharing
        • 4. Problem-solving of "Partner Organization" sharing
        • 5. Problem-solving of import from John Deere to GeoPard
        • 6. Problem-solving of Work Plan creation
        • 7. Sharing Fields/Boundaries Between Partner Organizations in John Deere Ops Center, DataSync config
  • 🚀Changelog & Product Releases
    • Release Notes
      • Release Web May 2025 (Rates Distribution, improved Legends)
      • Release Web March 2025 (Improved Zones, WorkPlans updates, Yield data enhancements)
      • Release Web January 2025 (Free Trial, Usage-based Pricing Plan, USDA Yield Cleaning protocol, Export of calibrated Yield data to John Deere Ops Center, Import of kml)
      • Release Web August 2024 (Data Layer Previews, Spatially localized Zones; Use zones and Equations in new Equations)
      • Release Web July 2024 (Equation Map creation, Spatially localized zones, Seeding and Application Work Plans)
      • Release Web May 2024 (Raw view for Satellite Images, export of Zone Maps as WorkPlan to the John Deere Operations Center, redesign of Batch Analytics)
      • Release Web April 2024 (Batch Equation Maps and enhanced layer transparency)
      • Release Web February 2024 (Per area pricing, units)
      • Release Web January 2024 (many UI improvements)
      • Release Web November 2023 (Clone Polygons, Subscription management)
      • Release Web October 2023 (Yield Calibration, Equation Maps as ISOXML, PDF Export and John Deere Integration)
      • Release Web September 2023 (Cleaning & Calibrating Yield Datasets, more languages support)
      • Release Mobile August 2023 (Mobile app impovements)
      • Release Web July 2023 (Operations Log page, Sum in datasets)
      • Release Web June 2023 (Improved Equations, Operations log v1)
      • Release Mobile May 2023 (Social Login)
      • Release Web May 2023 (John Deere integration improvements)
      • Release Web January 2023 (huge amount of small improvements)
      • Release Web October 2022 (Integration with AgGateway protocols, Isoxml support and more)
      • Release Web April 2022 (3D maps and Zoning Tools)
  • 👨‍🌾Agronomy
    • Precision Agronomy Use Cases & Best Practices Overview
    • Field Management Zones (Productivity Zones) Creation Process
    • Variable Rate Seeding (Planting) Maps
    • Yield Calibration & Cleaning
    • Synthetic Yield Map
    • Create Soil Sampling Zones, Points, Route, export as KML, and execute
    • Evaluate Accuracy of Seeding Application
    • Evaluate Accuracy of Fertilizer Application
    • Field Trial Analytics
    • Nitrogen Use Efficiency & Uptake
    • Comparing Yield Datasets
    • Compare Soil Scanner Data between Years
    • Flood Insurance report
    • Profit Maps (COMING)
    • VRA/Rx/Prescription Fertilizer Maps (COMING)
    • VRA/Rx/Prescription Nitrogen Maps (COMING)
    • VRA/Rx/Prescription Spraying Maps (COMING)
    • Multi-Layer Field Potential Maps (COMING)
    • VR Lime Application Based on Soil Scanner pH Data (COMING)
    • Merging Yield Datasets Belonging to the Same Field (COMING)
  • 📱Product Tour - Mobile App
    • Installation
    • Logging in
    • Viewing satellite images
    • Viewing zones maps
    • Viewing soil data
    • Viewing yield data
    • Viewing topography maps
    • Viewing as applied datasets
    • Working in the field/Scouting zones maps
    • Working offline
    • Filters
    • Options
    • Settings
  • 🤖API Docs
    • GeoPard API Overview
    • Getting Started
    • Authorization: ApiKey, Credentials or OAuth 2.0
    • Diagrams with Basic Flows
      • 1. Field Registration
      • 2. GraphQL Subscription
      • 3. Grep Satellite Imagery
      • 4. Upload Soil | AsApplied | Yield Datasets
      • 5. Execute Equations
      • 6. Generate ZonesMap
      • 7. Download Gridded Data
      • 8. Download Original Data
    • Data Schema
    • Requests Overview
      • 1. Subscription: Get Events
      • 2. Query: Get "Fields"
      • 3. Query: Get "SatelliteImages"
      • 4. Query: Get defined "SatelliteImage"
      • 5. Query: Get "RasterMaps"
      • 6. Query: Get "ZonesMaps"
      • 7. Mutation: Generate "ZonesMap"
      • 8. Mutation: Generate "RasterMap"
      • 9. Mutation: Generate "ZonesMap" asynchronously
      • 10. Mutation: Generate "RasterMap" asynchronously
      • 11. Mutation: Generate Yield based "ZonesMap" asynchronously
      • 12. Mutation: Generate Soil based "ZonesMap" asynchronously
      • 13. Mutation: Create "Farm"
      • 14. Mutation: Create a "Field" or edit the boundary of the existing field (with optional labels)
      • 15. Query: Get "TopographyMap"
      • 16. Query: Get "YieldDatasets"
      • 17. Query: Get "SoilDatasets"
      • 18. Mutation: Generate zip archive with "ZonesMap" and "Field"
      • 19. Mutation: Delete "Field"
      • 20. Mutation: Delete "Farm"
      • 21. Mutation: Delete "ZonesMap"
      • 22. Mutation: Delete "RasterAnalytisMap"
      • 23. Mutation: Delete "SoilDataset"
      • 24. Mutation: Delete "YieldDataset"
      • Notes (Pins)
        • 25. Mutation: Save "Note" attached to "Field"
