Your Trusted Agronomy Partner
Planet Earth Agronomy is an agronomy technology company and new product development business providing quality products, outstanding insight, and best-in-class service to farm businesses seeking to produce higher yields and greater return on investment while safeguarding their land for future generations.
Providing products, technology, and tools to the people who grow the crops that feed the world.
How We Work
Our "Farmer First" Approach
We exist to solve agronomic problems from the ground up, ensuring every recommendation is backed by hard data and proven in the field.
1
Rigorous, High-Quality Research
We don't guess; we test. Our foundation is built on using randomized, replicated test blocks across diverse soils and climates to generate the most robust and repeatable research data possible.
2
Independent Validation
We prove our performance in the real world. Beyond our own rigorous internal vetting, our products are continually validated through third-party and university trials.
3
Best-in-Class Evaluation Technology
We measure success from the roots to the canopy. We evaluate product performance using advanced technology, including drones, satellite imagery, and RNA and DNA soil and plant testing.
We pair these modern diagnostics with traditional agronomic measurements such as biomass, weight, height, and density to get a complete picture of crop health.
4
Enhancing Tradition
We know what it takes to farm profitably, and we don’t abandon the agronomic tools that have worked for generations — we improve them every season. By bridging advanced biology with traditional chemistry, we make your standard inputs work harder and more efficiently.
Our Approach to Choosing Products For your farm
THE PLANET EARTH AGRONOMY PYRAMID
Our Agronomy Pyramid explains how we keep our decision-making tied to our ethos of helping farmers and growers retain or grow profit whilst providing better care for their soil and crops. Typically, when we are brought onto a farm, it’s because something isn’t working — yields are low, disease is present, or crops are underperforming. This is how we build solutions from the ground up.
FINANCIAL HEALTH
ROI drives adoption. Farmers will only adopt technologies that improve their bottom line. Every product or technology we bring to market must demonstrate clear economic value on the farm.
HUMAN HEALTH
Healthier crops produce better food for people and animals. We focus on enhancing the nutrient density of the harvest and improving the safety of the application process for the farmer.
PLANT HEALTH
Improving soil health leads directly to stronger, healthier plants. We identify limiting factors and push the crop through critical stress periods to improve yield and performance.
SOIL HEALTH
We begin with soil health and nutrient availability, because in over 90% of cases, the root issue behind underperforming crops is soil imbalance or poor soil health.
Response
All-in-one adjuvant combining drift control, water conditioning, and pH adjustment.
Best used for:
Spray Performance & Weed Control
Eclipse
Eclipse is a balanced 6-0-1 EDTA-chelated starter fertilizer delivering fully soluble zinc, manganese, and copper.
Best used for:
Nutrient Use Efficiency
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10-16-38 Water Soluble
High potassium water soluble fertilizer designed for fertigation and foliar nutrition programs.
Best used for:
Nutrient Use Efficiency
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Carbon Cycle
Carbon Cycle is a concentrated microbial residue management and nutrient cycling system built to improve soil function, accelerate decomposition, and unlock the fertility already present in your field.
Best used for:
Soil Health and Biology
Solubor
Highly soluble dry boron fertilizer with 20.5% boron for rapid foliar uptake.
Best used for:
Reproduction
Response PX
An all-in-one spray adjuvant designed to improve coverage, deposition, and nutrient efficiency in every spray pass.
Best used for:
Spray Performance & Weed Control
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AmeriKelp Organic
An organic-certified kelp-based biostimulant that improves plant vigor, enhances nutrient efficiency, and supports stress resilience in organic production systems.
Best used for:
Reproduction
PopUp Ultra
All-in-one in-furrow starter combining biostimulants, microbes, and micronutrients for maximum early growth.
Best used for:
Stand Establishment
Intervene Ex
Intervene EX is an advanced all-in-one adjuvant featuring the spray enhancement of Intervene plus a boost of N, P, and micros.
