Ostara produces a highly efficient granulated fertiliser, both manufactured and recovered from waste-water streams, that improves yields and reduces negative environmental impacts.  

The world leader in nutrient recovery with 22 commercial installations worldwide, Ostara’s technology provides growers with the most efficient, environmentally friendly source of fertiliser through its Crystal Green Pearl product line.  

Unlike conventional fertilisers, the nutrients in Crystal Green products are only released when triggered by natural chemical reactions affecting the growing roots of plants, increasing nutrient availability and uptake throughout the growing season.  

This is proven to improve crop performance and increase yields, while reducing nutrient loss due to soil tie-up, runoff and leaching, preventing excess water-soluble nutrients from entering our waterways.  

Crystal Green Pearl is registered for use in certified organic farming in Germany, Spain, Denmark, Austria and the Netherlands, meeting rigorous European standards and marking a step forward in more sustainable agriculture.