AgConcepts Authorized Reseller
Save Money. Improve Soil. Increase Yields.
Drop-shipped direct to your farm. No distributor markup. 90-gallon minimum.
Enhance, ZyDrive, PervaideMax & ProMax — AgConcepts biologicals at wholesale bulk pricing. New to biologicals? Plain-English below ↓
Spring Application Window Open—Orders placed now ship in time for pre-plant and at-plant applications. Request bulk pricing →
0+
farms served to date
$2–$5
avg cost per acre (180-gal pallet)
0
states we ship to via LTL freight
30%
typical synthetic N reduction by year 2
Direct from AgConcepts
Authorized reseller. Every product ships from the source.
90-Gallon Minimum
Pallets and totes direct to your farm. Priced for serious growers.
Year 2 Guarantee
If it doesn't pay for itself by Year 2, we redesign your program free.
Talk to an Agronomist
Free program design — no purchase required.
Biology You Can See
Healthier roots. Richer soil. Better harvests. This is what biological inputs do in the field.
Active Soil Biology
Deeper Root Systems
Season-Long Growth
Better Harvests
What Biological Inputs Actually Do to Your Soil
On the left: compacted, biology-depleted soil with limited root access and poor nutrient cycling. On the right: the same soil profile after 2 seasons of biological inputs — dense root networks, active microbial communities, and dramatically improved structure.
Root depth increases 30–60% in biological program fields
Soil microbial biomass up 22–38% after 2 seasons
CEC improvement of 0.8 meq/100g average in university trials
Featured Products
AgConcepts most popular biological inputs in bulk pricing.
Enhance
Foliar Fertilizer
Delivers phosphate and key nutrients directly through the leaf during the plant's most demanding growth stages.
Foliar fertilizer for critical growth transitions — vegetative-to-reproductive, post-stress recovery, and peak demand windows. Alfalfa, potatoes, wheat, and soybeans.
ZyDrive
In-Furrow Biological Inoculant
Puts billions of root-colonizing microbes directly at the seed for maximum early-season establishment.
Seed treatment and in-furrow inoculant with nitrogen-fixing bacteria, phosphate-solubilizing organisms, and mycorrhizal fungi. Delivers biological support exactly where germination happens.
ProMax
OMRI-Listed Biopesticide
Kills nematodes and soil fungi on contact — zero re-entry interval, apply right up to harvest day.
Thyme oil-based soil fungicide & nematicide. OMRI-Listed organic, EPA-exempt. REI 0 days, PHI 0 days. Available in 90-gallon and 275-gallon sizes.
New to Biologicals? Start Here.
The Recommended Starter Combination
Not sure where to begin? Start with this two-product combination — Enhance and ZyDrive work together to deliver nutrients above ground and build biology below, covering the two most critical crop demands at once.
Enhance — The Foliar Boost
Delivers phosphate and essential nutrients directly through the leaf during peak demand windows — vegetative-to-reproductive transition, stress recovery, and high-yield push stages.
ZyDrive — The Root Builder
In-furrow and seed treatment inoculant that establishes nitrogen-fixing bacteria, phosphate solubilizers, and mycorrhizal fungi directly at the seed — where they build a biological foundation for the whole season.
What to Expect, Season by Season
Season 1
Faster residue breakdown, improved soil aeration, visible crop response to released nutrients.
Season 2
Measurable increase in soil organic matter. Most farms reduce synthetic N by 15–25% without yield loss.
Season 3+
Self-sustaining soil biology. Lower input costs, higher organic matter, reduced compaction.
Plain-English Guide
New to Biological Farming? Here's What These Terms Actually Mean.
No agronomist jargon. Just simple explanations for the concepts you'll see on product pages.
Biological / Microbial Inoculant
Adding helpful microbes to your soil — like giving it probiotics. They break down nutrients and make them available to your crop roots.
Enzyme Activator
Speeds up nature's process of turning dead crop residue into next year's soil nutrients. Think of it as turbocharging your decomposition cycle.
Humic & Fulvic Acid
Natural soil compounds that act like a nutrient sponge — hold nutrients in your root zone so rain can't wash them away, then slowly release them to your plants.
Leonardite
Ancient compressed plant matter (similar to soft coal) that's naturally packed with humic acids. The highest-quality raw source for humic products.
Mycorrhizae
Beneficial root fungi that extend your plant's root system by up to 100x, reaching water and nutrients that roots can't access on their own.
CEC (Cation Exchange Capacity)
How well your soil holds onto nutrients instead of letting them leach away with rain. Higher CEC = more nutrients available when your crop needs them.
From the Field
What Farmers Are Saying
“We cut our synthetic nitrogen rate by 35% and still beat our five-year yield average on corn. The soil is noticeably different — better structure, better water retention. We're not going back.”
Jake Thornton
Thornton Family Farms — Central Iowa
2,400 acres corn/soy
“I was skeptical at first. But after the dry spell in August, my fields treated with Enhance held moisture way better than my untreated fields. Paid for itself that one summer.”
Maria Reyes
Reyes Organic Farm — Fresno, California
340 acres tomatoes/peppers
“Three seasons in and my root systems are dramatically deeper. My ZyDrive-treated corn showed noticeably more lateral root branching by V3 every single year. These products work.”
