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Organic Trade Association
Organic Trade Association (OTA) is a membership-based business association that focuses on the organic business community in North America.

    PO Box 547
    Greenfield, MA 01302
    413-774-7511
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Fertilizers and Soil Amendments

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Resource Listing
keyFertilizers/Soil Amendments
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New Farm's List of Farm Supplies & Productsota
New Farm's website offers a searchable database, Farmer to Farmer, that farmers can use to locate feed sources, farm supplies, and bulk seeds, and...
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OMRI Products List of Approved Materialsota
The OMRI Products List is a directory of all products OMRI has determined are allowed for use in organic production, processing, and handling. The...
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About Brand Name Materials Approved for Use in Organic Production & Handlingota
This site offers an explanation of the terms and regulations for organic, brand name materials and links to a current list of materials that have...
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Branded Products on OTA's Organic Pages Onlineota
The Organic Pages Online directory features a listing of branded products including fertilizers, seeds, and pest control products for producers...
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Farm Supplies Listings on OTA's Organic Pages Onlineota
Farm Supplies available on this site run the gamut of organic production inputs, such as fertilizers, soil amendments, irrigation supplies, pest...
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Horticultural Products on OTA's Organic Pages Onlineota
This OTA listing features organic farm, lawn, and garden products, ranging from biological controls, products for controlling fungus, fertilizers,...
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Organic Fertilizers & Soil Amendment Products on OTA's Organic Pages Onlineota
This listing features fertilizer and soil amendment companies located throughout the US with products for organic farms and horticultural operations.
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Suppliers of Organic Fertilizers, Rock Minerals, Composts, and Pelletized Poultry Litter in the Deep South, from ATTRAota
Organic farmers and gardeners use natural and organic soil amendments that are not commonly found in garden centers and farmers cooperatives. This...
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Organic Trade Association (OTA)
Organic Trade Association (OTA) is a membership-based business association that focuses on the organic business community in North America. OTA's...
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Calendar of Organic Trade Association Activities
OTA organizes and participates in events, trade shows, conferences and the like throughout the year. Posted events offer a wide range of networking...
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Agricultural Inputs & Classifieds Online
On these online classifieds, producers can find agricultural inputs such as organic biological controls, fertilizers, plant growing mediums, and...
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Association of American Plant Food Control Officials (AAPFCO)
Each state in the U.S., Puerto Rico and Canada has its own fertilizer regulatory program. AAPFCO is an organization of fertilizer control...
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Brand Name Materials Approved for Use for Growers
Washington State's Department of Agriculture provides a list of approved brand name materials for use in organic production. The list is...
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Harmony Farm Supply & Nursery
This company supplies organic farm and horticultural supplies and services such as irrigation systems, fertilizers, beneficial insects,...
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Homestead Organics Farm Supplies & Services
This organic farm supply company, based in Ontario, features livestock feed and supplements, fertilizers and soil amendments, pest controls, seeds...
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International Online Organic Business Database
This website features an extensive international, searchable database of organic products, services, and organizations. It can be searched by...
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Mid-Atlantic Composting Directory
This directory provides a listing of: * Compost producers and suppliers * Composting Service and Equipment Providers *Compost Information and...
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Organic and Transitional Feed, Organic Seed in Minnesota
This farmer cooperative sells a wide range of organic and transitional livestock and poutry feed, field and cover crop seeds. They also offer a...
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Organic Farm Supplies
This web page lists a variety of inputs for natural and organic agriculture and gardening in the US and Canada, with a few international resources....
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Organic Fertilizer Association of California (OFAC)fee
The Organic Fertilizer Association of California (OFAC) represents the interests of organic fertilizer producers, distributors and retailers that...
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Organic Fruit and Vegetable Web Page from Mississippi State University
This web page provides links to organic resources for southern growers, including a listing of suppliers of organic fertilizers, rock minerals,...
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Organic Growers Input Supply Links
Organic growers will find a list of organic farm and garden suppliers that market products in the US and internationally. Suppliers sell products...
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Peaceful Valley Farm & Garden Supply
This company sells organic farm and garden supplies across the US, including animal feed, fertilizers, feed and nursery stock, weed and pest...
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Searchable Database of Organic Farm Supplies
Producers can search this North American database for organic farm inputs such as fish fertilizers, humates, compost, growing media, biological...
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Seven Springs Farm Organic Farm Supplies
This company is a source for organic farm supplies ranging from liquid fertilizers, soil amendments, animal supplements, pest management products,...
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Vermont Compost Company Sells Organic Compost
Vermont Compost Company was founded by organic crop growing professionals to meet the need for high quality composts and compost based, living soil...
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Western Alfalfa Milling Company's Organic Feed & Soil Additive
This company, located in Saskatchewan, Canada, sells certified organic alfalfa pellets as animal feed and also for use as a soil admendment.
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Wood Creek Farm Supplies
This company sells natural and organic products. Their organic products are numerous, including organic seeds, animal supplements, grower supplies,...
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