NPK Ratios Explained: How to Read a Fertilizer Label Properly
The three numbers on a fertilizer bag are less obvious than they look — two of them are not measuring what most people assume.
Knowledge base
Knowledge Base
Practical guides on plant nutrition, fertigation and buying fertilizer internationally — written for growers, agronomists and purchasing teams.
Latest articles
Potassium Nitrate vs SOP vs MOP: A Buyer’s Comparison
Three ways to buy potassium, with a threefold difference in price. The right answer depends on your crop, your water and what else comes…
Fertilizer Packaging, Palletisation and Container Loading Explained
Packaging decisions look administrative until a container arrives that your forklift cannot unload. Here is what to specify, and why.
Calcium in Crops: Why Blossom End Rot Is Rarely a Calcium Shortage
Soils full of calcium, crops showing calcium disorders. The explanation is not supply — it is transport, and that changes what you should do…
A Practical Guide to Fertigation: Building a Nutrient Solution That Works
Fertigation puts you in control of what the crop receives and when. This is how to build the solution properly — starting, as it…
How to Buy Fertilizer Wholesale: A Guide for Distributors and Importers
Buying a container of fertilizer is not buying a pallet, scaled up. Here is what changes, and what to settle before money moves.
How to Evaluate a Fertilizer Supplier: 12 Questions Worth Asking
Anyone can send a price list. These twelve questions tell you whether the company behind it knows what it is selling.
Fertilizer Import Requirements: A Research Checklist for the US, Australia and Brazil
Import rules are the part of a fertilizer purchase most often left too late. Here is a structured way to research any market before…
Blocked Drippers: Preventing Precipitation in Fertigation Systems
Most emitter blockages are created in the mixing shed, not in the field. Here is what reacts with what, and how to stop it.
Micronutrient Deficiencies: A Field Guide to Getting the Diagnosis Right
Six micronutrients, overlapping symptoms, and a lot of wasted spray applications. A structured way to work out what your crop is actually short of.
Iron Chlorosis in Crops: How to Identify, Treat and Prevent It
Yellow leaves with green veins are the classic sign — but several problems look identical. Here is how to confirm iron chlorosis before you…
Fe-EDDHA vs Fe-EDTA vs Fe-DTPA: Which Iron Chelate Does Your Soil Need?
Three iron chelates, three different working pH ranges, and a large difference in price. Here is how to choose the one that will actually…
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