David Reinhardt
Reinhardt Grain — Southern Illinois
1,800 acres row crops
If It Doesn't Pay for Itself by Year 2, We'll Make It Right.
We're not going to promise you a 10x return in year one — that's not how soil biology works. What we will promise: if you run a full program for two seasons and don't see a measurable return in yield, reduced inputs, or soil health, contact us. We'll redesign your program at no charge and work with you until it does.
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The Biological Revolution
Why Farms Are Switching from Synthetic to Biological Inputs
After decades of synthetic nitrogen, phosphorus, and potassium applications, soil biology across the Midwest and beyond is depleted. Yields have plateaued. Input costs have climbed. And farmers are discovering that the answer was underground the whole time.
Biological inputs — microbial inoculants, enzyme activators, humic acids, and biological catalysts — work with your soil biology instead of replacing it. They release locked nutrients, improve water retention, reduce compaction, and cut the synthetic inputs you need to apply.
AgConcepts has spent decades perfecting biological formulas that work in real field conditions. BulkFarmer.com makes those products available at bulk pricing, drop-shipped to farms that need them.
30%
Average reduction in synthetic N applied by farms using biologicals
5–10%
Typical yield increase reported in third-party field trials
90 Gal
Minimum order — pallets and totes, priced for serious growers
48 States
LTL freight delivery to all contiguous US states
Product Categories
Three families of biological products, each solving a different challenge in your operation.
Biologicals
Microbial inoculants, enzyme activators, and beneficial fungi that rebuild soil health from the ground up. Replace synthetic inputs with living biology.
Browse Biologicals
Humic Acids
High-concentration humic and fulvic acid products derived from premium leonardite. Improve soil structure, CEC, and nutrient availability in any soil type.
Browse Humic Acids
Foliar Inputs
Chelated micronutrient complexes, plant growth promoters, and biological foliar products for rapid in-season correction and yield protection.
Browse Foliar InputsScience-Backed
What University Research Shows About Biological Inputs
12–18%
Improvement in nitrogen use efficiency in continuous corn with enzyme biologicals over 3 seasons
University of Illinois
+1.4 meq
CEC increase per 100g in sandy loam soils after two seasons of humic acid applications
Iowa State University
8–15%
Reduction in phosphorus fertilizer requirements in high-pH soils using microbial and enzyme products
USDA-ARS
5+ years
Long-term biological programs show statistically significant OM and aggregate stability gains vs. conventional-only
Ohio State University
Figures represent findings from published peer-reviewed research and USDA public-domain reports on biological soil amendments. Individual results vary by soil type, crop, climate, and management.
Farms 500+ Acres
Buying Pallets or Totes? Get a Custom Bulk Quote.
If you're purchasing 180-gallon pallets, 275-gallon totes, or multiple pallet quantities, request a bulk quote. We'll confirm pricing, freight costs, and delivery timelines for your specific location and volume.
Typical response time: same business day.
Calculate Your Cost Per Acre
Use our free cost-per-acre calculator to compare biological input programs against your current synthetic spend. Most farms find they can match or beat their current program for less.
Common Questions
Frequently Asked Questions
QWill biologicals work with my current fertilizer program?
Yes — all AgConcepts products are designed to complement your existing program, not replace it overnight. Enhance is a foliar fertilizer that integrates directly into standard spray programs. ZyDrive goes in-furrow with starter fertilizer. ProMax tank-mixes with most insecticides and herbicides. No program overhaul required.
QHow long until I see results?
Enhance works as a foliar fertilizer — results are visible within days as the crop responds to direct nutrient delivery. ZyDrive builds early-season root establishment over the first few weeks. ProMax works on contact for immediate nematode and fungal suppression. The biggest gains compound over 2–3 seasons as soil biology establishes.
QDo I need special equipment to apply these?
No. All products are liquid concentrates that go through standard sprayers, fertigation systems, or irrigation lines. They're compatible with most liquid fertilizer tanks and injection systems. No special equipment required.
QWhat's the minimum order quantity?
The minimum order is 90 gallons. Our standard unit is the 180-gallon pallet, which gives you excellent per-gallon pricing and covers 180–720 acres at standard rates. Larger 275-gallon and 330-gallon totes are available for high-volume operations. Freight is quoted per order based on your location.
QAre these products approved for organic operations?
ProMax is OMRI-Listed and EPA-exempt — fully approved for certified organic use with zero re-entry interval and zero pre-harvest interval. Enhance and ZyDrive are compatible with most organic programs; contact us for your specific certification body's requirements.
QHow do I know which product to start with?
For most farms, start with Enhance (foliar fertilizer) and ZyDrive (in-furrow inoculant). Enhance addresses in-season nutrient demand during critical growth transitions. ZyDrive builds the biological foundation at planting. Together they cover both above-ground and below-ground needs from day one.
Community
The BulkFarmer Farm Directory
Connect with other farms running biological programs. Browse the directory to find local farms near you, learn what is working in your region, and share your own results. Listing your farm is free.
Explore the Farm Directory