Biological seed treatments that enhance biofertility include microbial solutions which improve the availability and uptake of critical nutrients.
Nitrogen-fixing microbial inoculants
Commercial rhizobia inoculants are developed to out-perform indigenous rhizobia in the soil, providing improved nitrogen fixation.
A high-performing inoculant has two characteristics:
Infectiveness is the ability of a rhizobia strain to provide excellent nodulation. The most successful strains are chosen for their ability to successfully compete against other strains and become the primary source of nodulation. We also choose rhizobia for environmental survivability and the ability to infect a legume’s cultivars.
Effectiveness of a rhizobia strain is the ability to efficiently fix nitrogen. Monsanto BioAg continuously field-tests and chooses strains that have proven to be dependable and efficient fixers of nitrogen.
The advanced technology found in liquid Cell-Tech® contains the most infective and effective rhizobia. This allows for improved nodulation even in cooler soils, thus increasing yield potential as planting conditions change.
Phosphate-solubilizing microbial inoculants
Much of the soil and applied phosphate fertilizer particles are tightly bound to the soil, making it unavailable to crops. A small percentage of bound phosphate will gradually be converted into available forms, but this does not happen quickly or efficiently enough to meet the demands of high-yielding crops. At least 25 percent of the phosphate in soils never becomes available, making it crucial to get the most efficient use of fertilizer phosphate. These inoculants help to release some of the phosphate making it more available for the crop to use.
JumpStart® and TagTeam® products contain the naturally occurring soil fungus Penicillium bilaii, which was discovered by Agriculture and Agri-Food Canada. P. bilaii colonizes (grows along) plant roots, releasing compounds that release the bound mineral forms of soil and fertilizer phosphate, making it more available for the crop to use. Penicillium bilaii does not replace the need for phosphate fertilizer, but does provide crops access to more nutrients for higher yield potential.
Biologicals for nutrient uptake
The biologicals Trichoderma virens and Bacillus amyloliquefaciens found in QuickRoots® have the ability to release nitrogen, phosphate and potassium in the soil that would not be readily available to the plant. The resulting benefit of improved nutrient availability is expanded root volume providing improved plant growth and yield potential.