This quality standard is enforced in countries requiring registration. This requirement can only be achieved through the use of sterile inoculants. Rhizobium inoculants can provide an economic return to the farmer in all planting situations. Land that has been flooded prior to planting will also greatly benefit from inoculation. Since 1992, MicroBio has commissioned many trials with Soybean Extension specialists in the US soybean growing belt.
Contaminants are unavoidably high in non-sterile products.
Thus, rhizobial numbers are quickly depleted during storage. A sticker can significantly increase the adhesion of inoculant to the seed surface. Without a sticker, the product will fail to adhere to the seed, and accumulate in the bottom of the planter box. The most convenient sticker is one that is integral or actually a part of the product, allowing a quick, clean and easy inoculation. A safener is added to an inoculant to help protect the rhizobial cells against desiccation and pesticide exposure.