        • 26. Mutation: Save "Note" attached to "ZonesMap"
        • 27. Mutation: Save "Note" attached to "SoilDataset"
        • 28. Mutation: Save multiple "Notes", Batch operation
        • 29. Mutation: Delete "Note"
        • 30. Mutation: Delete multiple "Notes"
        • 31. Query: Get all "Notes" related to "Field"
        • 32. Query: Get "Notes" related to "ZonesMap" and type
        • 33. Query: Get "Notes" related to "SoilDataset" and type
        • 34. Query: Get a selected "Note" with all "Comments"
        • 35. Mutation: Add "Comment" to the selected "Note"
        • 36. Mutation: Add multiple "Comments" to the selected "Notes"
      • 37. Query: Get "SatelliteImages" in the defined interval
      • 38. Query: Get "UserData"
      • 39. Mutation: Set custom color schemas to selected "GeoMaps"
      • 40. Query: Get "Labels" on the account level
      • 41. Mutation: Save "Labels" on the account level
      • 42. Mutation: Delete "Label" on the account level
      • 43. Query Get "Fields"
      • 44. Mutation: Set Field Labels
      • 45. Mutation: Save User Data
      • 46. Mutation: Generate multi-layer "ZonesMap" asynchronously
      • 47. Query: Get "ZonesMaps"
      • 48. Query: Get Gridded Data from "TopographyMap"
      • 49. Query: Get Gridded Data from "FieldSatelliteImage"
      • 50. Query: Get Gridded Data from "VectorAnalysisMap"
      • 51. Query: Get Gridded Data from "YieldDataset"
      • 52. Query: Get Gridded Data from "SoilDataset"
      • 53. Query: Get Gridded Data from "AsAppliedDataset"
      • 54. Query: Get Vector Data from "SoilDataset"
      • 55. Upload zip files (over 6 MB)
      • 56. Upload photos
      • 57. Query: Get "Photos" attached to the selected "Note"
      • 58. Query: Get "Photos" attached to "Comments"
      • 59. Query: Get "AsAppliedDatasets"
      • 60. Mutation: Generate As-Applied-based "ZonesMap" asynchronously
      • 61. Mutation: Delete "AsAppliedDataset"
      • 62. Mutation: Share Farms
      • 63. Mutation: Save Organization
      • 64. Mutation: Add Users to Organization
      • 65. Mutation: Delete Users from Organization
      • 66. Mutation: Save Field
      • 67. Mutation: Save Farm
      • 68. Mutation: Refresh "VectorAnalysisMap" Statistics
      • 69. Mutation: Delete "Photo"
      • 70. Mutation: Delete multiple "Photos"
      • 71. Mutation: Generate a zip archive with "Notes"
      • 72. Query: Get Gridded Data as GeoJSON or GeoTIFF
      • 73. Query: Get Gridded Data with the Selected Buffer
      • 74. Mutation: Verify "Equation"
      • 75. Mutation: Generate "EquationMap" asynchronously
      • 76. Query: Get "EquationMap"
      • 77. Mutation: Delete "EquationMap"
      • 78. Query: Find "Fields" by "externalKey"
      • 79. Query: Find "Farms" by "externalKey"
      • 80. Query: Get Original Data
      • 81. Query: Get GeoJSON of "EquationMap"
      • 82. Query: Restore Subscription Events
      • 83. Query: Collect Platform Context
      • 84. Mutation: Calibrate and Clean YieldDataset
      • 85. Mutation: Assign Rates to VectorAnalysisMap (ZonesMap)
      • 86. Query: Get "Farms"
      • 87. Mutation: Save Custom VectorAnalysisMap (ZonesMap)
      • 88. Mutation: Export ZonesMap as Zipped Shapefile
      • 89. Mutation: Export ZonesMap as Zipped ISOXML
    • Geo Endpoints
      • WMS - Get Raster Pictures of Spatial Data Layers
        • 1. LAI
        • 2. RGB
        • 3. Field: boundary
        • 4. Field: thumbnail
        • 5. ZonesMap
        • 6. ZonesMap: custom color schema
        • 7. ZonesMap: thumbnail
        • 8. RasterMap
        • 9. RasterMap: custom color schema
        • 10. RasterMap: thumbnail
        • 11. TopographyMap: elevation in absolute numbers
        • 12. YieldDatasetsMap
        • 13. SoilDatasetsMap
        • 14. SoilDatasetsMap: custom color schema
        • 15. AsAppliedDatasetsMap
        • 16. Satellite Image: cropped by Field boundary
        • 17. Satellite Image: cropped by Field boundary and custom color schema
        • 18. YieldDatasetsMap: custom color schema
        • 19. Satellite Image: 10 colors visualization
      • WFS - Get Spatial Data Layers in Vector format (shp, geojson)
        • 1. Get the Field Boundary as Geojson
        • 2. Get the Zones map as Geojson
        • 3. Get Zones Attributes as JSON
        • 4. Get Soil data as Geojson
        • 5. Get Yield data as Geojson
    • Uploading Files
    • API FAQ
  • 🛣️Platform Roadmap
    • Roadmap
  • GIS quick Hints
    • QGIS: Change String to Number values in the shapefile
    • QGIS: Yield Data Manipulations
    • QGIS: Split Boundaries Into Subfields
    • QGIS: Merge Vector Layers
    • QGIS: Merge Selected Features from Vector Files
    • QGIS: Calculate NDVI for the Drone Geotiff File
    • QGIS: Split Multi-field Shapefiles
    • QGIS: Convert CSV to SHP
    • QGIS: Reproject Shapefile
  • Policies
    • Your Data Stays Yours, Securely Managed By GeoPard
    • Terms & Conditions
    • Privacy Policy
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This Portal Sections

