A new application of agro-process intensification is described for nitrogen fixation by Azospirillum brasilense supported within the pores of sulphonated-neutralised polyHIPE polymers (PHPs) which are highly hydrophilic. elastic. crosslinked and ionic with nano-structured pore walls. These bioactive macroscopic polymer particles. https://thebrickes.shop/product-category/gazebo-accessories/