Golden wheat field at harvest

Free Resources for Working Farmers

BulkFarmer Learning Center

Expert guides on biological farming, soil health, and AgConcepts products — written for working farmers, not marketing departments.

23 guides available

Education

What Are Biological Fertilizers? A Farmer's Complete Guide

Learn how biological fertilizers differ from synthetic inputs, how enzyme products work in soil, and why leading operations are adding biologicals to their programs.

8 min readMarch 10, 2025
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Education

Humic Acid for Farms: What It Does and Why It Works

A deep dive into humic acid chemistry, its leonardite source, how it improves CEC and nutrient uptake, and practical application rates for row crops.

7 min readMarch 18, 2025
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Education

Soil Health 101: Building Living Soil That Grows Better Crops

Understand the soil food web, why microorganisms are essential, how to identify degraded soil, and practical steps to rebuild biological activity.

9 min readMarch 25, 2025
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Comparison

Biological vs. Synthetic Fertilizers: Real-World Farm Comparison

An honest side-by-side comparison of biological and synthetic fertilizers — cost per acre, yield data, long-term effects, and how leading operations combine both.

8 min readApril 2, 2025
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Trends

The Biological Revolution: Why Thousands of Farms Are Switching

Market trends, regulatory shifts, and the economic drivers behind the rapid adoption of biological inputs across American agriculture.

6 min readApril 10, 2025
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How To

How to Apply Liquid Biological Fertilizers: Complete Equipment Guide

Everything you need to know about applying liquid biological fertilizers — ground rigs, aerial, irrigation injection, and in-furrow — with specific guidance for AgConcepts products.

10 min readApril 18, 2025
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Buying Guide

IBC Tote Buying Guide for Farms: 275-Gallon vs 330-Gallon

Everything you need to know about IBC totes for farm liquid storage — size differences, pump systems, handling, and cost per gallon calculations.

7 min readApril 25, 2025
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Buying Guide

55-Gallon Drum Fertilizer Guide: Pumps, Storage & Handling

Drum specs, pump selection, storage best practices, cost per gallon comparisons, and acreage coverage calculations for 55-gallon drum purchasing.

6 min readMay 2, 2025
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Reference

AgConcepts Application Rate Reference Chart

Complete application rate reference for all AgConcepts products across major crops, application methods, and timing — a quick-reference guide for the field.

5 min readMay 10, 2025
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Crop Guide

Using AgZyme on Corn: Application Guide & Expected Results

A complete crop-specific guide to applying AgZyme on corn — timing by growth stage, tank mixing, expected results, cost per acre calculations, and field application tips.

8 min readMay 18, 2025
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How To

How to Read Your Soil Test Results (And What to Do About Them)

A practical guide for row crop farmers on interpreting soil test reports — pH, CEC, phosphorus, potassium, organic matter, and how biological inputs address the most common deficiencies.

9 min readFebruary 1, 2026
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Reference

Biological Fertilizer Application Calendar: Timing by Region and Crop

Month-by-month application timing for AgConcepts biological products across major US crop regions — from pre-plant through harvest for corn, soybeans, wheat, and specialty crops.

7 min readFebruary 5, 2026
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Education

Soil Compaction: What Causes It, How to Identify It, and How to Fix It

A complete guide to diagnosing and addressing soil compaction — causes, penetrometer readings, tillage options, biological inputs like Pervaide, and long-term prevention strategies for row crop farmers.

8 min readFebruary 10, 2026
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Reference

Biological Farming Tax Benefits & USDA Cost-Share Programs in 2026

Federal and state programs that pay farmers to adopt biological soil health practices — EQIP, CSP, RCPP, and Section 179 deductions for biological inputs.

10 min readFebruary 21, 2026
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Education

USDA Organic Transition: Using Biologicals to Bridge the 3-Year Gap

How biological inputs help conventional farms maintain yields during the 3-year USDA organic certification transition period. What's approved, what's not, and how to plan.

9 min readFebruary 21, 2026
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Education

University Research on Biological Fertilizers: What the Studies Actually Show

A farmer-focused summary of peer-reviewed research on biological fertilizer performance from Iowa State, University of Illinois, USDA-ARS, and other land-grant universities.

12 min readFebruary 21, 2026
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Buying Guide

Where to Buy AgZyme — Bulk Pricing, Drums & Totes Available Online

AgZyme is an AgConcepts enzyme biological fertilizer. This guide explains where to buy it in bulk, how pricing compares across channels, and why BulkFarmer.com is the only authorized online retailer.

6 min readApril 1, 2025
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Buying Guide

Where to Buy Super Hume — Bulk Humic Acid Online

Super Hume by AgConcepts is a concentrated leonardite-sourced humic acid. Find out where to buy it in bulk drums and totes, current pricing, and how it compares to other humic acid products.

5 min readApril 5, 2025
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Comparison

AgZyme vs. AgroThrive: Which Biological Fertilizer Wins for Row Crops?

Side-by-side comparison of AgZyme (AgConcepts) vs. AgroThrive organic fertilizer: ingredients, application rates, crop performance data, and cost per acre for corn, soybeans, and wheat.

8 min readApril 10, 2025
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Comparison

AgZyme vs. AgriGro: Comparing Biological Fertilizer Programs for Corn and Soybeans

Detailed comparison of AgZyme (AgConcepts) vs. AgriGro biological products: Soil Activator, FoliarBlend, and TurfBiotics vs. AgZyme, Enhance, and Super Hume for row crop applications.

9 min readApril 15, 2025
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Buying Guide

Buying Biological Fertilizer Direct vs. Through a Dealer: What You Actually Pay

A frank look at the 15–40% markup farmers pay when buying through agricultural distributors — and how to calculate the true cost of dealer-network purchasing for biologicals and inputs.

7 min readApril 20, 2025
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Buying Guide

The Complete Guide to Buying Humic Acid in Bulk: Drums, Totes & Freight

Everything you need to know about buying liquid humic acid in bulk — comparing concentration levels, drum vs. tote economics, freight costs, and what to look for in a quality product.

10 min readApril 25, 2025
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Reference

AgConcepts Product Trial Data: What University Research Shows

A compilation of independent university and third-party trial results for AgZyme, Super Hume, and other AgConcepts biological fertilizer products — with methodology notes and farmer trial summaries.

10 min readMay 1, 2025
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