  • Introduction
  • Product Tour - Web App (incl. video)
  • Product Tour - Mobile App (incl. video)
  • Precision Agronomy Use Cases

Powered by GeoPard Agriculture - Automated precisionAg platform

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  1. Product Tour - Web App
  2. Equation-based Analytics

Catalog of Predefined Agronomic Equations

GeoPard provides you a catalog of predefined agronomic formulas. You can create new or override existing equations

PreviousBatch Equation analyticsNextCatalog of Custom Functions

Last updated 3 months ago

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We have predefined templates, but also you can adjust existing formulas, create your own equations, and share them with your colleagues or clients.

Screen - select a formula from the Catalog of Predefined Equations or Create New Formula

List of Agronomic formulas available in GeoPard:

Winter Wheat Total Iron Removal in LB/AC

This formula estimates Iron (Fe) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Canola Total Magnesium Removal in LB/AC

This formula estimates Magnesium (Mg) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Winter Wheat Total Nitrogen Removal in KG/HA

This formula estimates Nitrogen (N) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Winter Wheat Total Copper Removal in LB/AC

This formula estimates Copper (Cu) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Winter Wheat Nitrogen Used Efficiency based on Yield Data and Fixed Applied Nitrogen

The equation calculates the efficiency of nitrogen usage (NUE) by taking into account the Yield Data with Crude Protein details and the fixed amount of Nitrogen applied. It quantifies in percent how effectively the applied Nitrogen contributes to the resulting Yield. The equation is tailored for Winter Wheat.

Winter Wheat Total Manganese Removal in KG/HA

This formula estimates Manganese (Mn) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Corn Total Iron Removal in KG/HA

This formula estimates Iron (Fe) uptake and removal for Corn (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2022.

