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Harrell’s EarthMAX is a unique soil additive designed to promote maximum soil and plant health in turf and ornamental programs.
Learn about nitrogen's role as a major nutrient from plant and soil expert Lynn Griffith!
This course covers common nutrient deficiencies in plants.
Learn about coir as a media component in potting mixes
Learn about water quality and how it impacts plants and soil.
In this learning course, Lynn Griffith discusses the primary nutrient Phosphorus and how it relates to horticulture.
Learn Techniques for Taking Soil & Tissue Samples for Testing!
Ever noticed that plants respond better to rain water than to irrigation water?
This course describes how soluble salts impact fertilizers and plants.
Learn more about Bio-MAX 4-0-0 and test your knowledge!
Core aerification explained!
Learn how Bicarbonates affect soil and plant health
This learning course by Lynn Griffith covers the important nutrients involved in growing roses.
Learn about boron's function in plants, and how to check for (and correct) deficiency and toxicity situations.
If you are considering a golf course renovation, allow us to at least show you what a Polyon grow-in program can do!
Turf & Landscape
Discusses Harrell's Core Values
For maximum root development and firm playing surfaces
on February 27 by Raymond Snyder
in Golf, Granular Fertilizer, Horticulture, Specialty Agriculture, Sports Turf, Turf & Landscape
All controlled-release fertilizers are not equal. Polyon continues to be the industry standard.
on February 21 by Travis Klosterboer
in Golf, Turf & Landscape, Weeds
This year's warm winter is presenting turf managers with spring weed control challenges.