Our History

Since its inception, Earthfort has worked to bring soil testing, education and products to the farmers of the world; from the US to Ukraine, Haiti to Israel and all throughout Europe, Africa, Central and South America and Asia, expanding the reach to help farmers rebuild their soils for a profitable today and a sustainable tomorrow.

Through the Years

Founded in 2004 to address the needs of correcting issues of the specialized testing developed by a team of researchers from Colorado State University. Finding solutions for biological imbalances in the soil with unique soil amendment products and practices.

In 2007, Earthfort developed the Dirt Simple line of Compost extracting equipment. Enabling farmers to create small scale biological inoculants to enhance their soil and extend the useful life of compost.

In 2010, relocated to current facilities and began development of Soil ProVide, a shelf stable, broad spectrum inoculant to help farmers at a larger scale than compost extraction allowed for.

In 2011, introduced Soil ProVide and Soil ReVive. Soil ReVive is a complementary product to Soil ProVide, a food resource to feed and stimulate the microbes in Soil ProVide. Both products are certified organic.

Meet the Earthfort Family

Anel Espinosa is the Marketing Specialist at Earthfort. While he joined our team as our front desk office assistant, he talents were quickly realized in social media, marketing, and creating hand drawn art pieces. You will recognize many of his art pieces in our marketing materials and social media posts. When not hard at work, he is cultivating and propagating plants in his home garden. He enjoys going for a run and being outdoors.

Earthfort Anel Espinosa
Earthfort Kinser Nyden

Kinser Nyden is the Communications Director and Executive Assistant at Earthfort. When she’s not moderating our educational programs or coordinating events and client visits, she’s working on developing marketing strategies involving consumer outreach. She is passionate about developing professional relationships with Earthfort clients and providing excellent customer service. Kinser is fluent in Spanish, and holds dual Bachelor’s degrees in Communications and Spanish Language and Culture. Using her background of international travel experience, she is able to provide innovative, leading-edge solutions to the challenges and needs of our clients. Kinser is happiest playing her guitar Ernie, with a perfect cup of coffee and a good book nearby.

Cathy Brenizer has been our Production and Shipping Manager at Earthfort since 2014. Providing agricultural services is a perfect fit, as Cathy grew up on a farm in the Midwest and connects with our clients. Growing up her father told her “Cathy –if you take care of the land –it will take care of you.” Cathy believes working for Earthfort is a great job because we have the opportunity to work with folks who want to restore the life in their soils.

Earthfort Cathy Brenizer
Earthfort Jon Bianchini

Jon Bianchini, Production/Shipping – Jon manufactures our Soil Provide, Soil Revive, and ships out our customer orders. He values hard work, integrity, and believes the work you do reflects on yourself. He loves Oregon, and is an avid outdoorsman. With Earthfort, he feels like he is making an impact on our future.

Chandra Wyatt is the Chief Operations Officer for Earthfort. Since 2009, providing high-level oversight of finances, logistics and HR duties. She formulates strategy, improving performance, procuring material and resources, and securing compliance. As a person who loves the outdoors and hiking, Chandra is passionate about helping land managers improve agriculture in an environmentally friendly way.

Earthfort Chandra Wyatt

Matthew Slaughter is the Founder, President and Laboratory Director of Earthfort. He is primarily focused on customer support through consultation and education, but he is also responsible for product research and development. As the creator of Earthforts products, (Soil ReVive, and Soil ProVide) he is constantly striving to help customers understand and use the products to the greatest advantage of the end-users. As a scientist, philosopher, and poet, Matthew is always learning and attempting to integrate natural, holistic processes into agriculture. Even while growing up, he was deeply connected with nature, from observing bullfrog development from egg to tadpole to full-grown frogs at the age of nine, to spending countless hours and days hiking, camping, and canoeing with family and the Boy Scouts. If you can ever find him not working at Earthfort, you might find him walking in the woods of Oregon with Kong, a 70 pound Black Chow Chow, or creating music or some other art with his wife of over 25 years, Melissa.