Best used for:
Spray Performance & Weed Control
Bio HSi
PEA Bio HSI is a Specialized microbial blend engineered to improve crop tolerance and soil performance in high-salt conditions.
Best used for:
Soil Health and Biology
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Solubor Flow
Liquid boron fertilizer designed for easy handling, rapid mixing, and efficient foliar uptake.
Best used for:
Reproduction
YieldEDGE BioWonder
Dry planter-box seed lubricant and microbial inoculant for small grains.
Best used for:
Stand Establishment
Runway Premium
Water conditioning and drift reduction agent.
Best used for:
Spray Performance & Weed Control
Planet Earth Organic Trashbreaker
A microbial residue digester that accelerates stubble breakdown and restores soil biology.
Best used for:
Soil Health and Biology
Potato Bio
An advanced biostimulant and microbial blend designed to mitigate salt stress and optimize potato production.
Best used for:
Soil Health and Biology
Bio for Corn
PEA Bio for Corn is a concentrated microbial blend designed to enhance nutrient cycling, nitrogen availability, and soil health in corn.
Best used for:
Soil Health and Biology
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Larry Fiene
Founder/CEO
CEO and Co-Founder of Planet Earth Agronomy, Larry leads the company’s research-driven agronomy platform, delivering tested biostimulant and nutrient solutions across 15 U.S. states and Canada while serving on multiple industry boards and earning national recognition for agricultural leadership.
Jake Fiene
Operations Lead
Jake Fiene combines hands-on agricultural experience with a systems-level role at Planet Earth Agronomy, supporting product formulation, manufacturing, logistics, and customer success. He focuses on delivering consistent, field-ready solutions by aligning product performance with real-world conditions.
Louisa Ewert
Canadian Sales Lead and Executive Assistant
Louisa brings a lifelong connection to agriculture, entrepreneurship, and plants to her role with Planet Earth Agronomy. Her experience in business development, sales, and building strong customer relationships complements her work as Planet Earth Agronomy’s Canadian sales lead and Administrative Assistant.
Taylor Moore
Technical Sales Lead
Taylor Moore is a Purdue University graduate with a degree in Agricultural Sales and Marketing and a minor in Agronomy. Her experience in agricultural biologicals and crop insurance has given her a well-rounded understanding of the industry and the challenges producers face.
Grace Geils
Research & Product Development Manager
Grace Geils holds bachelor’s degrees in Chemistry and Biology from the University of Wisconsin-Stevens Point. Grace joined Planet Earth Agronomy as an intern in 2024 and transitioned to a full-time role in May 2026. She oversees field trials and laboratory testing, helping ensure PEA products are thoroughly evaluated and deliver the quality and performance farmers can rely on.
Meet Our Team
DON'T TAKE OUR WORD FOR IT
See the Results from Growers in the Field
I like their practicality really at the end of the day, they value the implementation and they understand that it's an ROI game...[the Planet Earth Team] are a tremendous wealth of information... their information is the key, you know, and they have the experience and everything needed to guide you in a direction that's going to be synergy.
Kevin D.
- Distributor, Upper Mid-West
I would highly recommend Planet Earth to anybody that has questions about the biological world, the biostimulants, something that they want to add to their portfolio and be able to offer customers and be comfortable with proven products and a lot of knowledge.
Troy T.
- Retailer, High Plains
We take their advice. Yes. There's a lot of good and there's a lot of bad microbiology in the industry and with the research they have here at Planet Earth Agronomy, we've never been steered in the wrong direction.
Nelson M.
- Retailer, South Dakota
We met Larry and the guys at Planet Earth Agronomy and everything's been great. They've been awesome to us and we just hit things off right away.
[They are] more about the passion than thier bottom line.
Chris H.
- Grower, South Dakota
A lot of companies, they can get a product and take it to the market and have a big year with it and they disappear off the map. They got their money, they're gone onto the next thing... and that's just not the approach with [Planet Earth Agronomy]. And so their beliefs and who they are to the core is what makes me want to work with them.
Andy J.
- Grower, South Dakota
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