2005 Nutrient Management
Protocol for Ontario Regulation 267/03 Made under the Nutrient Management
Part 7 - Nutrient Management Plans
Table of Contents
- Review and Updating of a Nutrient Management Plan
- Required Contents of a Nutrient Management Plan
(Regulation Part 3)
7.1 Review and Updating of a Nutrient Management
A nutrient management plan should be reviewed by the farm
unit operator annually to ensure that it is still relevant and to
recognize and explain any difference between the projections in
the nutrient management plan and the records kept of actual events.
All nutrient management plans must be reviewed every five
years and should be annually kept up to date to reflect current
circumstances on the farm.
7.2 Required Contents of a Nutrient Management
Plan (Regulation Part 3)
See Part 5 of the Protocol for descriptions of each of the components
listed below as they will have already been completed if a strategy
7.2.1 Components of the Nutrient Management Plan
- Nutrient Information
- Field Information
- Cropping practices
- Nutrient application
- Nutrient application rates
- Land base information
7.2.2 Nutrient Information
The nutrient information for all prescribed material intended to
be land applied on the farm unit must correspond to the information
found in a Nutrient Management Strategy for the farm unit.
7.2.3 Field Information
All land identified in the farm unit must be included in a field
section if prescribed materials are to be applied to this land during
the nutrient management plan period.
The following field properties must be provided in the nutrient
management plan for each field identified in the farm unit:
- The total tillable area for each field.
- The total tillable area available for nutrient application.
Note: this is determined by subtracting the area not available
for nutrient application due to required setbacks from the total
tillable area for each field.
- The percentage of maximum sustained slope near the surface water
if the field is within 150 metres of surface water.
- A statement as to whether the field is tile drained.
- Predominant soil series and soil texture for the field.
- A statement regarding the presence or absence of known wells
within regulated distances of the field boundaries.
- A statement as to whether surface water is adjacent or contained
within the field.
Many of the field properties are required in the format of a sketch
for each field in the farm unit. The sketch must address the following
- field identifier (from Farm Unit Declaration)
- sections within the field, if the field has more than one section,
including individual field locations and boundaries
- identify the presence of tile drains
- the following features must also be included on the sketch (or
where the features do not exist, a statement indicating this must
- the location of all surface water,
- the location of non-agricultural land uses,
- the location of any municipal wells within 100 metres of
the field boundary
- if land applying biosolids, the location of all other known
wells within 90 metres of the field boundary
- if land applying only agricultural source material, the
location of all other known wells within 30 metres of the
- the maximum sustained slopes within 150 metres of the top
of bank of all surface water and
- show the separation distances for surface water required
to meet the regulatory requirements.
Soil Sampling and Analysis
Soil sampling and analysis is to be performed according to Part
9 of the Regulation
7.2.4 Cropping Practices
Crop Rotation and Yields
The following information is required for each field in the nutrient
- crop rotation for the duration of the nutrient management plan;
- expected planting and harvest dates;
- expected crop yields for the duration of the nutrient management
- previous years' crops
7.2.5 Nutrient Application
Commercial Fertilizer Application
All liquid and solid commercial fertilizer applied must be identified
for the entire duration of the nutrient management plan. This includes,
but is not limited to: starter, pop-up, side-dressed, broadcast,
banded, foliar, fertigated, incorporated or unincorporated applications.
For each application, the application date, incorporation method
and amount of nutrient application must be identified.
Application of Prescribed Materials and Limits
For each prescribed material listed in section 7.2.2 above, "Prescribed Materials Applied to Land in the Farm Unit" the
nutrient management plan must identify the following for the entire
duration of the nutrient management plan:
- prescribed material type and form;
- expected application date;
- application method;
- timing for incorporation; and
- application frequency;
7.2.6 Nutrient Application Rates
A rate of application for each prescribed material intended to
be applied to land must be determined for each part of the land
managed in the farm unit (for example: each field, group of fields
or field section). Application rates are based on many factors including:
the characteristics of the land, and cropping and nutrient information
set out in the nutrient management plan. The application rates also
are balanced using the agronomic and crop removal balances as described
Note: Each of the components in this section apply to agricultural
source materials, non-agricultural source materials and commercial
fertilizers and must be calculated in accordance with Part IX
- Nutrient Quality Standards of the Regulation.
Agronomic and Crop Removal Balance of Nitrogen
To determine the limits for nitrogen application you must calculate
the Agronomic Balance and if needed Crop Removal Balance
as set out below:
- Agronomic Balance: Agronomic Balance is the total available
nitrogen from all applied nutrients minus crop production requirements
(OMAFRA crop fertilizer recommendations).
- Crop Removal Balance: Total available nitrogen minus the nitrogen
removed from the field with the crop when it is harvested.
Agronomic and Crop Removal Balance for Phosphorus
To determine the limits for phosphorus application you must calculate
the Agronomic Balance and if needed Crop Removal Balance as set out below:
- Agronomic Balance: Agronomic Balance is the total available
phosphorus from all applied nutrients (which is 40% of the total
phosphorus in organic materials in the year it is applied) minus
the crop production requirements (OMAFRA crop fertilizer recommendations).
- Crop Removal Balance: Total available phosphorus (which is assumed
to be 80% of the total phosphorus in organic material applied
because it includes more than the prescribed materials for the
present year and phosphorus becomes available over time for use
by future crops) minus the phosphorus removed from the field with
the crop when it is harvested.
Common Land Application Setback/Limits Regulation Part 6
- The Nutrient Management Plan must also include the requirements
found in Part VI of the Regulation.
7.2.7 Land Base Information
Demonstration of Adequate Land Base
The nutrient management plan must demonstrate that a sufficient
land base exists for the application of all the nutrients identified
for land application to the farm unit so that none of the allowable
application rates is exceeded and all of the setbacks are met.