Canola Total Nitrogen Removal in KG/HA

This formula estimates Nitrogen (N) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Winter Wheat Total Boron Removal in LB/AC

This formula estimates Boron (B) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Canola Total Boron Removal in KG/HA

This formula estimates Boron (B) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Evaluate Yield Trend

The equation runs the classification of the yield dataset to calculate the trend. There are 3 output classes: '0' - areas below the trend, '1' - above the trend, '-1' - no data. Additionally, the correction of wet mass based on moisture percent is incorporated.

Numpy

Corn Total Phosphate Removal in KG/HA

This formula estimates Phosphate (P2O5) uptake and removal for Corn (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2022.

Canola Total Sulfur Removal in LB/AC

This formula estimates Sulfur (S) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Winter Wheat Total Zinc Removal in KG/HA

This formula estimates Zinc (Zn) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Winter Wheat Total Boron Removal in KG/HA

This formula estimates Boron (B) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Winter Wheat Total Calcium Removal in LB/AC

This formula estimates Calcium (Ca) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Winter Wheat Total Manganese Removal in LB/AC

This formula estimates Manganese (Mn) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Canola Total Potassium Removal in KG/HA

This formula estimates Potassium (K2O) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Corn Potassium Recommendations South Dakota State University in LB/AC

SDSU Extension fertilizer recommendations are based on field research in South Dakota and neighboring states. Potassium soil test results in this guide are stated in parts per million (ppm) and not pounds per acre. Banding K near the seed as a starter frequently results in more efficient use of these fertilizers. Starter fertilizers: Nitrogen plus K2O applications in contact with the seed should be limited to 10 lbs/ac for 30-inch rows, Reduce these amounts by half for dry or coarse-textured soils. Revised September 2005.

Aggregated Applications of Calcium Ammonium Nitrate

The equation represents the aggregation of three separate Nitrogen applications that involve the use of a product called Calcium Ammonium Nitrate (Kalkammonsalpeter). Additionally, it takes into account the conversion factor for pure Nitrogen contained in the applied product (as factor 0.27).

Canola Total Iron Removal in KG/HA

This formula estimates Iron (Fe) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Corn Total Calcium Removal in KG/HA

This formula estimates Calcium (Ca) uptake and removal for Corn (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2022.

Winter Wheat Total Magnesium Removal in LB/AC

This formula estimates Magnesium (Mg) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Canola Total Phosphate Removal in KG/HA

This formula estimates Phosphate (P2O5) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Canola Total Phosphate Removal in LB/AC

This formula estimates Phosphate (P2O5) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Lime Rates on Acid Soils Ukraine in KG/HA

Lime recommendations are given in kilograms of pure finely ground calcium carbonate (CaCO3) for different soil textures and pH values. Actual rates of limestone or other liming materials to apply should be calculated from the recommended CaCO3 rate and the effective coefficient of the product to be applied. Revised Agroschool 2022.

Canola Total Copper Removal in LB/AC

This formula estimates Copper (Cu) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Lime Rates Ukraine in KG/HA

Lime recommendations are given in kilograms of pure finely ground calcium carbonate (CaCO3) for different soil textures and pH values. Actual rates of limestone or other liming materials to apply should be calculated from the recommended CaCO3 rate and the effective coefficient of the product to be applied. Revised Agro Chemistry 2010.

Canola Total Nitrogen Removal in LB/AC

This formula estimates Nitrogen (N) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Canola Total Calcium Removal in KG/HA

This formula estimates Calcium (Ca) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Canola Total Boron Removal in LB/AC

This formula estimates Boron (B) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Winter Wheat Total Potassium Removal in KG/HA

This formula estimates Potassium (K2O) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Canola Total Magnesium Removal in KG/HA

This formula estimates Magnesium (Mg) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Winter Wheat Total Phosphate Removal in KG/HA

This formula estimates Phosphate (P2O5) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Vegetation Difference

This formula calculates the crop vegetation difference between two satellite images according to the selected vegetation index.

Winter Wheat Total Sulfur Removal in KG/HA

This formula estimates Sulfur (S) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Canola Total Potassium Removal in LB/AC

This formula estimates Potassium (K2O) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Corn Total Boron Removal in KG/HA

This formula estimates Boron (B) uptake and removal for Corn (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2022.

Canola Total Manganese Removal in KG/HA

This formula estimates Manganese (Mn) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Winter Wheat Total Sulfur Removal in LB/AC

This formula estimates Sulfur (S) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Canola Total Calcium Removal in LB/AC

This formula estimates Calcium (Ca) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Corn Total Nitrogen Removal in KG/HA

This formula estimates Nitrogen (N) uptake and removal for Corn (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2022.