Tender leaves sprout
and the plant
bursts from the moist soil
bringing life
where there was a void
filling the space
as blooms and bees
conspire to bring forth
a fruit
and the cycle
of eternity
keeps spinning


Matthew D Slaughter, 7 June 2020


What Is Soil Biology?

Soil microbiology is the microscopic community of organisms that play a vital role in determining productive soil characteristics and a healthy habitat for plant growth and long term establishment. The most productive soil systems have balanced populations of flourishing organisms, including bacteria, fungi, protozoa and nematodes. Bacteria and fungi break down and consume the organic matter and mineral content of soils, creating a storehouse of nutrients that are released slowly over time. Predatory organisms, such as protozoa and nematodes, consume the bacteria and fungi, releasing nutrients into the root zone of your plants naturally. They consume and/or out compete disease-causing organisms along the way, helping manage pathogenic populations and reduce monetary loss from infections.

What Are The Benefits Of Healthy Soil?

~ Reduced water usage
~ Improved nutrient cycling
~ Increased drought resistance
~ Deeper root growth
~ Improved soil structure (less compaction)
~ Increased disease resistance

What Is Plant Succession?
Succession is the process of change in the species structure of an ecological community over time. A plant community gradually or rapidly replacing another can result from developmental changes in the ecosystem itself; or from disturbances such as wind, fire, volcanic activity, insects and disease, or harvest. Different plants require different ratios of fungi and bacteria, based on their successional growth traits. The biological approach seeks to match crops with their ideal soil habitat and associated microbial communities. Some plants are naturally acclimated to fungally-dominated forest soils; others are acclimated to grasslands that are more bacterially-dominated. The biology in the soil can enhance or impede plant growth based on the symbiotic or antagonistic relationships between microbes and plants. Conditioning the soil’s biology to compliment a specific crop will increase nutrient uptake, and can give the desired crop an edge over weeds they try to compete against.

What Type Of Soil Environment Do Plants Need?

Broccoli, cabbage,leafy vegetables and annual grasses (Bacterial, 0.50-2.00 fungi to bacteria)

Row Crops (including corn, wheat and soybeans) and perennial grasses (Balanced, 1.00-3.00 fungi to bacteria)
Cane berries, fruiting vegetables (tomatoes, peppers, melons) (Slightly fungal, 3.00-5.00 fungi to bacteria)
Broadleaf Trees/Shrubs/Vines (Very fungal, 5.00 to 10.00 fungi to bacteria) 
Conifers (Extremely fungal, 10.00+ fungi to bacteria)
What Is Compost?

Compost is decayed organic material

Modern, methodical composting is a multi-step, closely monitored process with measured inputs of water, air and carbon- and nitrogen-rich materials. The decomposition process is aided by shredding the plant matter, adding water and ensuring proper aeration by regularly turning the mixture. Worms and fungi further break up the material. Aerobic bacteria manage the chemical process by converting the inputs into heat, carbon dioxide and ammonium. Ammonium is further converted by bacteria into plant-nourishing nitrites and nitrates through the process of nitrification.

Do I Have Enough Mycorrhizal Spores?
The quickest and best way to know if you have enough spores is to plant then take a sample of the roots and have it tested for mycorrhizal colonization. No matter how many spores you add, they must colonize roots to be successful. Low to no colonization rates can occur if spores are not within close range of roots when they germinate. If they are not in close proximity to roots, they will die. If your soil is in good health, the mycorrhizal colonization process happens naturally. If you get the fungal and bacteria counts in balance and have good numbers of protozoa, mycorrhizal colonization will take place without any product inputs.
Mycorrhizal Inoculum - Endo, Ecto, or Ericoid?
For row crops, vegetables, grass, most berries, shrubs and deciduous trees, vesicular-arbuscular mycorrhizal fungi (VAM) are the fungi of choice, while conifers and some late-successional deciduous trees require ectomycorrhizal fungi. Ericaceous plants, such as blueberries and rhododendrons, need Ericoid mycorrhizae. Earthfort tests for all three forms of mycorrhizal colonization.
See Data Sharing Guidelines

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635 SW Western Blvd., Corvallis, Or

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