USDA Certified OrganicCertified by Ohio Ecological Food and Farm Association

Aaron and Terri Rook

Name: Aaron and Terri Rook
Address: 16413 Old Mansfield Road, Fredericktown, OH, 43019, US
Telephone: (330) 416-7384

Fredericktown, OH 43019Darke CountyHay

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279

acres

crops grown

certifications

About Aaron and Terri Rook

Aaron and Terri Rook is a certified organic farm located in Fredericktown, Ohio (Darke County). The operation focuses on Hay.

Aaron and Terri Rook is committed to certified organic farming practices, prioritizing biological soil health and sustainable agriculture in Ohio. Organic certification ensures the farm meets strict USDA standards for avoiding synthetic pesticides and fertilizers, instead relying on biological inputs, cover cropping, and regenerative practices that build long-term soil fertility.

This farm holds the following certifications: USDA Certified Organic, Certified by Ohio Ecological Food and Farm Association. Certificate data is sourced directly from the USDA National Organic Program registry. View USDA Certificate

Crops Grown at Aaron and Terri Rook

Each crop links to biological fertilizer guides and state-specific growing data.

HayForage

Spring-Fall

Fertilizer guide·Hay in Ohio

Biological Programs for Hay Growers

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Products Used by Ohio Organic Farmers — matched to Hay production. Ships direct from AgConcepts to your farm.

Enhance

Foliar

Foliar fertilizer that delivers phosphate and essential nutrients directly through the leaf — applied during vegetative-to-reproductive transition for maximum crop response.

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ZyDrive

Biological

In-furrow and seed treatment biological inoculant that delivers nitrogen-fixing bacteria, phosphate solubilizers, and mycorrhizal fungi directly at the germinating seed.

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Certified Organic Farming in Ohio

Ohio is home to 77,800 farm operations, a growing number of which hold USDA Organic certification. Organic farms in Ohio primarily produce Corn, Soybeans, Wheat, and similar crops using biological soil programs that build long-term sustainability.

Biological inputs — including humic acids, beneficial enzymes, and mycorrhizal fungi — are a cornerstone of certified organic production across Ohio, replacing synthetic fertilizers while improving soil structure and crop resilience.

Corn farmers in Ohio Ohio farm directory