Why Ohio Fertilizer Certification Matters — and Who Should Be Certified
Are you applying or supervising the application of manure or fertilizer on your farm? If so, you’ll want to read on.
What is the certification?
In Ohio, the Ohio Fertilizer Applicator Certification is a required credential for anyone applying fertilizer or manure—or supervising its application—on more than 50 acres of agricultural production grown primarily for sale. Technically, fertilizer is defined as any substance containing nitrogen, phosphorus, potassium, or other plant nutrients in dry or liquid form. The certification training gives you the knowledge you need to meet regulatory requirements, manage nutrients, protect water quality, apply materials effectively, and keep proper records.
Who needs to be certified?
- If you apply fertilizer or manure to more than 50 acres of agricultural land grown primarily for sale, you are required to obtain certification.
- If you supervise others applying fertilizer or manure on 50+ acres, you also need to be certified.
- The certification covers both commercial and private applicators—there is no separate “private vs commercial” certification; the same credential applies across the board.
Why is this important? Continue reading New Fertilizer Applicator Certification Class in Paulding County on December 3
Paulding County Fertilizer & Pesticide Recertification Classes



Greetings all,
Registration is required for the January 30, Fertilizer and Pesticide Recertification in Paulding County. We now have a link to register online and we now also have a credit card payment option. You must have an email address to pay by credit card. You may also scan the QR Code to register and pay.
Testing for Private and Commercial Pesticide, Fertilizer Applicator License will take place on February 7, February 23, and March 8 in Paulding County at the Extension Office. While our office does not administer the test, we are the host and will do our best to provide you with information. Testing will start at 10:00 AM. You must pre-register via ODA’s website 


By now many of you who are up for certification for Private Pesticide or Commercial/Private Fertilizer (Category 15) are receiving letters your renewal letters from the Ohio Department of Agriculture. If you have completed your total hours for re-certification, you may mail the invoice and payment into ODA for the $30. This is called the RENEWAL fee. Many times this is confusing as you only do this once every three years. (There is also an option to pay the RENEWAL online at 







“What are the right decisions for phosphorus management in crop production that reduce water quality impacts?” is a common question I have from farmers looking to improve yield yet are concerned about downstream water quality impacts of phosphorus.