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Greenhouse and Protected Cultivation: Building a Precision Fertigation Program
In an open field, the soil forgives mistakes. It buffers pH swings, holds a reserve of nutrients, and releases them slowly through microbial activity. Inside a greenhouse, especially a soilless one, none of that safety net exists. Every nutrient the plant receives...
Salinity and Alkaline Water: Managing Fertilizer Programs in Difficult Irrigation Conditions
Across much of the Middle East, North Africa, and the world's irrigated drylands, the water that keeps farms alive is also slowly working against them. It carries salt. It runs alkaline. It is loaded with bicarbonate. And it quietly wrecks fertilizer programs that...
How to Read a Fertilizer Label: A Buyer’s Guide to NPK, Chelates, and Purity Claims
Two fertilizer bags sit side by side. Both say "NPK 20-20-20 with micronutrients." One costs 40 percent more than the other. A buyer who only reads the front of the bag has no way to tell why, and usually picks the cheaper one. A buyer who knows how to read the full...
Specialty Fertilization for Brazilian Export Agriculture: Citrus, Coffee, and the Path to Premium Yields
Brazil consumes about 40 million tons of fertilizer per year. Roughly 85 percent of it is imported. Supply is concentrated in a small number of mega-suppliers, mostly out of Russia, Belarus, Morocco, and China. When global commodity fertilizer markets seize up, as...
Blueberry Fertilization in Peru: Specialty NPK Programs for the World’s Top Blueberry Exporter
Peruvian blueberries don't grow in soil. They grow in pots filled with coconut coir, drip-irrigated several times a day, with every nutrient delivered through the fertigation tank. The entire industry is built on this substrate-based production system, and it's the...
Coffee Fertilization in Colombia: Specialty NPK Programs for Volcanic Soils and Premium-Grade Yields
The soils of Colombia's Eje Cafetero are some of the strangest agricultural soils on earth. They're young, formed from volcanic ash less than ten thousand years ago. They're high in organic matter, often 8 to 12 percent in the topsoil, two to three times richer than...
Avocado Fertilization in Mexico: Calcium, Boron, and NPK Programs for Export-Quality Hass Production
Mexican Hass avocado moves through one of the most demanding export pipelines in agriculture. From a packout in Uruapan, fruit ships 1,500 miles to a US distribution center over 5 to 7 days in cold chain. It gets graded at the Mexican packing plant, again at the US...
Cut Flower Fertilization for Kenyan Exporters: Fertigation Programs That Meet European Quality Standards
A Kenyan rose grower's job isn't to grow roses. It's to land a flower at the Royal FloraHolland auction in Aalsmeer, or at a Tesco distribution center in Reading, that meets a specific set of measurable quality criteria - stem length, stem strength, head size, color...
Cocoa Fertilization in Nigeria: Specialty NPK and Micronutrient Programs to Close the Yield Gap
Nigeria is the world's fourth-largest cocoa producer. It used to be the second-largest. The slip down the rankings wasn't because Nigerian farmers stopped growing cocoa - it was because yields per hectare stayed flat for thirty years while Côte d'Ivoire and Ghana...