Biologicals and bio-active materials show significant effects when they are applied with seed
Coating or dressing seed is a well-established way to get active chemicals into the soil to protect the plant from the moment of its germination. Biologicals and bio-active materials are now starting to show significant effects when they are applied with seed. Some of the simplest applications have been physical mixes of rhizobia with legumes. When planted the rhizobia germinate alongside the newly sprouted roots and develop nitrogen fixing nodules. This technique has also been used with mycorrhizae, simply tumbled with grass and cereal seeds. Again the mycorrhizae germinate on the formation of the root system and populate the roots to provide extended uptake of a whole range of nutrients.
Simple mixing is not satisfactory for smaller smoother seeds as they can separate in the pack and this results in the seeds being sown either before or after the bio-input. New water soluble products combining biological cultures of bacteria, fungi and mycorrhiza together with nutrients, germination promoters and bio-stimulants have been developed and are placed on the seed either as a dressing for on the spot prior to sowing or as a dried coating. Methods of producing dry coated seeds are now available that do not require high temperature drying, which can damage the bio-culture.
It is now possible to sow seeds treated with protective organisms such as Trichoderma and bacilli that combat pathogenic fungal diseases such as Phytophthora, Pythium, Fusarium and Rhizoctonia. Treatments with plant saponins increase germination rates and treatments with mycorrhizae enable the establishment of these specialised fungi enabling the plant to take up much higher levels of applied nutrients.
Mycortex contains mycorrhizae bringing great benefits to the plants that associate with them. The mycorrhizae grow in and around the roots and boost the root zone’s ability to take up nutrients. The beneficial microbes in Mycortex also colonise the root zone and provide effective protection against fungal diseases.
Mycortex is available in a granular or a fully dispersible powder suitable for seed coatings and drip irrigation.