Winter Wheat Nitrogen Used Efficiency based on Yield Data and Multiple Nitrogen Applications

The equation evaluates the efficiency of nitrogen usage (NUE) by considering Yield data with Crude Protein details and multiple Nitrogen applications. It specifically incorporates the Nitrogen application from the Calcium Ammonium Nitrate product with a conversion factor of 0.27 to accurately quantify the Nitrogen's contribution. The equation is tailored for Winter Wheat.

Corn Phosphorus Recommendations South Dakota State University in LB/AC

SDSU Extension fertilizer recommendations are based on field research in South Dakota and neighboring states. Phosphorus soil test results in this guide are stated in parts per million (ppm) and not pounds per acre. Interpretation for the Olsen phosphorus soil test procedures is listed here. Banding P near the seed as a starter frequently results in more efficient use of these fertilizers. The P2O5 recommendation can be reduced by one third if applying as a starter. If the previous “crop” was fallow or potatoes: The growth of corn after fallow or potatoes is sometimes not satisfactory . To correct this, apply 20-30 lbs/ac of P2O5 as a starter. Revised September 2005.

Corn Total Magnesium Removal in KG/HA

This formula estimates Magnesium (Mg) uptake and removal for Corn (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2022.

Winter Wheat Total Phosphate Removal in LB/AC

This formula estimates Phosphate (P2O5) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Corn Total Zinc Removal in KG/HA

This formula estimates Zinc (Zn) uptake and removal for Corn (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2022.

Lime Recommendations Iowa State University in LB/AC

Lime recommendations are given in pounds of pure finely ground calcium carbonate (CaCO3) for different soil buffer pH values, target soil pH, and depth of soil to be neutralized. Actual rates of limestone or other liming materials (such as pelleted limestone or water treatment plant residual materials) to apply should be calculated from the recommended CaCO3 rate and the effective calcium carbonate equivalent (ECCE) of the product to be applied. Revised October 2013.

Winter Wheat Total Iron Removal in KG/HA

This formula estimates Iron (Fe) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Corn Total Copper Removal in KG/HA

This formula estimates Copper (Cu) uptake and removal for Corn (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2022.

Winter Wheat Total Nitrogen Removal in LB/AC

This formula estimates Nitrogen (N) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Lime Use for Soil Acidity Management University of Nebraska–Lincoln in LB/AC

University of Nebraska lime recommendations are based on liming material that has a 60 percent effective calcium carbonate equivalent (ECCE). For each 0.1 pH buffer reading below 7.0, application of 1000 to 1200 lb/A of ag-lime (60 percent ECCE) is recommended. If lime ECCE is more or less than 60 percent, the rate is adjusted by multiplying the recommended rate by 60 and dividing by the actual ECCE. Revised June 2015.

Canola Total Manganese Removal in LB/AC

This formula estimates Manganese (Mn) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Winter Wheat Total Potassium Removal in LB/AC

This formula estimates Potassium (K2O) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Canola Total Zinc Removal in KG/HA

This formula estimates Zinc (Zn) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Canola Total Sulfur Removal in KG/HA

This formula estimates Sulfur (S) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Canola Total Copper Removal in KG/HA

This formula estimates Copper (Cu) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Corn Total Sulfur Removal in KG/HA

This formula estimates Sulfur (S) uptake and removal for Corn (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2022.

Winter Wheat Total Copper Removal in KG/HA

This formula estimates Copper (Cu) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Canola Total Iron Removal in LB/AC

This formula estimates Iron (Fe) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Winter Wheat Total Magnesium Removal in KG/HA

This formula estimates Magnesium (Mg) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

Winter Wheat Total Zinc Removal in LB/AC

This formula estimates Zinc (Zn) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Canola Total Zinc Removal in LB/AC

This formula estimates Zinc (Zn) uptake and removal for Canola (Grain and Stover) crops grown in different countries of the world in imperial units. Last modified: March 2023.

Corn Total Manganese Removal in KG/HA

This formula estimates Manganese (Mn) uptake and removal for Corn (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2022.

Corn Total Potassium Removal in KG/HA

This formula estimates Potassium (K2O) uptake and removal for Corn (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2022.

Winter Wheat Total Calcium Removal in KG/HA

This formula estimates Calcium (Ca) uptake and removal for Winter Wheat (Grain and Stover) crops grown in different countries of the world in metric units. Last modified: March 2023.

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