In This Section

Topics

Nutrient Management Workbook

Author: OMAFRA Staff
Creation Date: 10 December 2003
Last Reviewed: 25 November 2004

1. Farmstead Information

  • Part 1
  • Part 2

    • 2. Nutrient Management Workbook Summary

  • Metric Version
  • Imperial Version

    • 3. Guide to Completing the Workbook - Sections A to S

    1. Section A - Field Information
    2. Section B - Maximum Allowable Liquid Loading Rate
    3. Section C - Manure Information
    4. Section D - Commercial Fertilizer
    5. Section E - Previous Crop Nitrogen
    6. Section F - Previous Manure Nitrogen
    7. Section G - This Year's Manure
    8. Section H - Ontario Crop Production Requirements
    9. Section I - Agronomic Nutrient Balance
    10. Section J - Field Inputs
    1. Section K - Manure Nutrients Applied
    2. Section L - Crop Removal
    3. Section M - Crop Removal Balance
    4. Section N - Nitrogen Available for Potential Loss
    5. Section O - Nitrogen Index
    6. Section P - Phosphorous Index
    7. Section Q - Minimum Separation Distance from Surface Water
    8. Section R - Useable Acreage
    9. Section S - Maximum Rates
    4. Glossary5. For More Information...

    Nutrient Management Workbook Summary (Metric Version)

    This summary represents 1 field - A summary must be completed for each field in the plan.

    Refer to the sections with the corresponding letters for more detailed instructions and calculations.

    A

    Field Information

    Field No.________ Field ID_____________ Crop Type________ Average Yield_______ Tillable Acres______ Previous Crop______ Tile Drained: Systematic____ Random___
    		 Soil Series______________________________
    Soil Texture______________________________
    Hydrologic Soil Group(Table 15)_____________
    Soil Test: Sodium Bicarbonate P_________mg/L Ammonium Acetate K__________ mg/L
    Watercourse within 150 m? __yes __no                                  __ in field __adjacent field

    B

    Planned Application Rate______________

    Maximum Allowable Application Rate______________________L/ha or tonnes/ha
    (From Section S)

    C

    		 Manure Nutrient and Application Information
    Description__________________________
    L/ha or tonne/ha
    Nutrient Values
    (1st)
    (2nd Application)
    Nitrogen____________
    kg/1000/L or kg/tonne
    P205____________
    kg/1000/L or kg/tonne
    K20____________
    kg/1000/L or kg/tonne
    "This Year's Manure" (Line G) is calculated as Nutrient Value multiplied by Planned Application Rate

    Time of Application

    __ Late Summer
    __ Early Fall
    __ Late Fall
    __ Spring pre plant
    __ Spring Side dress

    Time to Incorporation

    __ 1 day
    __ 3 days
    __ 5 days
    __ not incorporated
    __ injected


    Agronomic Nutrient Balance (kg/ha)
    N P205 K20
    D
    Fertilizer (Total Nutrients from all Applications)
    		+________ +_______ +_________
    E
    Previous Crop
    		+________   
    F
    Previous Manure
    		+________   
    G
    This Year's Manure
    		+________ +________ +__________
    H
    Production Requirements
    		-________ -________ -__________
    IGraphic of an exclamation mark
    Agronomic Nutrient Balance
    * Where Agronomic Nutrient Balance exceeds 17 kg/ha (15lb/ac), Crop Removal Balance must be completed.
    _________*
    _________*
    ___________

     

    Crop Removal Balance

    (kg/ha)

    N

    P205

    K20

    J

    Field Inputs (Line D+E+F)

    +________

    +________

    +__________

    K

    This Year's Manure

    +________

    +________

    +__________

    L

    Crop Removal

    -________

    -________

    -_________

    M

    Graphic of an exclamation mark

    Crop Removal Balance
    * Where Crop Removal Balance exceeds 17 kg/ha, Nitrogen Index must be completed. (Section O)


    _________*
    __________


    __________

    N

    N Available for Potential Loss

     

     

     


     

    O

    Nitrogen Index
    N-Index Value_______________(sum of)

    		Value A1 (previous crop)_____________ +
    Value B ____________
    Maximum N-Index Value =_______________________
    (Determine from Table 14 in Section O)     		Value A2 (current crop)_______________
    Graphic of an exclamation marka high value A2 could be limiting to fall manure application in next year's plan

     

    P

    Phosphorus Index

    a) _________+ b)_________ + c)__________ + d)__________ + e)_________ =____________.

    Q

    Minimum Separation Distance from Surface Water ________________________
    (Greatest of Table 16 or 17 in Section Q)

    R

    Useable Hectares___________________
    Tillable hectares - [(Setback distances Length x width) / 10,000 m2]

    In this workbook "Manure" includes any agricultural source material other than commercial fertilizer.

    Back to the Nutrient Management Workbook Table of Contents

     

    For more information:
    Toll Free: 1-866-242-4460
    E-mail: nman.omafra@ontario.ca