Using NMAN for Regulatory Purposes
Table of Contents
NMAN is a free software tool developed by the Ministry of Agriculture, Food and Rural Affairs (OMAFRA) to help farmers and consultants satisfy the requirements of the Nutrient Management Act, 2002 (NMA), and its regulations and protocols. NMAN uses data bases, formulas and the information you add to determine the volume of nutrients generated on your farm, the nutrient storage requirements and recommended rates of nutrient application. NMAN creates reports using this information that you can submit to OMAFRA demonstrating that you are complying with the NMA.
NMAN can also help you determine the best management practices on your farm, which in turn will:
You can find more information on the Using NMAN for Best Management Practices web page.
The latest version of NMAN is part of OMAFRA's Ontario's Agricultural Planning Tools Suite (AgriSuite) system. AgriSuite will notify you when there is a new release of the system, and will automatically update for you when you have an Internet connection. Once updated, you will see an updated version history in the lower right-hand corner of the AgriSuite screen.
Since AgriSuite is a web application, it will not be able to automatically check for updates if you are not connected to the Internet. Once you have an Internet connection, AgriSuite will automatically find the most recent version for you. If AgriSuite detects that a newer version is available:
If you have an older version of NMAN installed on your desktop to use offline, you will need to manually download Agrisuite. This is because the name of the web application has changed and it is not compatible with an automatic update.
Visit the AgriSuite web page for instructions on how to install, download and save the most recent version of NMAN to your desktop or web browser. You can also read the AgriSuite Help page under the "Help with using AgriSuite" section.
When you first download AgriSuite, you will need to fill out the user information on the "File Information" tab. After filling out the user information, go back to the start page and click "New." This will take you to a new screen where you can choose the NMAN worksheet you want to work on.
While there are five NMAN worksheets, the most common worksheets used for regulatory purposes are the:
The Field Management Plan and MSTOR (manure) worksheets are typically used to determine best practices for managing nutrients on your farm. Visit the Using NMAN for Best Management Practices web page for more information on how to use NMAN for best management practice purposes, such as optimizing nutrient applications.
This worksheet is used to manage non-agricultural source material (NASM), such as leaf and yard waste, fruit and vegetable peels, food processing waste, pulp and paper biosolids and sewage biosolids.
An OMAFRA-certified NASM Plan developer must develop a NASM Plan for you if you are required to submit a plan to OMAFRA under the regulation. Visit the University of Guelph Ridgetown Campus's website for more information on the NASM Plan Development Certificate and for a list of certified NASM Plan developers.
More information on NASM plans and how to meet the requirements of the NMA is available in the AgriSuite Help page under the "Using NMAN for Regulatory Purposes" section.
The NM worksheet is used to prepare nutrient management strategies (NMS) and plans (NMP) to calculate the expected amount of nutrients, such as manure, generated on a farm.
A certified nutrient management planner must develop a NMS and/or NMP if your operation requires these documents under the regulation. Visit the University of Guelph Ridgetown Campus website for more information on training and certification. Read the OMAFRA Factsheet Understanding When Farms Require a NMS, NMP or NASM Plan for more information on when you are required to submit a NMS, NMP or NASM Plan to OMAFRA.
NMAN has a worksheet to use for GNF strategies, plans and registrations. This worksheet will take you through the steps of generating, transferring and using GNF. There is a component at the start of the process that is used by GNF generators to estimate the number of nutrient units (NU) that will be generated by a GNF operation. Under the NMA, a GNF generator must register their operation with OMAFRA.
NMAN is used to comply with the NMA when completing a GNF Strategy, Plan or registration. These documents need to be prepared by someone that meets the requirements set out in the regulation. When using NMAN for regulatory purposes, NMAN will give you the actual number of NUs once the GNF and its treatment, storage or use has been entered into the worksheet.
See OMAFRA's Greenhouse Nutrient Feedwater Regulation web page for more information on the regulation and registering a greenhouse operation under the NMA.
The NMA sets out the terms and conditions of using NMAN to show compliance with the act. Nutrient management consultants certified by OMAFRA can use NMAN to create NASM plans, NMSs or NMPs, and GNF strategies and plans to submit to OMAFRA.
There are several "flags," or alerts, that NMAN uses to tell you that the worksheet is missing information, or if information poses a concern for your business or the environment.
missing information - (relevant to be able to print)
additional information required (required for the reviewers of the strategies or plans)
contrary to recommended best management practices
legislative stop (not likely to receive approval after printing the final report)
director's approval required (required for a NASM Plan and for GNF purposes)
NMAN 126.96.36.199 was released in April 2017 as part of the AgriSuite system. Visit the AgriSuite web page for more information on:
To ensure your documents reflect up-to-date legal requirements, you should use the most recent version of NMAN within three months of its release. Otherwise, your submission will be returned to you.
NMAN versions earlier than 3.3 might not be automatically updated until you manually download the AgriSuite system. See the "Loading NMAN" section above, or read the AgriSuite Help page to learn how to download and install the most recent version of NMAN.
When using NMAN to meet the regulatory requirements of the NMA, you will need a certified nutrient management consultant to develop the strategy or plan for you. Farmers can develop strategies for the operation if they take the appropriate training and are certified by OMAFRA.
You can find a directory of certified consultants and information about nutrient management certificate and licence requirements on the University of Guelph Ridgetown Campus's nutrient management website.
The information contained in this web page is not authoritative. It is derived from the Nutrient Management Act, 2002 (NMA) and its General Regulation (O. Reg. 267/03), the Nutrient Management Protocol and the Sampling and Analysis Protocol. Information on Greenhouse Nutrient Feedwater is derived from the Greenhouse Nutrient Feedwater Regulation (O. Reg. 300/14), the Greenhouse Nutrient Feedwater Management Protocol, the Greenhouse Nutrient Feedwater Management Table and Greenhouse Nutrient Feedwater Sampling and Analysis Protocol.
Efforts have been made to make it as accurate as possible, but in the event of a conflict, inconsistency or error, the requirements set out in the NMA and the associated regulations and protocols take precedence. The Government of Ontario assumes no liability for any inaccurate or incomplete information nor for any actions taken in reliance thereon. Prior to implementing any changes to your operations, it is strongly recommended that you review the NMA, its regulations and protocols directly and seek any advice you consider appropriate from a qualified person.
For more information:
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