Grower’s Handbook:- Chapter 15: Mycorrhizae

Grower’s Handbook

Chapter 15: Mycorrhizae

Mycorrhizae are beneficial fungi that form a natural symbiotic relationship with plant roots. This partnership enhances root performance by improving nutrient uptake, supporting plant health, and helping protect the growing medium from harmful pathogens.


What Are Mycorrhizae?

The term mycorrhiza is derived from the Greek words mykēs (fungus) and rhiza (root). These beneficial fungi colonize plant roots, creating a mutually beneficial relationship in which both the plant and the fungi benefit.


Benefits of Mycorrhizae

  • Improve nutrient and water uptake.
  • Help protect the root zone against soil-borne pathogens.
  • Support stronger root development.
  • Promote healthier and more vigorous plant growth.

How Mycorrhizae Improve Nutrient Uptake

Physical Benefits

  • Mycorrhizal fungal threads (hyphae) are much finer than the smallest root hairs.
  • They can penetrate tiny pores in the growing medium that roots cannot access.
  • This significantly increases the surface area available for water and nutrient absorption.

Chemical Benefits

  • Fungal cell membranes function differently from plant cells.
  • They release beneficial compounds and ions that help make nutrients more available to plants.
  • This improves nutrient availability and overall root efficiency.

Protection Against Pathogens

Once established within the growing medium, mycorrhizae compete with harmful microorganisms for space and resources.

  • Colonize the root zone before many pathogens can establish themselves.
  • Help reduce the risk of root diseases.
  • Contribute to a healthier microbial environment around the roots.

When Are Mycorrhizae Most Effective?

  • Provide the greatest benefits in nutrient-poor growing media.
  • Support healthy root development during the early stages of plant growth.
  • Can improve nutrient efficiency throughout the crop cycle when healthy fungal populations are maintained.

Application Considerations

Many mycorrhizal species are sensitive to environmental conditions and high nutrient concentrations.

  • High EC levels may reduce fungal survival.
  • Regular applications may be beneficial to maintain active fungal populations.
  • Always follow the manufacturer’s recommendations for application rates and frequency.

Using Mycorrhizae with Eazy Plug

The natural composition of Eazy Plug products provides a suitable environment for beneficial microbial activity, including mycorrhizal fungi.

  • Eazy Plug products are compatible with most commercial mycorrhizal inoculants.
  • Natural compost teas containing beneficial microorganisms are also commonly used by growers.
  • Healthy microbial populations can contribute to improved root performance and overall plant vigor.

Best Practices

  • Apply mycorrhizae early in the crop cycle for maximum root colonization.
  • Avoid excessive EC levels that may reduce fungal activity.
  • Maintain a healthy root environment through proper irrigation and drainage.
  • Use high-quality mycorrhizal products from reputable suppliers.
  • Follow the recommended application schedule for consistent performance.