Ostara begins production on Crystal Green slow-release, renewable, environmentally safe fertiliser

Crystal Green, the world's first slow-release fertiliser -- with a combination of nitrogen, phosphorus and magnesium -- is now in commercial production.

The product has been proven in industry and academic trials and has applications in the turf, nursery and speciality agriculture industries.

It was developed by Ostara Nutrient Recovery Technologies and is being marketed through national and regional distributors in North America.

Ostara nutrient operations vice-president Jim Zablocki said Crystal Green is the only renewable fertiliser that can be used in the same manner as widely used monoammonium phosphate or coated products, with high levels of slow-release magnesium.

He said: "Its crystalline structure allows us to form a completely new chemistry for our industry. Yet unlike other slow-release products it is far more predictable as it is not affected by excessive moisture, bacteria and temperature changes. And its longevity is as reliable as coated products. Your plants will see the difference, and the environment will thank you for both what its made from and how it releases. We just made your phosphorous fertiliser a lot more dependable with extra benefits to the environment."

Crystal Green can be substituted for any existing phosphorous source so there is no need to change equipment or application methods.

It is being produced in Portland at the Durham Advanced Wastewater Treatment Facility by Clean Water Services, a water resource management utility company serving more than 500,000 customers in Washinton state. 

Ostara harvests the phosphorous and ammonia from municipal wastewater and adds magnesium, which causes a chemical reaction resulting in crystalline ammonium phosphate hexa-hydrate.

President and CEO of Ostara Phillip Abrary said: "Unlike fertilisers mined or derived from hydrocarbon sources, Crystal Green is produced from a recycled and renewable product that is safe to use on plant material.  In addition, the product's slow-release characteristics provide a source of phosphorous that will not leach into the water table. Compared to conventional fertiliser manufacturing, the production of Crystal Green is highly energy-efficient and is produced without adding greenhouse gases to the atmosphere."

Crystal Green is a clean by-product of the wastewater treatment process, whereby the phosphorous and ammonia are recovered to create a leading-edge fertiliser and the only slow-release magnesium fertiliser available.

The product was initially developed at the University of British Columbia in Vancouver, Canada, and it has been selected to be showcased at the BC Pavilion during the 2010 Winter Olympic Games.


Subscribe to Horticulture Week for more news, more in-depth features and more technical and market info.

Have you registered with us yet?

Register now to enjoy more articles and free email bulletins

Sign up now
Already registered?
Sign in

Before commenting please read our rules for commenting on articles.

If you see a comment you find offensive, you can flag it as inappropriate. In the top right-hand corner of an individual comment, you will see 'flag as inappropriate'. Clicking this prompts us to review the comment. For further information see our rules for commenting on articles.

comments powered by Disqus

Read These Next

Tree planting guide - three basic rules

Tree planting guide - three basic rules

Choosing the right plant, correct planting procedure and best aftercare are the three basic rules for sucessful tree planting, Sally Drury explains.

Tree planting - what are the benefits of planting trees?

Tree planting - what are the benefits of planting trees?

Mitigating climate change, providing windbreaks and reducing the risk of soil erosion are some of the best reasons for planting trees, says Sally Drury.

Tree and shrubs - nursery market

Tree and shrubs - nursery market

Growers are more optimistic now that garden designers and landscape architects are seeking more mature trees and shrubs, writes Sally Drury.

Opinion... Unbeatable delight of quality plants

Opinion... Unbeatable delight of quality plants

Viewing top-quality plants, both growing and on sale, always gives me pleasure.

Editorial ... More analysis and insight from bumper HW issue

Editorial ... More analysis and insight from bumper HW issue

Welcome to this bumper 72-page July edition of Horticulture Week magazine, packed with exclusive analysis, insight and expert advice on the biggest issues impacting all sectors of the UK horticulture industry right now.

Edwards: Will a weak pound and tariffs on imported stock be good for UK nursery production?

Edwards: Will a weak pound and tariffs on imported stock be good for UK nursery production?

At the time of writing - a few days after the general election - sterling has weakened and we still have no idea of what Brexit means.

Follow us on:
  • Facebook
  • LinkedIn
  • Twitter
  • Google +
Horticulture Jobs
More Horticulture Jobs

Tim Edwards

Boningales Nursery chairman Tim Edwards on the business of ornamentals production

Read Tim Edwards

Ornamentals ranking

Top 30 Ornamentals Nurseries by Turnover 2017

Top 30 Ornamentals Nurseries by Turnover 2017

Tough retail pricing policies and Brexit opportunities drive the top 30 growth strategies.

Pest & Disease Tracker bulletin 

The latest pest and disease alerts, how to treat them, plus EAMU updates, sent direct to your inbox.

Sign up here

Are you a landscape supplier?

Horticulture Week Landscape Project Leads

If so, you should be receiving our new service for Horticulture Week subscribers delivering landscape project leads from live, approved, planning applications across the UK.

Peter Seabrook

Inspiration and insight from travels around the horticultural world

Read more Peter Seabrook articles