Compost and Media Testing

Compost and Media Testing

We have a range of tests to help you understand the status of composts, media and nutrient solutions. Choose from a range of suites designed to measure the nutrient status, pesticide residue levels, microbial counts or the heavy metal content.

Compost testing

Hill Labs offers a suite of different compost tests that allow you to assess organic matter, nutrient composition, mineral composition, as well as for contaminants such as heavy metals and pesticides.

Media testing

Soil-less growing media can be easily analysed using Hill Labs Basic Media Test. This test suite includes pH, Electrical Conductivity as well as mineral and nutrient analysis.

Nutrient solution testing

Ensuring your hydroponic growing system is delivering optimally is easy when you use Hill Labs Basic NFT Test. This test suite includes pH, Electrical Conductivity as well as mineral and nutrient analysis.

Organic certification of compost

Organic certification testing of compost to New Zealand's BioGro standards can be done easily and quickly using our organic certification test suite.

Contact us for more info

Latest Stories

Remembering Ian Graves

It is with great sadness that we share the news of Ian Graves' passing, as the result of an accident while surfing at his beloved Whale Bay, Raglan. Ian dedicated 19 years to Hill Labs, making a lasting contribution not only to the field of Air Quality testing, but also to the many people who had the privilege of working alongside him. He was a respected colleague, a memorable character, and a valued friend whose presence left a positive mark on our workplace.  
  17 Aug 2026

Pasture and Silage Quality Testing: Turning Grass into Better Decisions

For many New Zealand farmers, pasture is the largest component of the feed budget. Measuring pasture and silage quality is key to getting the most out of home-grown feed. While a paddock may look green and lush, its nutritional value can vary considerably depending on season, pasture species, maturity and soil conditions. Pasture and silage quality testing provides farmers with data on what animals are actually eating, rather than relying on visual assessment alone.
  17 Aug 2026

Erin McIlmurray Appointed Waikato Ballance Farm Environment Awards Chair

Congratulations to Erin McIlmurray, our Market Sector Manager - Agriculture, who has recently been appointed Chair of the Waikato Ballance Farm Environment Awards (BFEA). Reflecting on her new role, Erin says one of the most rewarding parts of being involved with the Awards is hearing the stories behind successful farming and growing operations.
  17 Aug 2026

What our customers have to say

"We've always found them to be responsive in getting results back and giving advice on problems we might be facing."

Andrew Hutchinson, Technical Manager, Turners & Growers

"We strongly recommend Hill Labs as a sound testing service provider to the honey industry."

Nick Walker, Technical Manager, Egmont Honey

"Their sample registration system has made things simple and seamless - collect, scan and send!"

Mathew Bannister, Compliance Manager, First Fresh New Zealand

Accreditations

As a New Zealand accredited laboratory by International Accreditation New Zealand (IANZ), Hill Labs' commitment to quality is tantamount to our overall operating philosophy. We pride ourselves on the quality of our work.